{"title":"Seiko Mod Movements","description":"\u003cp\u003e7 Seiko NH automatic movements covering every mod build type: the NH35 with date, NH36 with day-date, NH38 with no date window, NH34 GMT, and three skeleton calibers — NH70 (silver bridges), NH71 (gold bridges), and NH72 (dark bridges). All share the same 21,600 bph beat rate, approximately 41-hour power reserve, and hacking plus hand-winding functionality. Every movement drops directly into all Nomods cases with no adapter or modification needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCase compatibility:\u003c\/strong\u003e All seven movements fit every Nomods case — Seikonaut, Petrichor, Royal Oak 37 mm, and Royal Oak 41 mm. The movement diameter and mounting are standardized across the entire NH family.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial pairing:\u003c\/strong\u003e NH35, NH36, NH38, and NH34 GMT pair with solid dials (index, waffle, sunburst). NH70, NH71, and NH72 pair with skeleton dials that have a cutout center to expose the decorated bridges.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWatch out:\u003c\/strong\u003e Do not pair a skeleton dial with an NH35 or NH36 — the solid rotor plate underneath looks unfinished through the dial cutout. Similarly, solid dials will cover up the decorated bridges of a skeleton movement, defeating the purpose. Always match dial type to movement type.\u003c\/p\u003e\n\u003ch2\u003eHow to Choose Your Movement\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDate vs. no-date:\u003c\/strong\u003e The NH35 shows the date at the 3 o’clock position, which is the most common configuration for everyday watches. The NH36 adds a day display alongside the date. The NH38 removes the date window entirely for a cleaner dial — popular for dress builds where the symmetry matters. The NH34 is a GMT movement with a fourth hand that tracks a second time zone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSolid vs. skeleton:\u003c\/strong\u003e If you want a traditional watch face with printed or applied indices, use an NH35, NH36, or NH38 with a solid dial. If you want the mechanical movement visible through the dial, use an NH70, NH71, or NH72 with a skeleton dial. The visual difference is dramatic: skeleton builds show spinning gears, the balance wheel, and the decorative bridge finishing in real time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSkeleton bridge color:\u003c\/strong\u003e The NH70 has silver-toned bridges for a clean, mechanical look. The NH71 has gold-toned bridges that pair well with gold cases and dials. The NH72 has dark-toned bridges that create a stealthier, more contrast-heavy aesthetic when paired with a dark skeleton dial. All three share identical specs — the only difference is the bridge finishing color.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBudget consideration:\u003c\/strong\u003e The NH36 and NH38 are both priced at $55, making them the most affordable entry point. The NH35 at $85 costs more due to supply availability. Among skeleton movements, the NH70 at $70 is the budget option, while the NH71 and NH72 are $95 each.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBeginner recommendation:\u003c\/strong\u003e The NH36 at $55 is the best starting movement. It has the day-date complication, hacking and hand-winding, and the lowest price in the NH35 family. Pair it with any solid dial and any Nomods case. For a first skeleton build, the NH70 at $70 keeps costs down while delivering the full open-heart effect. Read the \u003ca href=\"\/en-fr\/blogs\/seiko-mod-parts\/nh72-skeleton-movement-guide\"\u003eNH72 skeleton movement guide\u003c\/a\u003e for detailed build ideas and comparisons.\u003c\/p\u003e\n\u003ch2\u003eQuick Comparison\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eCaliber\u003c\/th\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eDate\u003c\/th\u003e\n\u003cth\u003eSkeleton\u003c\/th\u003e\n\u003cth\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH35\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDate at 3\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e$85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH36\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eDay + Date\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e$55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH38\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003ctd\u003eNo date\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e$55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH34 GMT\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eGMT\u003c\/td\u003e\n\u003ctd\u003eDate at 3\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003ctd\u003e$55\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH70\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eNo date\u003c\/td\u003e\n\u003ctd\u003eSilver bridges\u003c\/td\u003e\n\u003ctd\u003e$70\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH71\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eNo date\u003c\/td\u003e\n\u003ctd\u003eGold bridges\u003c\/td\u003e\n\u003ctd\u003e$95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eNH72\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eNo date\u003c\/td\u003e\n\u003ctd\u003eDark bridges\u003c\/td\u003e\n\u003ctd\u003e$95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eDo all these movements fit every Nomods case?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes. All seven movements — NH35, NH36, NH38, NH34 GMT, NH70, NH71, and NH72 — share the same physical dimensions and drop directly into every Nomods case (Seikonaut, Petrichor, Royal Oak 37 mm, and Royal Oak 41 mm) with no spacer ring, adapter, or modification required.