Grand Seiko Heritage 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.

Specifications
Case Material: Stainless Steel
Case Size: Diameter 41mm  Lug-to-lug 49mm  Thickness 12.5mm
Band Perimeter: 195mm
Clasp Type: Three-fold clasp with push button release
Movement Type: Spring Drive

SBGA203