Citizen Men's JT3030-58L Chronograph Stainless Steel Watch Light powered Eco-Drive Japanese-quartz movement; Charges in natural sunlight or indoor light Durable, hardened mineral crystal Case diameter: 43 mm Stainless-steel case; Blue dial; Day-date-and-month functions; Chronograph functions Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving