The automatic choice for real divers. With its high water-resistance up to a pressure of 30 bar (300 m/1000 ft), screw-down crown and caseback as well as its unidirectional ceramic bezel, the Tissot Seastar 1000 Silicium is the ultimate diving watch, now combined with the energy of the Powermatic 80 movement upgraded with a Silicon Balance Spring, making this watch even more appropriate for water sports activities.