Tissot Seastar 1000 The Tissot Seastar 1000 merges style and performance without compromising either. The diving inspiration shapes both the appearance and the functionality of this watch. It maintains its performance to a pressure of 30 bar (300m/1'000ft), combining underwater sports and a preference for a sophisticated Swiss timepiece. The diving theme continues through elements such as a unidirectional bezel, a strap with a divers' safety buckle, plus luminescent hands and markings. Water Resistance: Water-resistant up to a pressure of 30 bar (300 m / 1000 ft) Dial Size: 43mm Case: 316L stainless steel case , ceramic bezel ring,Anti-clockwise rotating bezel,See-through case back,Screw-down crown and case back Crystal: Scratch-resistant sapphire crystal Movement: Swiss automatic POWERMATIC 80.111 Power Reserve: power reserve up to 80 hours Functions: NA Strap Details: Rubber , standard buckle.