Citizen Men's AT2180-00L Drive from Citizen Eco-Drive WDR 3.0 Chronograph Watch Citizen Eco-Drive is fueled by light, any light, so it never needs a battery Silver tone stainless steel case with blue dial 60 minute chronograph Drive "D" logo on crown. 12/24 hour time Water resistant to 330 feet (100 M): suitable for snorkeling, as well as swimming, but not diving