Hi Hoi,
I think you compare apples with pears...
You can not compare a handwound Tresor with a "Constellation de luxe " which was one of the top range watches
within the Constellation line only topped by the "Grand Luxe" version!
You should compare "regular" handwound gold watches with the Tresor line - then you will see (better feel) the difference.
(There were also few automatic models, all of them with well sculpted cases, sometimes with special shaped lugs.)
The Tresor watches (mostly) are heavy with "hefty" 18K gold cases and beautiful de luxe dials with massive riveted
gold hour markers and solid gold hands (not only plated).
They are the luxury watches besides the Constellation and SM lines - why do you think are they called "Tresor"? (in French for "treasure")
IMO poor men´s watches are all the gold capped and goldplated (goldfilled) versions, e.g. de Villes and the later Geneve watches (not to be mixed up with the EARLY ones which were a top line!).
When people could not afford an 18K solid gold watch they chose these much cheaper versions.
kind regards
Erich