Grand Seiko Heritage

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 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.

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40.2mm × Thickness 13mm
The perimeter of Band : 195mm
Clasp type : Three-fold clasp with push button release

Movement
Caliber no. : 9S85 Instructions
Movement Type : Automatic with manual winding
Power reserve : Approx. 55 hours
Accuracy : +5 to -3 seconds per day (when static) / +8 to -1 seconds per day (normal usage accuracy)

Functions
Water resistance : 10 bar
Magnetic resistance : Equipped
Weight : 151.0 g
Other details / Features :
・37 jewels
・Case back with lion emblem
・Date display
・Screw case back
・Screw-down crown
・See-through case back
・Stop second hand function