Nomods Royal Oak 37mm Seiko Mod Case Black PVD
Nomods Black PVD / Blue AR Royal Oak 37mm Seiko Mod Case Black PVD
Nomods Royal Oak 37mm Seiko Mod Case Black PVD
Nomods Black PVD / Blue AR Royal Oak 37mm Seiko Mod Case Black PVD

Black PVD Royal Oak Seiko Mod Case – 37mm NH35/NH72

$130.00
/
Tax included.
Color
Anti-Reflective Coating
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We accept returns/exchanges according to our policy for unworn items in original condition. Custom changes may have different terms — contact us for questions

The Nomods Royal Oak 37mm Seiko Mod Case in Black PVD is designed for modders building stealthy, high-contrast Seiko mods with refined proportions. Featuring a matte black finish, integrated lug design, and Royal Oak–inspired geometry, it delivers a bold, modern aesthetic in a compact form. Compatible with both NH72 and NH35 movements, it supports 28.5 mm Seiko dials for flexible OEM or custom builds.

• Dimensions: 37 mm × 48 mm × 11.2 mm (11.0 mm without crystal)
• Material: 316L stainless steel with black PVD coating
• Crystal: Sapphire (clear or blue AR options)
• Water Resistance: 100 m
• Compatibility: NH35, NH38, NH70, NH71, NH72 movements
• Dial Fit: 28.5 mm
• Includes: Case, Spacer Ring, Exhibition Caseback
• Hand Fitment: Standard-length hands (~12.5 mm)

Built for precision and visual impact, the Black PVD Royal Oak 37mm case is ideal for Seiko modders creating AP-style skeleton builds or tactical all-black Seiko mods with lasting durability and sleek execution.

Other Colors

FAQs

Nomods is based in Oslo, Norway. We offer shipping from our workshop here, or directly from our factory depending on buyers location. Read more about this in our shipping policy!

We do not offer counterfeit logos on our products.

Contact us for a customized logo

If you are having a hard time removing the screws from the bracelet, take the case and bracelet under some warm soapy water and wiggle each link back and forth. This will clean out residue from production which makes the screws easier to remove and improve the bracelet quality over all

AR coating stands for Anti reflective coating and reduces the reflection in the crystal enhancing visibility. Blue AR has a slightly tinted reflection while Clear AR has not.

Scroll down to see the comparison!

No it does not! Our 37mm Royal Oak Seiko Modding case arrives as one complete case, and is ready to house a movement straight from the box.

In order to make this Seiko Mod Case as thin as possible, there is limited room in the back of the case. Therefore some custom NH35 rotors do not fit. Pay close attention to the respective rotor. Does it exceed the height of the middle screw? If yes then it may be too thick for this case.

We recommend a 28.5/29mm dial for our 37mm Royal Oak Case. The typical 31.8mm mod dials that many Royal Oak Mod Cases use are too big.

Clear vs Blue Anti-reflective Coating

What Inspires This Case

The Black PVD Royal Oak 37mm Seiko Modding Case was developed for modders who prefer a more tactical take on the Seikoak design. We wanted to keep the same angular geometry of the Seiko Royal Oak, but translate it into something that feels modern, quiet, and mechanical — more stealth than shine. The matte PVD finish was chosen after several trials with darker coatings; this version had the cleanest tone and the most consistent grain when brushed.

Every facet of the case was adjusted slightly to handle the darker finish — polished edges tend to disappear under black coatings, so we modified the transitions to preserve the geometry without losing depth. The result is a Seiko Modding case that holds its shape in low light, giving subtle highlights instead of reflections. It’s meant for builders who want contrast: skeletonized NH72s against black bridges, or light dials framed by an all-black case.

Why 37mm Is Perfectly Proportioned

The 37mm Seikoak Mod platform keeps the visual weight under control. At this size, 28.5mm Seiko dials sit naturally inside the rehaut, and the integrated lugs maintain balance across the wrist. Going larger makes the all-black finish feel too heavy, while smaller cases start to lose the crisp geometry that defines the Seikoak profile.

In testing, this dimension delivered the most stable visual proportions — enough surface area to show the finishing, but compact enough to stay true to the original Royal Oak influence. Combined with Seiko mod parts like the NH35 or NH72, it becomes a solid foundation for stealth-focused builds: minimal, durable, and precise. It’s the most understated version of the Seiko Royal Oak mod, but also one of the most technically honest.