Calibre 9S63 is a significant addition to the ever growing Grand Seiko family of movements. It has been eight years since the last manual-winding mechanical calibre in Grand Seiko and it has been worth the wait. Calibre 9S63 offers a small seconds hand at the nine o’clock position and a power reserve indicator at three o’clock. Calibre 9S63 has a power reserve of 72 hours and delivers an accuracy rate of +5 to -3 seconds a day.
A classic combination of a clean white dial and black crocodile strap create a perfect harmony. A curved dial with the hand-bent minute and power reserve hand gives the watch a classic look.
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 39.0mm Lug-to-lug 44.0mm Thickness 11.6mm
Band width: 19mm
Band Material: Crocodile leather
Clasp type: Three-fold clasp with push button release
Caliber no.: 9S63 Instructions
Movement Type: Manual winding
Power reserve: Approx. 72 hours (3 days)
Mean daily rate: +5 to -3 seconds per day
Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
Normal usage accuracy: +10 to -1 seconds per day
Water resistance: Splash Resistant
Magnetic resistance: 4,800 A/m
Weight: 70 g
Other details / Features:
Equipped with small seconds hand
Power reserve indicator