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhat is the difference between NH35 and NH36?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe NH35 displays the date only (at 3 o’clock). The NH36 displays both the day and the date. Mechanically they are the same: 21,600 bph, ~41-hour power reserve, hacking, and hand-winding. Choose based on whether you want a day window on your dial. The NH36 is currently priced lower at $55 compared to the NH35 at $85.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhich movement should I pick for my first build?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe NH36 at $55 is the best value for a first build. It includes hacking (second hand stops when you pull the crown, so you can set the time precisely) and hand-winding (you can wind it by turning the crown instead of shaking the watch). Pair it with any solid dial in either size. For a first skeleton build, the NH70 at $70 is the most affordable skeleton option.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eCan I use a skeleton movement with a solid dial?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eTechnically yes — the movement will physically fit and the watch will run. But a solid dial covers the decorated bridges entirely, which defeats the purpose of paying extra for a skeleton caliber. Use an NH35, NH36, or NH38 with solid dials and reserve the NH70, NH71, and NH72 for skeleton dials where the movement finishing is actually visible.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-cases\"\u003eSeiko Mod Cases\u003c\/a\u003e — Seikonaut, Petrichor, and Royal Oak cases in 37–41 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-dials\"\u003eSeiko Mod Dials\u003c\/a\u003e — solid and skeleton dials in 28.5 mm and 30.8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eSeiko Mod Hands\u003c\/a\u003e — polished and brushed hand sets to complete the dial\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eAll Movements\u003c\/a\u003e — browse the full movement collection with detailed specs\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/blogs\/seiko-mod-parts\/nh72-skeleton-movement-guide\"\u003eNH72 Skeleton Guide\u003c\/a\u003e — in-depth comparison of all three skeleton calibers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","products":[{"product_id":"nh35-movement","title":"NH35 Automatic Movement","description":"\u003cp\u003eThe Seiko NH35 is the most widely used automatic movement in the Seiko modding community. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH35 delivers reliable automatic timekeeping with a date complication at three o’clock, hacking seconds for precise time-setting, and hand-winding for quick startup after sitting unworn. If you are building your first Seiko mod or replacing a worn movement, the NH35 is the caliber most builders reach for.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH35A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eYes (at 3 o’clock)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH35 is a standard-size automatic movement that fits every Nomods case platform: the Royal Oak 37 mm, the Royal Oak 41 mm, the Petrichor field watch, and the Seikonaut nautilus-style case. It accepts both solid dials (waffle, , index) and skeleton dials, though solid dials are the most common pairing since the NH35 has solid bridges with no open-worked decoration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH35 movement. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH35A movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eNomods uses the NH35 as the default movement in the majority of its builds because it strikes the ideal balance between reliability, availability, and functionality. The date window at three o’clock suits everyday wear, hacking seconds let you set the time to the exact second, and hand-winding means you can start the watch without shaking it after a few days off the wrist. The NH35 has been in production for years, parts and documentation are widely available, and it has earned its reputation as the gold standard movement for Seiko modifications.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhat is the difference between the NH35 and NH36?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe NH35 has a date-only complication, displaying the date in a window at three o’clock. The NH36 adds a day wheel, showing both the day of the week and the date. Both share the same 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking, and hand-winding. Choose the NH35 if your dial has a single date window or no date cutout, and the NH36 if your dial has a day-date aperture.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWill the NH35 fit my Nomods case?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes. The NH35 fits every Nomods case platform — the Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. All Nomods cases are designed around the NH35\/NH36 movement family. Pair it with a 28.5 mm dial for the 37 mm and Petrichor cases, or a 30.8 mm dial for the 41 mm and Seikonaut cases.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH35 movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day. In practice, most NH35 movements run well within that range, and accuracy can be improved further through regulation by a watchmaker. For a movement in this price class, the NH35 is considered highly reliable and consistent.