40mm Diver Case Stainless Steel Sapphire For Mod SPB149J1 NH34 NH35 NH36 NH70 4R36 Movement RubberStrap
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The 40mm Diver Case is a premium modding platform inspired by the Seiko SPB149J1/SPB143J1 aesthetic. Crafted from solid 316L stainless steel, it features a bubble sapphire crystal with blue anti-reflective coating for superior clarity and vintage appeal. The unidirectional bezel and 100m water resistance make it dive-ready, while compatibility with NH-series movements (NH34, NH35, NH36, etc.) and 28.5mm dials offers unparalleled customization flexibility. Completed with a rubber strap, this case delivers professional durability in a versatile 40mm size.
Specifications
| Parameter | Detail |
|---|---|
| Model Inspiration | Seiko SPB149J1 / SPB143J1 |
| Case Material | Solid 316L Stainless Steel |
| Case Diameter | 40.5 mm |
| Case Thickness | 13.95 mm (sapphire to case back) |
| Bezel Outer Diameter | 38.4 mm |
| Bezel Inner Diameter | 30.2 mm |
| Bezel Thickness | 1.4 mm |
| Glass | Sapphire Crystal (Bubble / Domed) with Blue AR (Anti-Reflective) Coating |
| Crown Position | 3:00 |
| Strap | Rubber Watchband |
| Strap Width | 20 mm |
| Compatible Movements | NH34, NH35, NH36, NH38, NH70, NH72, 4R36 |
| Compatible Dial Size | 28.5 mm |
| Water Resistance | 100 m (10 ATM) |
























































































































