Evolution 9 Collection GMT Titanium SBGE283G This “go-anywhere” Spring Drive GMT watch looks as good at the office as it does at home. Made of high-intensity titanium, which is 30% lighter than stainless steel, it is light on the wrist and the joy to wear. And yet it delivers a powerful combination of practical functions. The GMT hand allows a second time zone to be read at a glance. The 9R66 caliber delivers a power reserve of three days and, like all Spring Drive watches, the seconds hand moves in perfect, silent glide motion like time itself. With 10 bar water resistance, a see-through case back, an anti-reflective coating on the inner surface of the sapphire crystal, this is a GMT watch for every occasion. Exterior Case Material High-intensity titanium Glass Material Box shaped sapphire crystal Glass Coating Anti-reflective coating on inner surface LumiBrite Lumibrite on hands and index(es) Case size Diameter 41mm Lug-to-lug 48.3mm Thickness 13.9mm The perimeter of Band 192mm Clasp type Three-fold clasp with push button release Movement Caliber no. 9R66 Movement Type Spring Drive Power reserve Approx. 72 hours(3 days) Accuracy ±15 seconds per month (±1 second per day) Functions Water resistance 10 bar Magnetic resistance 4,800 A/m Weight 122.0 g Other details / Features 24-hour hand (dual time display function) 30 jewels Allergy-safe metal Calendar-linked time difference adjustment function Case back with lion emblem Date display Power reserve indicator Screw case back Screw-down crown See-through case back Stop second hand function