Citizen Men's AT2187-51E Drive from Citizen Eco-Drive WDR 3.0 Chronograph Watch Imported Citizen Eco-Drive is fueled by light, any light, so it never needs a battery Grey ion plated stainless steel case with rose gold tone accents 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