Royal Oak 37mm V2 Case – Gunmetal
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- Genuine 316L Steel & Sapphire
The V2 Ultrathin Royal Oak case in gunmetal gray — a darker, matte-finish alternative to polished silver that avoids the scratch visibility of full black PVD. The gunmetal coating over 316L stainless steel gives the angular octagonal bezel and integrated lugs an industrial, tool-watch presence while maintaining the refined V2 profile at just 9.95 mm thick. At 37 mm diameter and 48 mm lug-to-lug, this case reads as understated and modern. Sapphire crystal with blue or clear AR coating, screw-down signed crown, 100 m water resistance. Compatible with NH35, NH36, NH38, NH70, NH71, and NH72 movements. Solid or exhibition caseback.
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, gunmetal coating |
| 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. Standard Seiko NH-family fitment at 3 o’clock crown position. Not compatible with 7S26 or 7S36 movements.
Dials: 28.5 mm direct fit. The neutral gunmetal pairs well with virtually any dial color. Silver or white dials create clean contrast, while gold or rose gold dials produce a refined two-tone effect.
Bracelet: The Royal Oak 37mm bracelet connects via the 20 mm lug width.
What’s Included
- Case body (gunmetal coated 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 Ultrathin in gunmetal occupies the middle ground between the bright silver and full black PVD finishes. At 9.95 mm thick, the V2 platform is one of the thinnest Royal Oak-style cases in Seiko modding, and the gunmetal coating adds a practical benefit: it hides light scratches better than both polished silver and black PVD. The matte gray tone sits close to the underlying steel color, so minor surface marks blend in rather than showing as bright lines (silver) or exposed steel spots (black PVD). For builders who want a darker case without worrying about scratch visibility, gunmetal is the most forgiving dark finish option.
Build Guide
Difficulty: Moderate — standard Seiko mod build. Tools needed: caseback opener, hand press or hand setting tool, stem cutter, movement holder, and rodico.
Key notes: The gunmetal surface is more forgiving than black PVD during assembly, but still benefits from a soft work surface to prevent marking. Exhibition caseback adds 0.35 mm to total thickness. Measure and cut the crown stem carefully before installation.
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 NH35, NH36, NH38, NH70, NH71, and NH72 movements. All standard Seiko NH-family movements share the same case fitment and crown position. The 7S26 and 7S36 are not compatible.
How does gunmetal compare to black PVD?
Gunmetal is a medium gray with a matte, industrial tone. Black PVD is darker and more opaque. The key practical difference is scratch visibility: gunmetal hides marks better because the underlying steel is closer in color to the coating. For a fully dark look, choose the Black PVD case. For the lightest option, choose Silver.
What dial size fits this case?
28.5 mm dials fit directly. This is the standard dial size for Royal Oak 37mm, Nautilus, and other 37 mm Seiko mod platforms. Browse our Royal Oak parts collection for compatible dials, hands, and bracelets.
Is 37 mm too small for a men’s watch?
37 mm is a classic men’s watch size — the same diameter as vintage Rolex and AP Royal Oak models. The 48 mm lug-to-lug measurement ensures strong wrist presence, and the angular bezel design makes the watch appear larger than a round 37 mm case would.
Complete Your Build
The neutral gunmetal pairs with virtually any dial and hand combination:
- Dials: Silver dial · Silver waffle dial · Blue waffle dial
- Skeleton dials: Silver skeleton V2 · Gold skeleton V2 · Rose gold skeleton V2
- Hands: Silver V2 hands · Gold 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
