The tissot seastar 1000 is the ultimate diving watch, and a great-looking sport option out of the water as well. The 45. 5mm stainless steel case features black pvd details, a black dial, super-luminova® hands and markers, date display and three chrono dials dive-ready with an aluminium bezel ring, screw-down crown and caseback, anti-clockwise rotating bezel, screw-down pushers and a scratch-resistant sapphire crystal with double-sided antireflective coating swiss quartz movement with battery end-of-life indicator an interchangeable blue and black textile strap secures with a buckle clasp water-resistant to 300 meters