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — octagonal integrated case for 28.5 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-dials\"\u003eDials\u003c\/a\u003e — solid and skeleton dials in 28.5 mm and 30.8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — all Nomods hands are compatible with the NH35\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41488695296090,"sku":"NH35-M","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh35-tmi-1190706670.jpg?v=1756820889"},{"product_id":"nh72-skeleton-movement","title":"NH72 Skeleton Automatic Movement","description":"\u003cp\u003eThe Seiko NH72 is the most popular skeleton movement in the Seiko modding world. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH72 features open-worked bridges finished in a dark plating that creates striking contrast when viewed through a skeleton dial. The dark bridges against the metallic internal components produce a dramatic depth effect that neither the silver NH70 nor the gold NH71 can match. Same proven platform underneath: 21,600 bph, 24 jewels, 41-hour power reserve, hacking, and hand-winding.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH72A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic Skeleton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eYes (open-worked bridges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridge Finish\u003c\/td\u003e\n\u003ctd\u003eDark-plated (black)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH72 fits every Nomods case: Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. As with all skeleton movements, it requires a skeleton dial to show the dark-plated open-worked bridges. The NH72’s dark finish pairs naturally with silver, gunmetal, and black cases where the dark bridges create visual depth through the dial cutouts. It also works well with rose gold cases for a contrasting warm-cool combination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm skeleton dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm skeleton dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH72 skeleton movement. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH72A skeleton movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH72 is the skeleton movement that most Seiko mod builders choose, and for good reason. The dark-plated bridges create a level of visual contrast that the silver NH70 and gold NH71 cannot replicate. When viewed through a skeleton dial, the dark bridges frame the bright metallic gears, jewels, and balance wheel in a way that draws the eye into the movement rather than reflecting light off the surface. This depth effect is what makes the NH72 the defining movement for open heart and skeleton Seiko builds. Nomods uses the NH72 as the default skeleton caliber in its Royal Oak Skeleton, Seikonaut Skeleton, and Petrichor Skeleton configurations.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhat is the difference between the NH72 and NH70?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe NH72 and NH70 are mechanically identical skeleton movements — same 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking, and hand-winding. The difference is the bridge finish: the NH72 has dark-plated (black) bridges that create dramatic contrast through a skeleton dial, while the NH70 has natural silver bridges for a cleaner, more industrial look. The NH72 is the more popular choice because the dark bridges produce a stronger visual depth effect.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eDoes the NH72 require a skeleton dial?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes, a skeleton dial is essential to see the dark-plated open-worked bridges. Skeleton dials have cutouts or transparent sections that reveal the movement underneath. Installing a solid dial would completely hide the NH72’s signature dark bridge finish, and you would be better served by the less expensive NH38 (no-date, solid bridges) since the skeleton decoration would be invisible.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH72 skeleton movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, identical to the NH35, NH70, and NH71. The dark plating and open-worked bridges are cosmetic treatments only and do not affect the movement’s timekeeping performance. A watchmaker can regulate the NH72 for improved accuracy if desired.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/nautilus-skeleton-dial-30-8mm-silver-index\"\u003eNautilus Skeleton Dial (30.8 mm, Silver)\u003c\/a\u003e — the dark NH72 bridges contrast beautifully against silver skeleton dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — silver case with skeleton dial cutouts for the NH72\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm skeleton dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — all Nomods hands are compatible with the NH72\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/blogs\/seiko-mod-parts\/nh72-skeleton-movement-guide\"\u003eNH72 Skeleton Movement Guide\u003c\/a\u003e — comprehensive guide to building with the NH72\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/nh7x\"\u003eSkeleton collection\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41488725377114,"sku":"NH72-M","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh72-tmi-automatic-skeleton-movement-1190676015.jpg?v=1756813799"},{"product_id":"nh70-skeleton-movement","title":"NH70 Skeleton Automatic Movement","description":"\u003cp\u003eThe Seiko NH70 is the entry-level skeleton movement in the NH family. