Case Material : Stainless steel with ceramic bezel Glass Material : Dual-curved sapphire crystal Glass Coating : Anti-reflective coating on inner surface LumiBrite : LumiBrite on hands and indexes 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 Movement Type : Spring Drive Power reserve : Approx. 72 hours(3 days) Accuracy : ±1 second per day / ±15 seconds per month (average)
Water resistance : 20 bar Magnetic resistance : Equipped Weight : 172.0 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
- ・Power reserve display
- ・Screw case back
- ・Screw-down crown
- ・Stop seconds hand function
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.
From strength comes durability
The Grand Seiko Sport Collection offers timepieces designed for a wide range of activities but they all have in common an inner and outer strength that makes for lasting durability. Take, for example, SBGE253. Its bezel is ceramic and therefore resistant to scratches. The crown is tucked away at the 4 o'clock position and so does not impair the movement of the wrist. It is water resistant to 20 bar and both the crown and the case back are secured by screw-down mechanisms. The watch is powered by a Spring Drive movement that is particularly resistant to temperature change and shock. In every detail, this is the sports watch par excellence.