SBGH205

[ 9S Mechanical ]

  • FEATURES
  • SPECIFICATIONS

FEATURES

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, with high precision parts created using sophisticated modern technology assembled with skills with skills honed over the many decades of Grand Seiko’s watchmaking.
Innovations to the precision controlling mainspring, the hairspring, and the escapement mean that the 9S Mechanical is not simply a revival of the 10-beat movement of the past, but an entirely new incarnation of this high-precision movement.
In every detail, it is faithful to the ‘Grand Seiko Style’, the embodiment of the Grand Seiko design philosophy which started with the 44GS.
The black dial creates a strong impression with its ‘Mount Iwate pattern’, a delicate and beautiful radial pattern, inspired by the many-ridged contours of the Mt. Iwate, the mountain that is visible through the windows of the Shizuku-Ishi Watch Studio where Grand Seiko mechanical watches are made.
The delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.

SPECIFICATIONS

Case
Case : Stainless steel
Case back: Stainless steel and sapphire crystal
Glass : High definition dual-curved sapphire crystal
Coating : Anti-reflection coating on inner surface
Case size : Diameter 40.2mm×Thickness 13.0mm
The perimeter of bracelet : 195.0mm
Band : In 1968, Grand Seiko introduced Japan’s first auto
Movement
Movement : Caliber 9S85    Instructions
Driving system : Automatic
Power reserve : Approximately 55 hours
Accuracy : +5 to -3 seconds per day (when static)
Note: 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).
Functions/Specifications
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
・Screw back
・See-through back
・Jewels: 37