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This is a high-quality 316L stainless steel watch case kit designed for watch modders, hobbyists, and builders. It is compatible with a wide range of popular automatic movements, making it perfect for custom builds, repairs, or upgrades in the style of iconic dive and GMT watches.
Case Material: Solid 316L Stainless Steel
Case Diameter: 40mm
Case Thickness: 13.2mm (including crystal)
Crystal: Sapphire Glass (Scratch-resistant)
Bezel Type: Sloping Unidirectional Rotating Bezel (120 Clicks)
Bezel Dimensions: 38.0mm (outer) x 30.6mm (inner - for insert)
Lug Width (Strap Size): 20mm
Lug to Lug:48mm
Water Resistance: 200 Meters (20 ATM)
Clasp: Stainless Steel Slide Buckle (Deployant Folding Clasp)
This case is engineered to fit the most common automatic movements. Please match your dial to the movement.
| Compatible Movement Families | Required Dial Diameter | Notes |
|---|---|---|
| Seiko NH Series (NH35, NH36, NH34 GMT, NH38, NH72) | 28.5mm - 29.0mm | Best fit is 28.5mm. NH34 is for GMT builds. |
| Miyota 8215 / 8205 | 28.5mm | Miyota 8215 and 8205 are directly interchangeable. |
| Swiss ETA 2824-2 & Clones (SW200, PT5000, ST2130, etc.) | 28.5mm | All ETA 2824-2 clone movements share the same dimensions. |
Strap Finish:
Option A: Full Brushed Finish
Option B: Center Polished with Brushed Sides
Case Back Style:
Option A: Solid 316L Stainless Steel Case Back
Option B: Transparent Exhibition Glass Case Back (to view the movement)







Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
US$40
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