A complete and Beautifully Formed Mechanical Hi-Beat 36000
In 1968, Grand Seiko introduced Japan’s first automatic 10-beat watch (61GS) to the world.
In 2009, 10-beat Caliber 9S85 surpassed the original, encapsulating the past 41 years with high precision parts created using sophisticated modern technology assembled using skills inherited from the masters.
Innovations to the precision controlling mainspring, the hairspring, and the escapement (escape wheel and pallet) mean that the 9S Mechanical is not simply a revival of the 10-beat movement of the past, but its rebirth as a high-precision movement.
The accurate workings are ensconced in a beautiful exterior with the stunning blue second hand contrasting with the white dial as it etches out precise time, making it a natural successor to the ‘Seiko Style’, the embodiment of the Grand Seiko design philosophy which started with the 44GS.
The wearer can also enjoy watching the mechanical movement exquisitely mark out time through the transparent case back.
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 40.2mm×Thickness 13.0mm
Movement : Caliber 9S85 Driving system : Automatic with manual winding mechanism Power reserve : Approximately 55 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 : 151.0 g Remarks : ・Screw down crown
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