Tissot Watch Seastar 1000 Powermatic 80 T1204071109100. The Tissot watches Seastar 1000 Chronograph is the instinctive choice for water sports lovers. Its impressive water-resistance up to a pressure of 300m 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.