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. Wearers of this watch can enjoy a clear view of the movement through the see-through case back.
Exterior
Case Material - Stainless Steel
Caseback - Stainless Steel with Sapphire Crystal
Crystal - Dual-curved Sapphire
Case Size - Diameter 41mm
Bracelet - Stainless Steel
Clasp type - Three-fold clasp with push button release
Movement
Caliber no. - 9R65
Movement Type - Spring Drive
Power reserve - Approx. 72 hours
Accuracy - +1 second per day / +15 seconds per month (average)
Functions
Water resistance - 100m
Magnetic resistance - 4,800 A/m
Other details / Features - Time, Date, Power Reserve Indicator