$4700 FEATURESA Simple and Compact Spring Drive, at its most elegantThis simply finished model with no crown guard is driven by Grand Seiko’s unique Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch.With a case size under 40mm, the watch adorns the wrist with an elegant subtlety.The dial makes use of Grand Seiko technology to effect a deep silver finish, giving off a radial sheen that projects a lustrous sense of depth. The slender shape of the raised indices complements the sharpness of the power reserve indicator, while the clear expanse of the dial combines with the smooth movements of Grand Seiko's original second hand. SPECIFICATIONSCase										Case :			Stainless steel											Glass :			High definition dual-curved sapphire crystal											Coating :			Anti-reflection coating on inner surface											Lumi Brite :			-											Case size :			Diameter 39.0mm×Thickness 12.3mm							Movement						Movement :			Caliber 9R65    Instructions 											Driving system :			Spring Drive											Power reserve :			Approximately 72 hours											Accuracy :			±1 per day (±15 seconds per month)			Functions/Specifications										Clasp :			Three-fold clasp with push button release											Water resistance :			10 bar											Magnetic resistance :			4800 A/m (60 gauss)											Weight :			148.0 g											Remarks :			・Screw down crown			・Screw back			 3 YEAR WARRANTY AUTHORIZED DEALER

Grand Seiko Spring Drive SBGA283

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