Hallo Bill, I don't understand the aim of this thread, is it busines? Please explain to the non-native-English-speaker.
And to the contributers, I hate items shown without any comment.
But as there were some Zenith El Primero, that means the maybe first automatic chronograph movement with full calendar!
I like it and would like to own one in 18k by Zenith, Movado, Waldan or Ekegren...
Here is my titan Port Royal.
Konrad