Boutique Exclusive. Only available at the Grand
Seiko Boutique

The blue dial—which features a 'Mount Iwate pattern' showing the ridgelines of the magnificent mountain visible from the Shizukuishi Watch Studio where all Grand Seiko mechanical timepieces are made— expresses the beauty of winter mountain scenery emerging faintly through moonlight reflected on snow.

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.

Exterior

Case Material : Stainless steel

Glass Material : Dual-curved sapphire crystal

Glass Coating : Anti-reflective coating on inner surface

Case size : Diameter 40mm × Thickness 14mm

The perimeter of Band : 193mm

Clasp type : Three-fold clasp with push button release

Functions

Water resistance : 10 bar

Magnetic resistance : Equipped

Other details / Features :

24-hour hand (dual time display function)
37 jewels
Calendar-linked time difference adjustment function
Date display
Screw case back
Screw-down crown
See-through case back
Stop seconds hand function

Movement

Caliber no. : 9S86 Instructions

Movement Type : Automatic with manual winding capacity

Power reserve : Approx. 55 hours

Accuracy : +5 to -3 seconds per day (when static)

Boutique Exclusive. Only available at the Grand Seiko Boutique

Exterior

Functions

Movement

Boutique Exclusive. Only available at the Grand
Seiko Boutique

SBGJ235 Hi-Beat 36000 Automatic with Mount Iwate Pattern Dial