Nautica Men's 'NST 600 Chrono Carving Color Sport' Quartz Stainless Steel and Silicone Casual Watch, Color:Blue (Model: N19604G) Quartz movement Case diameter: 46 MM Stainless steel case Durable mineral crystal protects watch from scratches Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving