A long-cherished and simple Spring Drive 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.
Exterior
- Case Material : Stainless steel
- Glass Material : Dual-curved sapphire
- 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
Movement
- 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)
Functions
- 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 seconds hand function