SBGR309G
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Grand Seiko 9S Mechanical SBGR309G
The watch has a maximum 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn. The exterior exudes a strong sense of presence and a tireless luxury befitting the Grand Seiko standard. The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.
| Exterior: | Stainless steel |
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| Case back: | See-through & Screw case back |
| Glass Material: | Dual-curved sapphire crystal |
| Glass Coating: | Anti-reflective coating on inner surface |
| Case size: | Diameter 42.0mm Lug-to-lug 47.9mm Thickness 13.1mm |
| Band width: | 21mm |
| Clasp type: | Three-fold clasp with push button release |
| The perimeter of Band: | 205mm |
| Caliber no.: | 9S68 |
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| Movement Type: | Automatic with manual winding |
| Power reserve: | Approx. 72 hours(3 days) |
| Mean daily rate: | +5 to -3 seconds per day |
| Water resistance: | 10 bar |
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| Magnetic resistance: | 4,800 A/m |
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