Safety first: water resistance up to 30 bar (300 m/1000 ft), a screw-down crown and caseback for a better protection against external influences such as shocks. This watch is also contains a unidirectional ceramic diver's bezel and a sapphire crystal glass that is highly scratch-resistant.
Discover the Tissot Seastar 1000 Professional, a professional diver's watch. The ISO 6425 norm certifies a use of watch in deep diving conditions. For saturation diving,a helium valve is integrated in the patented bezel lock system, also allowing to completely lock the grippy bezel during the dive.