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 calibre, 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.
|Case back:||See-through & Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|Case size:||Diameter 41.0mm Lug-to-lug 49.0mm Thickness 12.5mm|
|Clasp type:||Three-fold clasp with push button release|
|The perimeter of Band:||195mm|
|Caliber no.:||9R65 Instructions|
|Movement Type:||Spring Drive|
|Power reserve:||Approx. 72 hours(3 days)|
|Accuracy:||±15 seconds per month (±1 second per day)|
|Water resistance:||10 bar|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.