A high-precision mechanical watch that provides a glimpse of the future
This Caliber 9S86 model incorporates a GMT function into the existing functions of the automatic mechanical Hi-Beat 36000 movement, with superb accuracy in everyday use due to its high resistance to external shock.
The 24-hour scale and blue steel GMT hand allow the user to display the time in a different time zone.
The exterior design is a modern take on the stunning 'Seiko Style'—the embodiment of the Grand Seiko design philosophy which was first established for the 44GS in 1967—and features a distortion-free, wide mirror surface throughout.
A beautifully delicate and polished finish has been created on the dial, with a 'Mount Iwate pattern', expressing the magnificence of the Mount Iwate mountainside visible from the Shizuku-Ishi Watch Studio where Grand Seiko mechanical watches are made.
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 40.0mm×Thickness 14.0mm
Movement : Caliber 9S86 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 : 159.0 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