Bergeon 5700Z and Rolex bit mounted
The pictures shows the Rolex bit from the Bergeon set 5537 and the adapter mounted. Also here be very careful. The Bergeon 5700Z also can scratch your Rolex case back especially if you did not adjust and lock the vertical position well. Always take your time when opening watches! Hurrying here can become pretty expensive because a scratched watch back reduces the value of your watch considerably.