Seiko SSK039J1
| Movement Type | Automatic with manual winding |
| Power Reserve | Approx. 41 hours |
| Functions | 24-hour hand (dual time display function), Stop second hand function |
| Case Material | Stainless steel |
| Case Thickness | 12.8 mm |
| Case Width | 40.5 mm |
| Case Material | Stainless steel |
| Crystal | Box-shaped Hardlex |
| Water Resistance | 5 bar |
| Weight | 67 g |
| Features | Interchangeable band with quick release spring bars; See-through & Screw case back |