Citizen Eco Drive E650 Perpetual Calendar Radio Controlled Watch. A beautiful clean working example of this Citizen Eco-Drive watch. The Citizen Perpetual Chrono A-T features radio-controlled atomic clock synchronisation for superior accuracy in 24 time zones. Additional features include a chronograph, perpetual calendar, dual time and power reserve indicator. Styled in a stainless steel case and bracelet and black dial for a sleek, sophisticated look. Featuring Eco-Drive technology, powered by light, any light and never needs a battery. New capacitor fitted prior to sale.