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.
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.
|Exterior:||Stainless steel with ceramic bezel|
|Case back:||Screw case back|
|Glass Material:||Dual-curved sapphire crystal|
|Glass Coating:||Anti-reflective coating on inner surface|
|LumiBrite:||Lumibrite on hands and index(es)|
|Case size:||Diameter 40.5mm Lug-to-lug 48.7mm Thickness 14.7mm|
|Clasp type:||Three-fold clasp with push button release|
|Caliber no.:||9R66 Instructions|
|Movement Type:||Spring Drive|
|Power reserve:||Approx. 72 hours(3 days)|
|Accuracy:||±15 seconds per month (±1 second per day)|
|Water resistance:||20 bar|
|Magnetic resistance:||4,800 A/m|
|Other details / Features:||
The tranquil hours of summer
Of course, a great watch must measure time but it should also help you to savour it. In the heat of high summer in Japan, many people like to relax quietly with nature and enjoy the beauty of hydrangea petals floating on water. There could be no better companion at such moments than a Grand Seiko Spring Drive watch, whose hands sweep silently and continuously across the dial in a perfect reflection of the true nature of time. SBGE255 is also 20 bar water resistant, has a zirconia ceramic bezel and offers a GMT hand so that it is as practical and versatile as it is a delight to behold.
The three movements at the heart of Grand Seiko
One of the world's foremost mechanical movements, the culmination of high-precision micro-engineering and the attention to detail of Grand Seiko's expert watchmakers.
Spring Drive is a unique movement that delivers one-second-a-day precision, using just the power of a mainspring.