A Spring Drive standard model that has had a strong following ever since its release. It was the first Grand Seiko watch to be powered by a Spring Drive, the third movement mechanism, combining the motive force of a mainspring found in mechanical watches with the high precision of a quartz watch. 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. The watch features a sweeping hand movement, a unique mechanism that differs from mechanical and quartz movement.
It has a maximum 72-hour (3-day) power reserve, and a power reserve indicator on the bottom left of the dial showing the amount in reserve.
The differing expressions offered by the silver watch face and multi-faceted hand needle and index, which change depending on the level of light, help to make this a long-time favorite. Wearers of this watch can enjoy a clear view of the movement through the see-through case back.
Case Material : Stainless steel Glass Material : Dual-curved sapphire crystal Glass Coating : Anti-reflective coating on inner surface Case size : Diameter 41mm × Thickness 12.5mm The perimeter of Band : 195mm Clasp type : Three-fold clasp with push button release
Caliber no. : 9R65 Instructions Movement Type : Spring Drive Power reserve : Approx. 72 hours(3 days) Accuracy : ±1 second per day / ±15 seconds per month (average)
Water resistance : 10 bar Magnetic resistance : Equipped Weight : 150.0 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 second hand function