Hamilton Khaki Pilot Pioneer is based on created in the 1970s watch for the British Royal Air Force. Design is stylish and connected to the his
ancestor. New Pilot Pioneer is based on Hamilton H31 caliber which is modified version of ETA 7753 without the 12 hours chrono counter at 6. It has an extended 60 hrs power reserve. The calliber is in the range of -5 to +1 seconds COSC chronometer accuracy. In summary this is good oldtime watch with solid modern calliber.