Grand Seiko Heritage Watch (SBGA201G)

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.