Spring Drive SBGA373G

Powered by Grand Seiko’s unique Spring Drive caliber, 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 combination of a tempered steel hand and a dial with a thick, silver radiant finish that makes use of Grand Seiko’s special technology delivers simple and sophisticated quality that wearers can enjoy at any age, coupled with the elegantly radiant case achieved through Zaratsu polishing. The movement of the blue steel second hand over the dial further highlights Grand Seiko’s original glide motion, reflecting the natural and continuous flow of time itself.

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

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