Of course, Dubois Depraz was one of the original participants in the Heuer / Breitling / Buren-Hamliton / Dubois-Depraz joint venture that produced the Chronomatic / Cal 11 / Cal 12 movements.

It would not have surprised me if Dubois Depraz was to receive some number of finished chronographs (made by either Heuer or Breitling), as part of this venture. Odd, however, that the Dubois Cal 12 chronographs came somewhat late in the venture, specifically in the 1977-79 range (Daytona, Verona, etc.). Yet another mystery to go on "the list".

Jeff

++++++++++++++++++++++++

: Stewart,

: I was told by my old watchmaker, that Duois Depraz most likely had
: chronographs made by Heuer, with their name on the dial instead
: of the Heuer shield.
: He was a Heuer dealer until the late '80s.

: I once owned one like this...
:

: But mine was a real beater...

: Regards

: Darwin