Invicta Men's 5102 Specialty Collection Mechanical Chronograph Watch Mechanical-hand-wind movement with Chronograph functions Stainless-steel case and bracelet with fold-over-clasp with safety Scratch-resistant Sapphire crystal Sub-dials for 60 seconds, 30 minutes, and 12 hour intervals Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving