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.

The black dial and metal band create a perfect harmony. A curved dial with the hand-bent minute and power reserve hand gives the watch a classic look.

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 39mm × Thickness 11.6mm
Clasp type : Three-fold clasp with push button release

Movement
Movement
Caliber no. : 9S63 Instructions
Movement Type : Manual winding
Power reserve : Approx. 72 hours(3 days)
Accuracy : +5 to -3 seconds per day (when static) / +10 to -1 seconds per day (normal usage accuracy)

Functions
Water resistance : Splash Resistant
Magnetic resistance : Equipped
Weight : 124.0 g
Other details / Features :
・33 jewels
・Case back with lion emblem
・Equipped with small seconds hand
・Power reserve display
・Screw case back
・See-through case back
・Stop second hand function