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH70 features open-worked bridges in a natural silver finish that expose the movement’s inner mechanics through a skeleton dial. It shares the 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking, and hand-winding of the solid NH35 family, but trades the date complication for the open-worked architecture that defines skeleton watches.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH70A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic Skeleton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eYes (open-worked bridges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridge Finish\u003c\/td\u003e\n\u003ctd\u003eSilver \/ natural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH70 fits every Nomods case: Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. To see the open-worked bridges, you need a skeleton dial — a dial with cutouts or transparent sections that reveal the movement underneath. Pairing the NH70 with a solid dial hides the skeleton architecture entirely, which defeats the purpose of choosing this caliber over the less expensive NH38.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm skeleton dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm skeleton dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH70 skeleton movement. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH70A skeleton movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH70 is the most affordable way to get a genuine Seiko skeleton movement into your build. The natural silver bridge finish has a clean, industrial look that pairs well with silver and gunmetal cases. If you want the open-worked skeleton aesthetic without committing to the premium gold or dark bridge finishes of the NH71 and NH72, the NH70 is the right starting point. Nomods uses the NH70 in entry-level skeleton builds where the customer wants visible mechanics at a lower price point.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhat is the difference between the NH70 and NH72?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eBoth are skeleton movements with the same 21,600 bph frequency, 24 jewels, and 41-hour power reserve. The difference is the bridge finish: the NH70 has natural silver bridges, while the NH72 has dark-plated (black) bridges. The NH72 creates a more dramatic contrast when viewed through a skeleton dial, while the NH70 has a cleaner, more industrial appearance. The NH71 is the third option, featuring gold-plated bridges.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eDoes the NH70 need a skeleton dial?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYou need a skeleton dial to see the open-worked bridges that make the NH70 a skeleton movement. A skeleton dial has cutouts or transparent sections that reveal the movement underneath. You can technically install a solid dial, but the skeleton architecture will be completely hidden, and you would be better served by the less expensive NH38 (no-date) or NH35 (with date).\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH70 skeleton movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, the same as the solid NH35 family. The open-worked bridges are purely aesthetic — they do not affect the timekeeping mechanism. Accuracy can be improved through regulation by a watchmaker.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/nautilus-skeleton-dial-30-8mm-silver-index\"\u003eNautilus Skeleton Dial (30.8 mm, Silver)\u003c\/a\u003e — pairs with the NH70’s natural silver bridges\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — silver case to match the silver bridge finish\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm skeleton dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — all Nomods hands are compatible with the NH70\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/blogs\/seiko-mod-parts\/nh72-skeleton-movement-guide\"\u003eSkeleton Movement Guide\u003c\/a\u003e — in-depth guide to NH7x skeleton movements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/nh7x\"\u003eSkeleton collection\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41488725540954,"sku":"NH70-M","price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh70-skeleton-tmi-1190676016.jpg?v=1756813802"},{"product_id":"nh34-gmt-movement","title":"NH34 GMT Automatic Movement","description":"\u003cp\u003eThe Seiko NH34 is the only affordable automatic GMT movement available for Seiko modding. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH34 adds a true 24-hour GMT hand to the proven NH35 platform, allowing you to track a second time zone on a GMT bezel. It retains the 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking seconds, and hand-winding that define the NH family. If you want GMT functionality in a Seiko mod without spending hundreds on a Swiss caliber, this is your movement.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH34A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMT\u003c\/td\u003e\n\u003ctd\u003eYes (24-hour hand)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH34 shares the same case mounting dimensions as the NH35 family, so it fits every Nomods case: Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. The key difference is the additional GMT hand, which requires a fourth hand to be installed during assembly. Use the NH34 with dials that have 24-hour markings or GMT-style bezels for full GMT functionality, though the movement works with any compatible dial.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e Requires a four-hand set (hour, minute, seconds, GMT). All Nomods NH-series hands are compatible, plus the additional GMT hand.