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No great magnification, but it looks like Heuer might have gone a different route in how the dial was made? This is a late 1940's 2447, with later lume on the hands and the chrono hand from a Zenith El Primero (by original owner).
I think suppliers like Singer made dials for several brands like Omega and Rolex. Probably some other companies as well. I will look at my dials reversed side during upcoming service.
BR
Peter