72 hour power reserve
With an upgraded Calibre 9S55 mechanical movement, this watch typifies the high quality in the Grand Seiko collection.
The watch has a 3-day power reserve and combines the latest in hairspring technology with an escapement developed through the MEMS technology to achieve high accuracy and stability when worn.
The case's mirror finish has the lustrous shine that only multi-faceted Zaratsu polishing can achieve.
The delicacy, strength and beauty of the movement can be enjoyed through
the exhibition case back.
|Case back:||See-through & Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 39.4mm Lug-to-lug 46.8mm Thickness 13.5mm|
|Clasp type:||Three-fold clasp with push button release|
|The perimeter of Band:||206mm|
|Caliber no.:||9S65 Instructions|
|Movement Type:||Automatic with 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:||10 bar|
|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 Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.