Seiko SPB357J1
| Movement Type | Automatic with manual winding |
| Power Reserve | Approx. 70 hours |
| Functions | Stop second hand function, Date display |
| Case Material | Stainless steel (hard coating) |
| Case Thickness | 13.3 mm |
| Case Width | 43.5 mm |
| Case Material | Stainless steel (hard coating) |
| Crystal | Sapphire crystal |
| Water Resistance | 200m / 660ft diver's |
| Features | Unidirectional rotating bezel; Screw case back |