Momentum Men's 1M-SP04B1 Chronologic F3 Titanium Ana-Digi Black Rubber Bracelet Watch Precise Swiss-quartz movement Scratch-resistant-sapphire crystal Case diameter: 44.5 mm Titanium case; black dial; perpetual-calendar functions; chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving