The Tissot Seastar 1000 merges style and performance without compromising either. With a water resistance of up to 30 bar (300 m/1000 ft.), a screw-down crown, and a case back, it is our ultimate sports watch. The screw-down crown also offers additional protection against knocks. This latest model harnesses the energy of the awesome Powermatic 80 movement with its impressive extended power reserve. This is a high-quality Swiss-made watch you can rely on to keep you safe.