Grand Seiko Sport Drive GMT SBGE275

A Spring Drive Limited Edition to commemorate the 20th anniversary of Grand Seiko’s first GMT watch - 1,500 pcs

It is powered by a specially adjusted movement, Caliber 9R16, which offers an enhanced precision rate of ±10 seconds per month. The Grand Seiko lion emblem is featured in 18K yellow gold on the oscillating weight. The dial has the rugged texture of the snow surface that can be seen in the high mountains that surround the Shinshu Watch Studio in central Japan in late winter and early spring. When the daytime temperatures start to rise and the annual thaw begins, the wind carves a unique pattern as it whips across the melting snow drifts. This ephemeral and beautiful effect is captured on the dial.

EXTERIOR

Case Material:  Stainless steel, Caseback:Stainless steel and sapphire crystal

Glass Material: Dual-curved sapphire crystal

Glass Coating: Anti-reflective coating on inner surface

LumiBrite: LumiBrite on hands, index(es) and bezel

Case size: Diameter 44mm  Lug-to-lug 50.8mm  Thickness 14.9mm

Clasp type: Three-fold clasp with push button release

MOVEMENT

Caliber no.: 9R16 (Caliber 9R16 is specially adjusted Caliber 9R66, to deliver an even higher level of precision)

Movement Type: Spring Drive

Power reserve:  Approx. 72 hours(3 days)

Accuracy: ±10 seconds per month (±0.5 second per day)

FUNCTIONS

Water resistance: 20 bar

Magnetic resistance: 4,800 A/m

Weight: 186.0 g

Other details / Features: 

・24-hour hand (dual time display function)

・30 jewels

・Calendar-linked time difference adjustment function

・LIMITED EDITION on the case back

・Power reserve indicator

・Rotating bezel

・Screw case back

・Screw-down crown

・See-through case back

・Serial number engraved on the case back

·Stop seconds hand functions

SBGE275G