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH34A movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH34 fills a gap that no other movement in this price range can: affordable automatic GMT. Before TMI released the NH34, getting a GMT complication in a Seiko mod meant either a quartz GMT module or spending several hundred dollars on a Swiss movement. The NH34 puts a true 24-hour GMT hand on the dial at the same price as a standard NH35, making traveler-style builds accessible to anyone. Nomods uses the NH34 in builds where customers want to track two time zones, and it pairs particularly well with GMT bezel inserts for a complete Pepsi, Batman, or Coke aesthetic.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow does the GMT function work on the NH34?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe NH34 adds a fourth hand that completes one full rotation every 24 hours. You read it against a 24-hour scale on the bezel or dial to track a second time zone. The local hour hand can be set independently by pulling the crown to the first position and turning it, so you can adjust for time zone changes without losing your GMT reference.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWill the NH34 fit the same cases as the NH35?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes. The NH34 has the same external dimensions and mounting points as the NH35, so it drops into every Nomods case — Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. The only assembly difference is the extra GMT hand that needs to be installed alongside the standard hour, minute, and seconds hands.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH34 GMT movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, the same as the rest of the NH family. The GMT complication does not affect timekeeping accuracy. As with all NH movements, a watchmaker can regulate the movement for tighter tolerances if desired.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — octagonal integrated case for 28.5 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-dials\"\u003eDials\u003c\/a\u003e — pair with a GMT-marked dial for full second-timezone functionality\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — four-hand sets (hour, minute, seconds, GMT) for the NH34\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41590343368794,"sku":"NH34-M","price":130.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh34-gmt-automatic-movement-tmi-1190706669.jpg?v=1756820886"},{"product_id":"nh36-movement","title":"NH36 Automatic Movement","description":"\u003cp\u003eThe Seiko NH36 adds a day-of-the-week display to the proven NH35 platform. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH36 shows both the day and date through a combined aperture, making it the right choice for dials with a day-date window. It shares every other specification with the NH35 — same 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking seconds, and hand-winding — so if you already trust the NH35, the NH36 is its day-date counterpart.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH36A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDay\u003c\/td\u003e\n\u003ctd\u003eYes (day + date display)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH36 is mechanically identical to the NH35 in size and mounting, so it fits every Nomods case: the Royal Oak 37 mm, the Royal Oak 41 mm, the Petrichor, and the Seikonaut. The only difference is the day wheel, which requires a dial with a day-date cutout instead of a date-only window. If your dial has a single date aperture, use the NH35 instead.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH36 movement. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH36A movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH36 exists for builds where the dial features a day-date window. It is the same proven platform as the NH35 — same frequency, same jewel count, same power reserve, same hacking and hand-winding — with the addition of a day wheel that displays the day of the week alongside the date. Nomods uses the NH36 in builds where the customer selects a dial with a day-date aperture, or when the design calls for that extra information on the dial. If your dial only has a single date window or no date window at all, stick with the NH35 or NH38 instead.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eCan I use an NH36 with a date-only dial?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eTechnically the movement will fit, but the day wheel will be hidden behind the dial since there is no aperture for it. If your dial only has a date window, the NH35 is the better choice — it is the same movement without the day wheel, so the date still aligns correctly at three o’clock.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWill the NH36 fit my Nomods case?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes. The NH36 has the same dimensions as the NH35 and fits every Nomods case — Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. Pair it with a 28.5 mm dial for 37 mm and Petrichor cases, or a 30.8 mm dial for 41 mm and Seikonaut cases.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH36 movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, identical to the NH35. Most units run within that range out of the box, and a watchmaker can regulate it further for improved accuracy. The day-date complication does not affect timekeeping performance.