However, with most of my sales listings, I invariably get asked about accuracy by some tire kicker/prospective buyer.
I don't put anything in my listings about accuracy because I usually don't know.
I do know, generally, the accuracy of some of my watches, because I wear them frequently enough to notice. But the ones I'm selling aren't the ones I wear frequently, thus don't get a spot in a winder.
Personally, I think some people obsess about accuracy too much.