9R Spring Drive
Hours, minutes, seconds, date
Diameter 41.0mm×Thickness 12.5mm, water resistant 10 bar
Grand Seiko SBGA203
A Long-selling Simple Standard Spring Drive Model
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.
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.