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — octagonal integrated case for 28.5 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-dials\"\u003eDials\u003c\/a\u003e — choose a dial with a day-date window for full NH36 functionality\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — all Nomods hands are compatible with the NH36\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41590360146010,"sku":"NH36-M","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-movements-nh36-automatic-movement-1226746188.jpg?v=1773142390"},{"product_id":"nh38-movement","title":"NH38 Automatic Movement","description":"\u003cp\u003eThe Seiko NH38 strips the date complication entirely, giving you a clean dial with no window cutout. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH38 belongs to the same movement family as the NH35 and NH36 and shares their 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking seconds, and hand-winding. Choose the NH38 when your build calls for a minimalist dial design where a date window would disrupt the symmetry.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH38A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH38 shares the same physical dimensions as the NH35 and NH36, so it drops into every Nomods case without modification: Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. Because there is no date mechanism, the NH38 works perfectly with dials that have no date cutout — but it also works with date-window dials if you do not mind the blank space behind the aperture.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH38 movement. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH38A movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH38 is for clean, no-date builds. When you want a dial with unbroken symmetry — no date window cutting into the indices, no day wheel cluttering the layout — the NH38 is the correct caliber. It shares every mechanical attribute with the NH35 except the date disc, so you are not sacrificing reliability or build quality for a cleaner look. Nomods uses the NH38 in builds where minimalist dial design is the priority, particularly in diver-style and field-style watches where the owner wants time-only display.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eWhat is the difference between the NH38 and NH35?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe only difference is the date complication. The NH35 has a date wheel that displays the date through a window at three o’clock. The NH38 has no date mechanism at all, resulting in a cleaner crown operation (one less position to cycle through) and full freedom to use dials without any cutout. Frequency, jewel count, power reserve, hacking, and hand-winding are all identical.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eCan I use a dial with a date window on the NH38?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYou can physically install a date-window dial, but there will be no date disc behind the aperture — you will see a blank space where the date number would normally appear. If you want a date display, use the NH35 for date-only or the NH36 for day-date.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH38 movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, the same as the NH35 and NH36. Removing the date complication does not change the timekeeping performance. As with all movements in this family, accuracy can be improved through regulation by a watchmaker.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/royal-oak-37mm-case-silver\"\u003eRoyal Oak 37 mm Case (Silver)\u003c\/a\u003e — octagonal integrated case for 28.5 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-dials\"\u003eDials\u003c\/a\u003e — choose a no-date dial for the cleanest look with the NH38\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — all Nomods hands are compatible with the NH38\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41590363095130,"sku":"NH38-M","price":90.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh38-tmi-1190706668.jpg?v=1756820883"},{"product_id":"nh71-skeleton-movement","title":"NH71 Skeleton Automatic Movement","description":"\u003cp\u003eThe Seiko NH71 is a gold-plated skeleton movement that brings a warm, luxurious tone to any skeleton build. Manufactured by TMI (Time Module Inc.), a subsidiary of Seiko Instruments, the NH71 features the same open-worked bridge architecture as the NH70 and NH72, but finished in gold plating that catches light beautifully through a skeleton dial. The 21,600 bph frequency, 24 jewels, 41-hour power reserve, hacking, and hand-winding are identical across the entire NH skeleton family. Choose the NH71 when your build pairs with gold-tone cases or when you want the warmest bridge color available.\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaliber\u003c\/td\u003e\n\u003ctd\u003eSeiko NH71A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic Skeleton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency\u003c\/td\u003e\n\u003ctd\u003e21,600 bph (6 beats per second)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e41 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHacking\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHand-Winding\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDate\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSkeleton\u003c\/td\u003e\n\u003ctd\u003eYes (open-worked bridges)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBridge Finish\u003c\/td\u003e\n\u003ctd\u003eGold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStem Position\u003c\/td\u003e\n\u003ctd\u003e3 o’clock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotor\u003c\/td\u003e\n\u003ctd\u003eBidirectional\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThe NH71 fits every Nomods case: Royal Oak 37 mm, Royal Oak 41 mm, Petrichor, and Seikonaut. Like all skeleton movements, it requires a skeleton dial to reveal the gold-plated open-worked bridges. The warm golden tone of the NH71 pairs particularly well with gold PVD cases and gold-accented dials, creating a cohesive warm-tone aesthetic throughout the build.