Grand Seiko Heritage

Ever-Brilliant Steel. A first for Grand Seiko.

The watch pays homage to the famous 44GS from 1967 whose design was the first ever expression of the uniquely Japanese Grand Seiko Style which, ever since, has been its visual signature. It features the high-beat watch powered by the revolutionary Caliber 9SA5, which offers a power reserve of 80 hours thanks to its enhanced energy efficiency.

It is offered as the case and bracelet material is Ever-Brilliant Steel and the movement is specially designed with tempered screws to mark the 55th anniversary of 44GS.

Exterior
Case Material : Ever brilliant steel, Caseback: Ever brilliant steel and sapphire crystal
Glass Material : Box shaped sapphire crystal
Glass Coating : Anti-reflective coating on inner surface
Case size : Diameter 40mm Lug-to-lug 47.2mm Thickness 11.7mm
The perimeter of Band : 195mm
Clasp type : Three-fold clasp with push button release

Movement
Calibre no. : 9SA5 Instructions
Movement Type : Automatic with manual winding
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 : 154.0 g
Other details / Features :
・Date display
・LIMITED EDITION on the case back
・Screw case back
・Screw-down crown
・See-through case back
・Serial number engraved on the case back
・Stop seconds hand function