Tissot wanted to broaden its boundaries and decided to add a line dedicated to sea professionals to the two Seastar Auto and Chrono collections. In fact, the Tissot Seastar 2000 professional collection was born from this idea. The product meets all the needs of a professional expert. - Water resistant to 2000 feet (600 meters) - helium valve - ISO 6425 certification for professional divers. These features are accompanied by an automatic caliber with long-lasting power reserve, ceramic bezel and hands with super-luminova.