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Experience precision and durability with the Seiko Prospex SPEEDTIMER HBC003J1, engineered for those who demand reliability. This stunning timepiece features a robust stainless steel case with super hard coating, protecting a sophisticated 6R55 automatic movement that powers through 72 hours on a single wind. The 39.5mm case strikes the perfect balance between presence and wearability, while the curved sapphire crystal and 200m water resistance make it ready for any adventure. LumiBrite-enhanced hands and indexes ensure visibility in any light, and the innovative inner rotating countdown ring adds both functionality and style. Whether you're timing life's moments or simply appreciating fine watchmaking, the Prospex SPEEDTIMER delivers Japanese precision with timeless appeal.
| Caliber Number | 6R55 |
| Movement Type | Automatic with manual winding |
| Accuracy | +25 to -15 seconds per day |
| Power Reserve | Approx. 72 hours(3 days) |
| Case Material | Stainless steel (super hard coating) |
| Case Diameter | 39.5mm |
| Case Thickness | 12.0mm |
| Lug-to-Lug | 44.5mm |
| Crystal | Curved sapphire crystal |
| LumiBrite | On hands and indexes |
| Water Resistance | 200m |
| Clasp Type | Three-fold clasp with push button release |
| Functions | Stop second hand function |
| Features | Inner rotating ring with countdown scale, Screw case back |
