29665188939, SBGA203
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. Exterior: Case Material: Stainless Steel Glass Material: Dual-curved sapphire crystal Glass Coating: Anti-reflective coating on inner surface Case size: Diameter 41mm x Thickness 12.5mm The perimeter of Band: 195mm Clasp type: Three-fold clasp with push button release Movement: Caliber No: 9R65 Movement Type: Spring Drive Power reserve : Approx. 72 hours(3 days) Accuracy : +/-1 second per day / +/-15 seconds per month (average) Features: Water resistance: 10 bar Magnetic resistance: Equipped Weight: 150.0 g 30 jewels Case back with lion emblem Date display Power reserve display Screw case back Screw-down crown Stop seconds hand function See-through case back Grand Seiko Style #: SBGA203