Sport design combined with superior accuracy results in the expansion of the CITIZEN Perpetual Chrono A-T Collection, or PCAT, which syncs to the atomic clock for ultra accuracy. The atomic timekeeping watch is powered by any light with Eco-Drive Technology. Shown here in stainless steel with dark grey dial and bright red accents, chronograph, perpetual calendar, 12/24-hour time, alarm, power reserve, tachymeter, day and date. Caliber number E650.