I am sorry, but this is utter nonsense.
First of all, you are talking about automatic (mechanical) watches. Manually wound mechanical watches don't need a winder at all. Watch winders make sense only if you are bothered by setting your watches again before wearing them (which I find a very satisfying experience, personally) or if you have a very complicated watch where setting the date, day, moonphase etc would be more involved than for a pure time/date watch.
Secondly - and most importantly - the "gears" don't lose accuracy if you don't wear the watch. Back in the days before synthetic oils, one was meant to keep the watch running to have the oils retain viscosity. Luckily, that is not the case for a long time anymore.
It is actually quite the opposite nowadays: the more the watch runs, the greater the chance that the watch accumulates wear! Although with modern watches of at least decent quality, this is not really an issue.
I own ~20 watches, which I alternate through regularly and not a single one of them has - or needs - a winder.
Secondly - and most importantly - the "gears" don't lose accuracy if you don't wear the watch. Back in the days before synthetic oils, one was meant to keep the watch running to have the oils retain viscosity. Luckily, that is not the case for a long time anymore.
It is actually quite the opposite nowadays: the more the watch runs, the greater the chance that the watch accumulates wear! Although with modern watches of at least decent quality, this is not really an issue.
I own ~20 watches, which I alternate through regularly and not a single one of them has - or needs - a winder.