A Spring Drive GMT for the next generation

Equipped with a GMT hand, this watch features Grand Seiko’s unique Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch. The second hand movement over the black dial, further highlights a glide motion that reflects the natural and continuous flow of time itself.

The high-quality sapphire glass on the surface of the ring provides a strong sense of transparency, breadth and depth.

Exterior

Case Material : Stainless steel

Glass Material : Dual-curved sapphire crystal

Glass Coating : Anti-reflective coating on inner surface

Lumi Brite : Lumibrite on hands and indexs

Case size : Diameter 44mm × Thickness 14.7mm

The perimeter of Band : 191mm

Clasp type : Three-fold clasp with push button release

Functions

Water resistance : 20 bar

Magnetic resistance : Equipped

Weight : 177.0 g

Other details / Features :

24-hour hand (dual time display function)
30 jewels
Calendar-linked time difference adjustment function
Case back with lion emblem
Date display
Rotating bezel (24-hour display)
Power reserve display
Screw case back
Screw-down crown
Stop seconds hand function

Movement

Caliber no. : 9R66 Instructions

Movement Type : Spring Drive

Power reserve : Approx. 72 hours(3 days)

Accuracy : ±1 second per day / ±15 seconds per month (average)

SBGE201G - Sports Spring Drive GMT