Grand Seiko Spring Drive Mens Watch SBGA375G Powered by Grand Seiko’s unique Spring Drive caliber, this model features 44GS Contemporary Design, a contemporary take on the design of the 44GS, which was launched in 1967 and formed the cornerstone of the Grand Seiko design philosophy, Grand Seiko Style. The dial of midnight blue as close to black as possible, coupled with the elegantly radiant case achieved through Zaratsu polishing, delivers both refined taste and high visibility at the same time. Exterior Exterior: Stainless steel Case back: See-through & Screw case back Glass Material: Dual-curved sapphire crystal Glass Coating: Anti-reflective coating on inner surface Case size: Diameter 40.0mm Lug-to-lug 46.2mm Thickness 12.5mm Band width: 19mm Clasp type: Three-fold clasp with push button release The perimeter of Band: 197mm Movement Caliber no.: 9R65 Movement Type: Spring Drive Power reserve: Approx. 72 hours(3 days) Accuracy: ±15 seconds per month (±1 second per day) Functions Water resistance: 10 bar Magnetic resistance: 4,800 A/m Other details / Features: Screw-down crown 30 jewels Power reserve indicator
