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SBGE255G / GRAND SEIKO SPORT / GRAND SEIKO |
| EXTERIOR |
| Case Material - Stainless Steel |
| Case Back - Screw case back |
| Glass Material - Dual-curved sapphire crystal |
| Glass Coating - Anti-reflective coating on inner surface |
| Case Size - Diameter 40.5mm, Lug-to-lug 48.7mm, Thickness 14.7mm |
| Band width - 20mm |
| Clasp type - Three-fold clasp with push button release |
| MOVEMENT |
| Caliber - 9R66 |
| Movement Type - Spring Drive |
| Power Reserve - 72 hours |
| Accuracy - ±15 seconds per month (±1 second per day) |
| FUNCTIONS |
|
Water Resistance - 20 bar |
| Magnetic Resistance - 4800 A/m |
| Weight - 172 g |
| Other Details/Features: Screw-down crown, 30 jewels, 24-hour hand (dual time display function), Power reserve indicator, Calendar-linked time difference adjustment function |