Citizen Men's AT4117-56H "Nighthawk A-T" Stainless Steel Eco-Drive Watch Imported Eco-Drive solar-powered round watch with rotating elapsed-time inner dial ring and featuring atomic timekeeping with synchronized adjustment in five time zones Day/date windows Alarm Power reserve indicator Chronograph 44 mm stainless steel case with anti-reflective sapphire dial window Japanese quartz movement with analog display Pewter-tone band and fold-over clasp with single push-button safety Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving Eco-Drive solar-powered round watch with rotating elapsed-time inner dial ring and featuring atomic timekeeping with synchronized adjustment in five time zones Day/date windows Alarm Power reserve indicator Chronograph 44 mm stainless steel case with anti-reflective sapphire dial window Japanese quartz movement with analog display Pewter-tone band and fold-over clasp with single push-button safety Water resistant to 200 m (660 ft): In general, suitable for professional marine activity and serious surface water sports, but not scuba diving NOTE:Expose the watch with the dial facing towards direct outdoors sunlight (not through a window) for five to six hours at least once a month. Before storing the watch in a dark place for an extended period of time, be sure to charge it fully. Time Zone Selection: Pull the crown out to position; Rotate the crown to select the city;Pull the crown out to position;Push the crown in to position.