Grand Seiko - Sport Spring Drive GMT 40.5mm SBGE257
Item Code: 7010
Price: $9,300.00
Minimum : 1
Maximum : 0
Equipped with a GMT hand, this watch features Grand Seiko’s unique Spring Drive calibre, which combines the motive force of a mainspring with the high precision of a quartz watch.
Housed in a water-resistant stainless steel case with ceramic bezel, a 24-hour GMT hand and Lumibrite indices for exceptional precision and legibility complemented by the smooth motion glide of Spring Drive.
| Exterior | Stainless steel with ceramic bezel |
| Case back | Screw case back |
| Glass Material | Dual-curved sapphire crystal |
| Glass Coating | Anti-reflective coating on inner surface |
| LumiBrite | Lumibrite on hands and index(es) |
| 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 |
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| Caliber no. | 9R66 |
| Movement Type | Spring Drive |
Power reserve
| Approx. 72 hours(3 days) |
| Accuracy | ±15 seconds per month (±1 second per day) |
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| Water resistance | 20 bar |
| Magnetic resistance | 4,800 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
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