Oris bc4 der meisterflieger is one of the newest additions in the oris line of aviation watches it is equipped with oris 649 automatic calibre a modification of eta 2836 2 the movement performs 28 800 vibrations per hour and has 27 bearing jewels a 38 hour power reserve is available for the convenience of the wearer the chronograph of the timepiece comes with a 60 second and a 12 hour register a date display is positioned at the 6 oclock mark indices and hands are covered with luminous p