Men's Citizen skyhawk a-t perpetual alarm chronograph blue dial watch. Silver-tone stainless steel round case with 46 mm diameter and sapphire crystal scratch resistant bezel. Analog dial features luminous hands, index arabic numerals hour markers, and minute markers. Powered by the citizen caliber u680 eco-drive movement incorporating atomic timekeeping technology synchronized in 43 world cities. Includes perpetual calendar date function, countdown timer, alarms, power reserve indicator, second hand, chronograph timing down to 1/100th second measuring up to 24 hours, and is water resistant to 200 meters / 660 feet.