Features

A high-precision hi-beat 36000 with refined design

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.

The exterior design is a modern take on the stunning 'Grand Seiko Style'—the embodiment of the Grand Seiko design philosophy which was first established for the 44GS in 1967—and features a distortion-free, wide mirror surface throughout.

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.

Specifications

Exterior

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 40.0mm Lug-to-lug 46.2mm Thickness 14.0mm
Band width:	19mm
Clasp type:	Three-fold clasp with push button release
The perimeter of Band:	195mm

Movement

Caliber no.:	9S86 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.

Functions

Water resistance:	10 bar
Magnetic resistance:	4,800 A/m
Other details / Features:	Screw-down crown 37 jewels 24-hour hand (dual time display function) Calendar-linked time difference adjustment function