Redefining atomic timekeeping with a turbine inspired bold and powerful timepiece. The newest edition of the CITIZEN Promaster Skyhawk A-T collection is remarkably dynamic and visually appealing. With atomic timekeeping in 43 cities, this watch features a perpetual calendar, dual time, alarms and pilot's rotating slide rule bezel. This model appears with a Super Titanium™ case and bracelet, black dial, bright orange details. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number U680.