Sport

Specifications

About this reference

The rich fecundity of nature in Japan is central to the inspiration of many Grand Seiko designs. SBGE257, for example, has a dial whose color echoes the rich green of one of the 2,000 types of moss that can be found in Japan. There is something eternal about the moss that thrives at the base of trees or on garden stones, which is why it is so often used in Bonsai create the sense that time passes inexorably onwards. This sense is enhanced by the glide motion of the Spring Drive seconds hand as it moves continuously and silently across the dial. Exterior: 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; Band width: 20mm; Clasp type: Folding clasp with push button release. Movement: Caliber no.: 9R66 Instructions; Movement Type: Spring Drive; Power reserve: Approx. 72 hours(3 days); Accuracy: ±15 seconds per month (±1 second per day). Functions: Water resistance: 20 bar; Magnetic resistance: 4,800 A/m; Weight: 172 g; Other details / Features: Screw-down crown 30 jewels 24-hour hand (dual time display function) Power reserve indicator Calendar-linked time difference adjustment function.