Winding is the process of manually turning the crown of a watch in order to wind and store energy in the mainspring. This action is necessary to keep the watch running and to maintain accurate timekeeping. The winding process can be done either by hand or with an automatic winding mechanism. Hand winding is done by turning the crown in a clockwise direction until it stops, while automatic winding is done by the motion of the wearer’s wrist. The number of turns required to wind the watch varies from model to model.