Spring Drive SBGA375G

Powered by Grand Seiko’s unique Spring Drive calibre, this model features 44GS Contemporary Design, a contemporary take on the design of the 44GS, which was launched in 1967 and formed the cornerstone of the Grand Seiko design philosophy, Grand Seiko Style.
The dial of midnight blue as close to black as possible, coupled with the elegantly radiant case achieved through Zaratsu polishing, delivers both refined taste and high visibility at the same time.
The movement of the second hand over the dial further highlights Grand Seiko’s original glide motion, reflecting the natural and continuous flow of time itself. It has a 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial.

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 12.5mm
The perimeter of Band : 197mm
Clasp type : Three-fold clasp with push button release

Movement
Calibre no. : 9R65 Instructions
Movement Type : Spring Drive
Power reserve : Approx. 72 hours(3 days)
Accuracy : ±15 seconds per month (±1 second per day)

Functions
Water resistance : 10 bar
Magnetic resistance : 4,800 A/m
Weight : 148.0 g

Other details / Features :
・30 jewels
・Case back with lion emblem
・Date display
・Power reserve display
・Screw case back
・Screw-down crown
・See-through case back
・Stop seconds hand function