To the OP, thanks for posting your dad's watch, very cool to have something like this in the family. No offense intended, but I would not call this mint, or even remotely approaching mint.
The dial looks redone and as Larry pointed out, the hour/minute hands don't match the dial, and both crowns look replaced. All common enough stuff to happen to a watch approaching 80 years old.
if the thread gets moved over to the UG subforum, probably get more people to join in the debate
...........Seems to happen a bit more with Aero Compax than other models
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