Grand Seiko SBGR251
A 3-day power reserve with lasting quality
The watch has a 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 delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.
Case : Stainless steel
Case back: Stainless steel and sapphire crystal
Glass : High definition dual-curved sapphire crystal Coating : Anti-reflection coating on inner surface Case size : Diameter 37.0mm×Thickness 13.3mm The perimeter of bracelet : 192.0mm Band : Stainless steel
Movement : Caliber 9S65 Driving system : Automatic Power reserve : Approximately 72 hours Accuracy : +5 to -3 seconds per day (when static)
Note: This accuracy is the result of measuring the loss/gain of the time for seventeen days before the inside movements of the watch are put in the case. The measurement has been done in the factory where temperatures or position of the movements are controlled. When the watch is actually worn, the accuracy should be from -1 second/day to +10 seconds/day (-1 second/day to +8 seconds/day for Cal.9S85, 9S86).
Clasp : Three-fold clasp with push button release Water resistance : 10 bar Magnetic resistance : 4800 A/m (60 gauss) Weight : 140.0 g Remarks : Caseback with a lion emblem