Swiss Legend Men's 40025-BB-BMOP Throttle Chronograph Black Ion-Plated Watch Precise Swiss-quartz movement Scratch-resistant Sapphire crystal; black Ion plated stainless steel case and band Chronograph functions with 60 Second, 30 Minute and 1/10th of a Second Sub-dials; date function Luminous hands; black carbon fiber bezel; screw down crown Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving