Product Description
The Seiko SPB321J1 is a robust automatic diver’s watch designed for reliable performance in and out of the water. Powered by the Caliber 6R35 automatic movement with manual winding capability, it offers an approximate 70-hour power reserve, date display, stop second hand function, and 24 jewels. Built with a stainless steel case with super hard coating, sapphire crystal, LumiBrite hands, indexes and bezel, and 200-meter diver’s water resistance, this timepiece delivers durability, visibility, and dependable everyday function.
SKU: SPB321J1
| Case & Exterior | |
|---|---|
| Case Material | Stainless steel with super hard coating |
| Case Diameter | 45.0 mm |
| Case Thickness | 13.4 mm |
| Glass Material | Sapphire crystal |
| Glass Coating | Anti-reflective coating on inner surface |
| LumiBrite | LumiBrite on hands, indexes, and bezel |
| Bezel | Unidirectional rotating bezel |
| Crown | Screw-down crown |
| Case Back | Screw case back |
| Clasp Type | Three-fold clasp with secure lock, push-button release, and extender |
| Water Resistance | 200 m / 660 ft diver’s |
| Weight | 190.0 g |
| Movement & Features | |
|---|---|
| Caliber Number | 6R35 |
| Movement Type | Automatic with manual winding |
| Power Reserve | Approx. 70 hours |
| Accuracy | +25 to -15 seconds per day |
| Jewels | 24 |
| Functions | Date display Stop second hand function |
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