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
Exterior: Stainless steel case back: stainless steel and sapphire glass
Back cover: Screw see-through back cover
Glass material: dual curve sapphire
Coating: Inner non-reflective coating
Case size: Width 40.0mm Length 46.2mm Thickness 14.0mm
Bandwidth: 19mm
Clasp: One-push three-fold method
Arm circumference length (longest): 193mm
Movement
Movement: 9S86
Driving method: Mechanical automatic winding (with manual winding)
Drive period: Lasts about 55 hours at maximum winding
Accuracy: Average daily difference +5 seconds to -3 seconds
Functions
Waterproofing: Reinforced waterproof for everyday life (10 bar)
Antimagnetic: can be
Weight: 158g
Other: ・37 stones ・24-hour hand (dual time display function)
・Calendar interlocking time difference correction function ・Screw lock type crown
