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[ 9S Mechanical ]



A Top-Quality 3-Day Automatic Watch for an Active Lifestyle

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 sets it apart from other Grand Seiko watches, with a striking design to catch the attention of onlookers.
The bold crown guard and lugs complement the shine given off by the mirror-finish achieved through multi-faceted Zaratsu polishing.
The case's mirror-finish produces a lustrous shine achieved through multi-faceted Zaratsu polishing.
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 brings an added flair to an active outfit.


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 39.4mm×Thickness 13.5mm
Movement : Caliber 9S65    Instructions
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 : 160.0 g
Remarks : ・Screw down crown
・Screw back
・See-through back
・Jewels: 35