Citizen Men's Eco-Drive Watch from the Drive Collection. A laid back feel with classic structure, instantly adding style to any wardrobe. In dark gray ion-plated stainless steel case with gray chroma finishing, light brown strap and black dial with chronograph and 12/24-hour time. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number H500. Industry-leading 5-year warranty.