Seiko Prospex SPB239J1
With contemporary styling and upgraded specifications, this new reinterpretation reflects the look of the 1965 original, but with a sleeker and thinner case designed to fit more comfortably on the wrist.
Movement
| Caliber Number | 6R35 |
| Movement Type | Automatic with manual winding |
| Precision | +25 to -15 seconds per day |
| Power reserve | Approx. 70 hours |
| Jewels | 24 |
| Functions |
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Case/Band
| Case Material | Stainless steel (super hard coating) |
| Case Size |
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| Crystal | Curved sapphire crystal |
| Crystal Coating | Anti-reflective coating on inner surface |
| LumiBrite | LumiBrite on hands, indexes and bezel |
| Band Material | Polyester |
| Distance between lugs | 20mm |
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Other Details
Weight 106.0g Features - Screw case back
- Unidirectional rotating bezel
- Screw-down crown
- An additional polyester strap is included