Grand Seiko Spring Drive SBGA201

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. Wearers of this watch can enjoy a clear view of the movement through the see-through case back.

Exterior

Case Material - Stainless Steel

Caseback - Stainless Steel with Sapphire Crystal

Crystal - Dual-curved Sapphire 

Case Size - Diameter 41mm

Bracelet - Stainless Steel

Clasp type - Three-fold clasp with push button release

Movement

Caliber no. - 9R65

Movement Type - Spring Drive

Power reserve - Approx. 72 hours

Accuracy - +1 second per day / +15 seconds per month (average)

Functions

Water resistance - 100m

Magnetic resistance - 4,800 A/m

Other details / Features - Time, Date, Power Reserve Indicator