Powerful, polished and fashionable this CITIZEN® Drive MFD with chronograph measuring up to 60 minutes and 12/24-hour time will fit in with any style. The grey-tone stainless steel case with blue chroma-finish, navy blue nylon strap and charcoal grey dial are sure to stand out. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number H501.