Grand Seiko Sport Collection 9R Spring Drive GMT Green Dial

SBGE257

Grand Seiko SBGE257 is the Spring Drive GMT for the next generation. 

The Grand Seiko Sport Collection SBGE257 is equipped with a GMT hand, which features Grand Seiko’s unique 9R66 Spring Drive caliber, which combines the motive force of a mainspring with the high precision of a quartz watch. Housed in a water-resistant stainless steel case with ceramic bezel, a 24-hour GMT hand and Lumibrite indices for exceptional precision and legibility complemented by the smooth motion glide of Spring Drive.

SBGE257 Specification:

Movement 
Spring Drive GMT
Caliber: 9R66 
Accuracy: ±1 second per day (±15 seconds per month)
Power Reserve: 72 hours
Jewel: 30

Exterior
Case Material: Stainless steel with ceramic bezel
Glass Material: Dual-curved sapphire crystal
Glass Coating: Anti-Reflective coating on the inner surface
LumiBrite: Lumibrite on hands and indexes
Dial Color: Green
Case size: Thickness 14.7 mm, Diameter 40.5 mm
Clasp Type: Three-fold clasp with push button release


Other Details 
Water Resistance: 20Bar
Magnetic resistance: Magnetic resistance
Power reserve display function, Dual time function with 24-hour display
Functions: Hours, minutes, seconds, GMT
24-hour hand (dual time display function)
Calendar-linked time difference adjustment function
Case back with lion emblem
Date display
Power reserve display
Rotating bezel (24-hour display)
Screw case back
Screw-down crown
Stop second-hand function

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