A Standard-Setting 3-Day Automatic Watch with Lasting Quality
With an upgraded Caliber 9S55 mechanical movement, this watch typifies the standard of high quality in the Grand Seiko collection.
The watch boasts a maximum 3-day power reserve and combines the latest in hairspring technology with an escapement (escape wheel and pallet) developed through Seiko's MEMS technology to achieve high accuracy and stability when worn.
The exterior exudes a strong sense of presence and a tireless luxury befitting the Grand Seiko standard.
One can enjoy watching the mechanical movement exquisitely mark out the time through the transparent case back.
This model pushes the performance and quality of both the movement and the exterior to the limit, and is certain to tell time and define moments for its wearer for a lifetime.
Case : Stainless steel Case back: Stainless steel and sapphire crystal Glass : High definition dual-curved sapphire crystal Coating : Anti-reflection coating on inner surface Lumi Brite : - Case size : Diameter 37.0mm×Thickness 13.3mm
Movement : Caliber 9S65 Driving system : Automatic with manual winding mechanism Power reserve : Approximately 72 hours Accuracy : +5 to -3 seconds per day (under a static use) ; This accuracy is the result of measuring the loss/gain of the time for seventeen days before the inside movements of the watch are put in the case. The measurement has been done in the factory where temperatures or position of the movements are controlled. When the watch is actually worn, the accuracy should be from -1 second/day to +10 seconds/day (-1 second/day to +8 seconds/day for Cal.9S85, 9S86).
Clasp : Three-fold clasp with push button release Water resistance : 10 bar Magnetic resistance : 4800 A/m (60 gauss) Weight : 140.0 g Remarks : ・Screw back
The movement at the heart of Grand Seiko
Combining cutting-edge technology and time-tested craftsmanship as one of the world's true watch manufactures
Capturing and refining the very essence of a watch
A legacy of innovation beginning with the first Grand Seiko in 1960