A Spring Drive watch that has had a strong following ever since its release. It was the first Grand Seiko watch to be powered by Spring Drive, Grand Seiko’s unique caliber, which combines the motive force of a mainspring with the high precision of a quartz watch.
In Spring Drive, the second hand moves in perfect glide motion, reflecting the natural and continuous flow of time itself.
It has a 72-hour power reserve, and a power reserve indicator on the bottom left of the dial.
The watch face and multi-faceted hands and hour markers seem to change depending on the angle and amount of light, giving this watch its eternal appeal. Wearers of this watch can enjoy a clear view of the movement through the see-through case back.
Reference Number - SBGA203
Case Material - Stainless steel
Case Back - See-through and screw case back
Glass Material - Dual-curved sapphire crystal
Glass Coating - Anti-reflective coating on inner surface
Case Size - Diameter 41mm, Lug-to-Lug 49mm, Thickness 12.5mm
Band Width - 20mm
The Perimeter of Band - 195mm
Clasp Type - Three-fold clasp with push button release
Caliber no. - 9R65
Movement Type - Spring Drive
Power reserve - Approx. 72 hours
Accuracy - +15 seconds per month (+1 second per day)
Water resistance - 10 bar
Magnetic Resistance - 4,800 A/m
Other details / Features - Screw-down crown, 30 jewels, power reserve indicator