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDial sizes:\u003c\/strong\u003e 28.5 mm skeleton dials for the Royal Oak 37 mm and Petrichor cases · 30.8 mm skeleton dials for the Royal Oak 41 mm and Seikonaut cases\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHands:\u003c\/strong\u003e All Nomods hands are compatible with the NH71 skeleton movement. Gold-tone hands complement the gold bridge finish. Crown sits at 3 o’clock.\u003c\/p\u003e\n\u003ch3\u003eWhat’s Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSeiko NH71A skeleton movement (fully assembled with rotor)\u003c\/li\u003e\n\u003cli\u003eStem\u003c\/li\u003e\n\u003cli\u003eMovement specification sheet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy This Movement\u003c\/h2\u003e\n\u003cp\u003eThe NH71 is the gold option in the skeleton lineup. Where the NH70 offers neutral silver bridges and the NH72 delivers dark, dramatic contrast, the NH71 brings warmth. The gold-plated bridges glow through a skeleton dial, particularly when paired with a gold PVD case where the bridge color and case color complement each other for a unified luxury aesthetic. Nomods uses the NH71 in premium gold skeleton builds — the Royal Oak Gold Skeleton and similar configurations where the customer wants every visible component to share the same warm tone.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv itemscope itemtype=\"https:\/\/schema.org\/FAQPage\"\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow does the NH71 gold finish compare to the NH70 and NH72?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eAll three are mechanically identical skeleton movements with 21,600 bph, 24 jewels, and 41-hour power reserve. The difference is purely the bridge finish: the NH70 has natural silver bridges, the NH71 has gold-plated bridges, and the NH72 has dark-plated (black) bridges. Choose based on the color scheme of your build — gold bridges pair best with gold cases, silver with silver or gunmetal cases, and dark bridges with black or steel cases.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eDoes the NH71 need a skeleton dial?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eYes. The gold-plated open-worked bridges are only visible through a skeleton dial — a dial with cutouts or transparent sections. Installing a solid dial over the NH71 would completely hide the gold bridge finish and waste the premium you paid over a standard NH38 or NH35. Always pair skeleton movements with skeleton dials.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv itemscope itemprop=\"mainEntity\" itemtype=\"https:\/\/schema.org\/Question\"\u003e\n\u003ch3 itemprop=\"name\"\u003eHow accurate is the NH71 skeleton movement?\u003c\/h3\u003e\n\u003cdiv itemscope itemprop=\"acceptedAnswer\" itemtype=\"https:\/\/schema.org\/Answer\"\u003e\u003cdiv itemprop=\"text\"\u003e\u003cp\u003eThe factory specification is ±20 seconds per day, identical to the NH70, NH72, and the solid NH35 family. The gold plating and open-worked bridges are cosmetic modifications to the base caliber and do not affect the timekeeping mechanism or accuracy.\u003c\/p\u003e\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2\u003eComplete Your Build\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seiko-mod-royal-oak-37mm-skeleton-gold\"\u003eRoyal Oak 37 mm Gold Skeleton\u003c\/a\u003e — gold PVD case that matches the NH71’s gold bridges\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/nautilus-skeleton-dial-30-8mm-silver-index\"\u003eNautilus Skeleton Dial (30.8 mm)\u003c\/a\u003e — skeleton dial for Seikonaut and 41 mm cases\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/products\/seikonaut-40mm-case-silver\"\u003eSeikonaut Nautilus Case\u003c\/a\u003e — nautilus-style case for 30.8 mm skeleton dials\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/collections\/seiko-mod-hands\"\u003eHands\u003c\/a\u003e — gold-tone hands complement the NH71’s gold bridges\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/en-fr\/blogs\/seiko-mod-parts\/nh72-skeleton-movement-guide\"\u003eSkeleton Movement Guide\u003c\/a\u003e — in-depth guide to NH7x skeleton movements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse all \u003ca href=\"\/en-fr\/collections\/watch-movements\"\u003ewatch movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/seiko-mod-movements\"\u003eSeiko mod movements\u003c\/a\u003e · \u003ca href=\"\/en-fr\/collections\/nh7x\"\u003eSkeleton collection\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNomods is an independent brand. Our products are original designs inspired by iconic watch aesthetics. We are not affiliated with or endorsed by any luxury watch manufacturer. All brand names are used for reference purposes only.\u003c\/em\u003e\u003c\/p\u003e","brand":"Nomods","offers":[{"title":"Default Title","offer_id":41935864430682,"sku":"NH71-M","price":140.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/files\/nomods-seiko-nh71-tmi-automatic-skeleton-movement-1190676013.jpg?v=1756813795"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0601\/2151\/4074\/collections\/nomods-seiko-nh72-tmi-automatic-skeleton-movement-1190706664.jpg?v=1773227564","url":"https:\/\/nomods.co\/en-fr\/collections\/seiko-mod-movements.oembed","provider":"Nomods","version":"1.0","type":"link"}