Citizen Classic Sport Chronograph Green Dial WatchAn extension of the Chronograph range, this multigenerational chronograph is your perfect accessible pilot timepiece. Featuring an array of aviation level functionality such as Eco Drive technology ensuring your watch never loses power, a thin bezel with a wide dial for better visibility and luminous markings. Armed with base 30 pulsations for high accuracy heart rate count. This method is one which is used medically to measure heart rates both