A new manual-winding calibre. A new slim profile.
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.
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.
|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|
|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
|Normal usage accuracy:||+10 to -1 seconds per day|
|Water resistance:||Splash Resistant|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.