Vintage military chronographs
French Air Force Dodane Type 21 chronograph (left) and British Fleet Air Arm Lemania single-pusher chronograph (right), both from the mid-1960's.
Iraqi Air Force Breitling Navitimer Chrono-matic, early 1970's.
Answer:
...but I appreciate seeing your pics. I particularly like the relative simplicity of two-register chronos, and military versions have an even more 'no-nonsense' appeal. Here's a Heuer owned by Tom G. that I phtographed some time back.
Thanks.
Paul.