Description
Spring Drive GMT model with a dial reminiscent of the dynamic cliffs of the Hotaka Mountains
Grand Seiko Spring Drive watches are handcrafted by the skilled artisans of the Shinshu Watch Studio. The workshop, located in the city of Shiojiri, looks out upon the Hotaka Mountains, which were born long ago from volcanic activity that reshaped the continent and pushed the peaks up from beneath. Powerful winds and snow sculpted the faces of the cliffs over many long years to create a dynamic mountain range that is honored by this powerful sport watch.
TECHNICAL DATA
EXTERIOR
Exterior: Stainless steel
Case back: Screw case back
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-reflective coating on inner surface
LumiBrite: LumiBrite on hands, index(es) and bezel
Case size: Diameter 44.0mm Lug-to-lug 50.8mm Thickness 14.7mm
Band width: 21mm
Clasp type: Three-fold clasp with push button release
The perimeter of Band: 194mm
MOVEMENT
Caliber no.: 9R66 Instructions
Movement Type: Spring Drive
Power reserve: Approx. 72 hours(3 days)
Accuracy: ±15 seconds per month (±1 second per day)
FUNCTION
Water resistance: 20 bar
Magnetic resistance: 4,800 A/m
Weight: 186 g
Other details / Features:
Rotating bezel (24-hour display)
Screw-down crown
30 jewels
24-hour hand (dual time display function)
Power reserve indicator
Calendar-linked time difference adjustment function
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