Best thing about this is it's cheap compared to the overpriced simple motors that are sold.  I just do not understand how something so simple can cost so much.  I feel like I could build one for way less.

I have a Rolex knock off... and I love the damned thing so I bought a 'knock-off' winder thingy and it makes me laugh because I have to unplug it and plug it back in to get it to continue to work.

I would never buy a real Rolex because they will not continue to run if you do not wear them... and, unlike, many watches before batteries, you cannot wind it by hand.  It is wound by pretty much constant movement as you wear it day to day.  Sigh.  Thus a winder is needed... a simple motor that can cost upwards of $200!!  Absurd.  Anyway, this one works but you have to stay on it to keep it running.  It's a joke..but wasn't worth returning since a substitute would be much more expensive. Whatever.

If you own a real Rolex, go for the expensive you.. it's nothing compared to the price of that watch.