Many modern auto wind watches have an auto wind system that winds with the rotor turning in only one direction. That means that, if your watch winder turns in an incorrect direction, the watch won’t wind. You might be okay if you know which direction must turn to do the winding, or if you have a winder that alternates the rotation of the watch(es). You will find much discussion on the message board pertaining the likes and dislikes of watch winders. I have one. But I use it only for testing the auto wind on a watch I have repaired, and also as a means of doing final regulation. Otherwise, I am in the “don’t use them” camp.
