Port Royal Chrono, ca. 2003,
A gift for the 50th Birthday

In this picture you can see 2 of the 3 rotor screws, that means there is still one missing
One screw is between the movement marking "400Z" and the right pusher. The other one is at the outside of the movement as well, about diagonally from the first one. Now where is the third and last rotor screw?