Grand Seiko Heritage Collection Hi Beat Automatic 40.2 MM SS Watch SBGH201
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 Calibre 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.
The movement is ensconced in a beautiful case with the stunning blue second hand contrasting with the white dial as it etches out precise time. 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 delicacy, strength and beauty of the movement can be enjoyed the exhibition case back.
Exterior: Stainless steel
Case back: See-through & Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
Case size: Diameter 40.2mm Lug-to-lug 47.6mm Thickness 13.0mm
Band width: 20mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 195mm
Caliber no.: 9S85 Instructions
Movement Type: Automatic with manual winding
Power reserve: Approx. 55 hours
Mean daily rate: +5 to -3 seconds per day
Mean daily rate is a mean value of daily rates in a condition where the movement before assembly in a case is measured in six positions in a fixed manner under artificially controlled environment for 12 days.
Water resistance: 10 bar
Magnetic resistance: 4,800 A/m
Weight: 151 g
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