Features Evolution 9 Collection GMT Titanium 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. Specifications Exterior Exterior: High-intensity titanium Case back: See-through & Screw case back Glass Material: Box shaped sapphire crystal Glass Coating: Anti-reflective coating on inner surface LumiBrite: LumiBrite on hands and index(es) Case size: Diameter 41.0mm Lug-to-lug 48.3mm Thickness 13.9mm Band width: 22mm Clasp type: Three-fold clasp with push button release The perimeter of Band: 192mm 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: 10 bar Magnetic resistance: 4,800 A/m Other details / Features: Screw-down crown Allergy-safe metal 30 jewels 24-hour hand (dual time display function) Power reserve indicator Calendar-linked time difference adjustment function