I read this the other day while discussing mechanical pocket and wrist watches:
Plus it is common practice to pull the stem out and stop the wristwatch at night or when not wearing it. You then have to set everything each time you put it on. That's what the regulator clock on the mantle is for.
Why would anyone "stop the wristwatch at night"? Or ever? "Pull the stem out"? Why deliberately cause more problems for yourself? I can understand forgetting to wind it up for 33+ hours so that it has stopped naturally, but why actively go out of your way to manually stop it instead of just winding it up so that it's ready when you wake up and doesn't have to be set every day?
Don't tell me this is some sort of "wear and tear" thing? Surely they can't be that fragile, as to require a "good night's sleep" like a human?