The Tissot Seastar 1000 is the ultimate diving watch, with its high water-resistance up to a pressure of 30 bar (300 m/1000 ft), screw-down crown and case back as well as its unidirectional ceramic bezel. It is fitted with an automatic movement. Buy Now: https://www.romanjewelers.com/watches/tissot/tissot-seastar-1000-chronograph-1.html