I'm far from an expert, but I've never seen this before and seems unusual for an issued chrono. Are there issue markings on the case back?
There are : They stand for : Aviation Militaire Belge, which was the name of the Air force before it was called Air force in 1945 Belgian issued quattro :
Beginning to wish I had never started this thread, only a couple of low level pieces left in my stable and you guys keep coming up with all these beauties Keep it up I can handle it
Marathon GSAR c.2005...I don’t know if I have the muscle mass in my arm to hold this thing up long enough for pictures.
Well, I am currently down to a handful as well. Quite nice to have this military thread here, concentrates one’s focus.
I own the WWII version of the A11 and love it, but I wasn't aware there was a version of this watch made into the 70's! The case shape is great and looks like stainless as opposed to the earlier chromed versions. Is this still 31mm or is it larger? Swiss movement? Need details!!