The tissot seastar 1000 is the ultimate diving watch, with its high water-resistance up to a pressure of 30 bar (300 m/1000 ft), screw-down crown and caseback as well as its unidirectional ceramic bezel. Other features of this swiss automatic timepiece include a scratch-resistant sapphire crystal, black dial and stainless steel case and bracelet. The watch secures with a fold-over clasp with safety and diver extension. Style # t1204071105100