The bremont mustang p 51 is a very special limited edition timepiece original parts from the famous 1944 mustang wwii aircraft were used in the creation of the watch it is equipped with be 54ae automatic calibre that performs 28 800 vibrations per hour and has 25 bearing jewels a 42 hour power reserve is available for the convenience of the wearer other characteristics include glucydur balance anachron balance spring and nivaflex 1 mainspring the movement is certified by contrle officiel