Seiko SPB171J1
| Movement Type | Automatic with manual winding |
| Power Reserve | Approx. 45 hours |
| Functions | Date hand, Power reserve indicator, Stop second hand function, Date display |
| Case Material | Stainless steel |
| Case Thickness | 14.1 mm |
| Case Width | 40.6 mm |
| Case Material | Stainless steel |
| Crystal | Dual-curved sapphire crystal |
| Water Resistance | 10 bar |
| Features | LIMITED EDITION on the case back; Serial number engraved on the case back; Arita Porcelain Dial; See-through & Screw case back |