Caliber 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 caliber in Grand Seiko and it has been worth the wait. Caliber 9S63 offers a small seconds hand at the nine o’clock position and a power reserve indicator at three o’clock. Caliber 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 brown 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
Exterior: 18k yellow gold
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
Movement
Caliber no.: 9S63 Instructions
Movement Type: Manual winding
Power reserve: Approx. 72 hours (3 days)
Mean daily rate: +5 to -3 seconds per day
Functions
Water resistance: Splash Resistant
Magnetic resistance: 4,800 A/m
Other details / Features: