Mixing style and functionality, discover the Citizen Eco-Drive Perpetual Calendar A-T. Featuring a stainless steel 44mm case and bracelet, a tachymeter bezel, blue dial with silver-tone accents and a date window. Additional features include atomic timekeeping for superior accuracy, perpetual calendar, a chronograph, 12/24 hour time, power reserve indicator, world time in 24 cities and Citizen Eco-Drive technology, powered by light, any light and never needs a battery. Water resistant to 100 meters.