i have a black dialled chrono with many similarities by Wakmann-Breitling. mine is of course from 1964. interestingly they are both made in France. i've not had the chance to write anything about it yet, but its interesting as the movement is marked Wakmann, but has the Breitling US Import marks as well. there's a good reason for it though.

you can tell that the Mathey Tissot is earlier than my Wakmann, but not by many years.
enjoy
Graham