Many people own watches, but don’t wear them all the time. When they do wear them, they’re often not worn for more than a few hours at a time. This means that the watch needs to be wound, but it can be hard to remember to do so. Watch winders are a great solution to this problem. A watch winder is a rotating device that winds the watch when it’s not being worn. They’re usually powered by a battery or an AC adapter, and can be either hand-wound or fully automatic.