Seiko SRP839J1
| Movement Type | Automatic with manual winding |
| Power Reserve | Approx. 41 hours |
| Functions | Stop second hand function, Date display |
| Case Material | Stainless steel |
| Case Thickness | 11.3 mm |
| Case Width | 33.8 mm |
| Case Material | Stainless steel |
| Crystal | Box-shaped Hardlex |
| Water Resistance | 5 bar |
| Weight | 92 g |
| Features | See-through & Screw case back |