Watch Winder Guide
What exactly is a watch winder?
A watch winder is a device used to keep automatic (also known as self winding) watches running when not worn. Automatic watches operate on the principle of winding themselves using a moving weight inside the watch. The weight swings or rotates while the watch is worn and turns the winding mechanism inside the watch. So, fairly obviously, if the watch is not worn, then it no longer receives power this way and will run down. While virtually all automatic watches can be manually wound, this is not always convenient. So the concept of an automatic watch winder was born.
A watch winder is a device which holds a watch and rotates it to emulate human motion to operate the self-winding mechanism.
A watch winder cannot over wind an automatic watch, since all automatic watches are protected from being over wound by a mechanism that disengages the winding process when the mainspring is fully wound.