Tissot Seastar 2000 Professional Powermatic Swiss Men's Watch-T120.607.11.041.00 Tissot Seastar 2000 Professional T120.607.11.041.00-Professional helmet for diver, featuring an automatic helium escape valve. Most extreme conditions of water, high-performance chronometer. At least 300m of resistance. The model comes with a stainless steel case 43 m