Combining style with innovative design, the Citizen Perpetual Chrono A-T is packed with features to take you from day-to-night. Featuring a perpetual calendar, 12/24 hour time, alarm, pilots slide rule inner bezel and radio-controlled atomic clock synchronisation for superior accuracy - it’s a piece you can count on. Made complete by a stainless steel case and bracelet, the 43mm green dial works luminous hands, markers and a handy date display. Featuring Eco-Drive technology, powered by light, any light – you\'ll never need a battery. This watch Is water resistant up to 200m and ready for an adventure.