T120.417.17.421.00 TISSOT SEASTAR 1000 CHRONOGRAPHThe Tissot Seastar 1000 Chronograph is the instinctive choice for water sports lovers. Its impressive water resistance up to a pressure of 30 bar (300 m 1000 ft) is combined with the energy of a Swiss made quartz movement. And features all the element required in a useful instrument: screw down crown and case back, unidirectional steel bezel with aluminium ring and highly luminescent material for excellent readability in the dark. ABOUT THE WATCHCASE