Hi-Beat "Mt. Iwate" GMT SBGJ203G

This model incorporates Caliber 9S86, the high-specification movement that delivers the same accuracy (-5 to +3 seconds a day) and the same power reserve (55 hours) as the core Caliber 9S85, while also offering the GMT function that the international traveler needs to ensure that the accuracy of the time shown is not compromised when the time zone is changed. The GMT hand shows the time in the home time zone.

A beautifully delicate and polished finish has been created on the dial, with a 'Mount Iwate 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.

Exterior
Case Material : Stainless steel
Glass Material : Dual-curved sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40mm Lug-to-lug 46.2mm Thickness 14mm
The perimeter of Band : 195mm
Clasp type : Three-fold clasp with push button release

Movement
Calibre no. : 9S86 Instructions
Movement Type : Automatic with manual winding
Power reserve : Approx. 55 hours
Mean daily rate : +5 to -3 seconds per day
Normal usage accuracy : +8 to -1 seconds per day

Functions
Water resistance : 10 bar
Magnetic resistance : 4,800 A/m
Weight : 159.0 g