Drive from Citizen Eco-Drive Men's Chronograph Watch with Date, AT2217-01H Citizen Eco-Drive is fueled by light, any light, so it never needs a battery Grey ion plated stainless steel case with orange accents 60 minute chronograph Drive "D" logo on crown. 12/24 hour time Water resistant to 99 feet (30 M): withstands rain and splashes of water, but not showering or submersion