Seastar 1000 43mm T1204071104103

The Tissot Seastar 1000 merges style and performance without compromising either. With its water resistance up to 30 bar (300 m/1000 ft), screw-down crown and case back, it is the ultimate watersport watch, now combined with the energy of the Powermatic 80 movement offering up to 80 hours of power reserve when most automatic movements boast around 40 hours. An automatic watch is powered by the energy of the person who wears it. Wrist movement enables the mechanism to run. The Powermatic 80 movement boasts 80 hours of power reserve, which is enough to continue telling time accurately even if the watch is not worn for three days. It is an innovative movement that outperforms the competition, whose movements generally provide 1.5 days of power reserve*.

Source: Tissot website, last updated Mar 2026