I have a “C” Constellation with 751 movement and it has the date slightly higher than the day:
You can still read it just fine, but this watch happens to have an original magnifier crystal and so the flaw is magnified, making it stand out. It’s most noticeable when “FRI / 10” where I and 1 clearly doesn’t match up.
I’ve shown it to a watchmaker and he says he doesn’t want to touch the calendar mechanism and I should just leave the vintage watch alone, but to me it does stick out and I would try if it could be fixed without disturbing the mechanism too much. I mean, a lot of “problems” we share here do not interfere with the watch’s function, but I feel that once you notice it, small flaws don’t feel small anymore, especially when the rest of the watch is in pretty good condition.
If you’re familiar with the 751 movement (chronometer, pull-out quickset date) would you attempt to remedy the date, or is it best left alone because of the risks?