Royal Oak 37mm V2 Case – Silver
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- Genuine 316L Steel & Sapphire
The V2 Ultrathin Silver Royal Oak case in brushed 316L stainless steel — at just 9.95 mm thick with a solid caseback, this is one of the thinnest Royal Oak-style cases available for Seiko modding. The angular octagonal bezel and integrated lugs capture the iconic sports-luxury silhouette at 37 mm diameter with 48 mm lug-to-lug reach. Sapphire crystal with your choice of blue or clear anti-reflective coating, screw-down crown with signed Nomods logo, and 100 m water resistance. Compatible with NH35, NH36, NH38, NH70, NH71, and NH72 movements. Choose between a solid caseback at 9.95 mm or an exhibition caseback at 10.3 mm to display your movement.
Specifications
| Specification | Value |
|---|---|
| Diameter | 37 mm |
| Lug-to-Lug | 48 mm |
| Thickness | 9.95 mm (solid) / 10.3 mm (exhibition) |
| Lug Width | 20 mm |
| Material | 316L Stainless Steel, brushed silver |
| Crystal | Sapphire (Blue AR or Clear AR) |
| Water Resistance | 100 m |
| Dial Fit | 28.5 mm |
| Crown | Screw-down, signed Nomods logo |
Compatibility
Movements: NH35, NH36, NH38, NH70, NH71, NH72. All Seiko NH-family movements with the standard 3 o’clock crown position fit this case directly. Not compatible with 7S26 or 7S36 movements due to different stem specifications.
Dials: 28.5 mm direct fit. Standard Seiko mod dials in this size drop in without modification.
Bracelet: The Royal Oak 37mm bracelet connects via the 20 mm lug width for the full integrated-lug look.
What’s Included
- Case body (brushed silver 316L stainless steel)
- Sapphire crystal (pre-installed, Blue AR or Clear AR per variant)
- Caseback (solid or exhibition per variant)
- Crown with signed Nomods logo
- Crystal gasket (pre-installed)
- Caseback gasket
- Spring bars × 2
Movement, dial, hands, bracelet, and tools are not included.
Why the V2 Ultrathin
The V2 is the second generation of our Royal Oak 37mm case — redesigned from the ground up to reduce thickness without sacrificing water resistance. At 9.95 mm with a solid caseback, it is one of the slimmest Royal Oak-inspired Seiko mod cases on the market. Most competing cases in this style sit above 11 mm. The angular octagonal geometry follows the proportions of the AP Royal Oak — brushed flat surfaces, polished rehaut, and integrated lugs that flow into the bracelet attachment — at a fraction of the price. The silver finish is the most versatile in the lineup: natural 316L steel requires no coating, making it the most scratch-tolerant option available.
Build Guide
Difficulty: Moderate — standard Seiko mod build. Recommended tools: caseback opener, hand press or hand setting tool, stem cutter, movement holder, and rodico.
Key notes: The exhibition caseback adds 0.35 mm to total thickness compared to the solid caseback. Cut the crown stem to length before installing — measure against the case rather than estimating. Align the chapter ring carefully before pressing the crystal back into position.
For step-by-step instructions, read our complete build guide.
Frequently Asked Questions
What movements fit this case?
The Royal Oak 37mm V2 case accepts Seiko NH35, NH36, NH38, NH70, NH71, and NH72 movements. All share the same case fitment and crown position. The 7S26 and 7S36 movements are not compatible due to a different stem specification.
What is the difference between solid and exhibition caseback?
The solid caseback gives the case its thinnest profile at 9.95 mm and provides a clean, sealed back. The exhibition caseback has a sapphire window that lets you see the movement inside, but adds 0.35 mm for a total thickness of 10.3 mm. Both maintain 100 m water resistance.
What dial size fits this case?
28.5 mm dials fit directly. This is the standard Seiko mod dial size used across Royal Oak 37mm, Nautilus, and other 37 mm platforms. Check our Royal Oak parts collection for compatible dials.
Is 37 mm too small for a men’s watch?
37 mm is the classic men’s watch diameter — the same size as vintage Rolex Datejusts and the original AP Royal Oak. With 48 mm lug-to-lug, this case provides strong wrist presence without overwhelming smaller or medium wrists. It wears larger than the number suggests thanks to the angular bezel and integrated-lug design.
Complete Your Build
Pair the silver case with matching components:
- Dials: Silver dial · Silver waffle dial · Blue waffle dial
- Skeleton dials: Silver skeleton V2 · Gold skeleton V2
- Hands: Silver V2 hands
- Bracelet: Royal Oak 37mm bracelet
- Movements: NH35 · NH72
Browse all Royal Oak 37mm cases · Recommended with 37mm Royal Oak · Royal Oak parts · All cases
Nomods 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.
Orders are processed within 1–3 business days (excluding weekends and holidays).
We accept returns/exchanges according to our policy for unworn items in original condition. Custom changes may have different terms — contact us for questions
