The trainmaster doctors chronograph is a limited edition timepiece only 199 such watches have been produced each trainmaster doctors chronograph is made of yellow or rose gold and 99 pieces come with platinum casing it is equipped with balls 350 automatic movement which is based on eta 7750 the movement performs 28 800 vibrations per hour and has 25 bearing jewels a 46 hour power reserve is available for the convenience of the wearer the watch is protected from shock and water penetra