An automatic watch harnesses the energy produced by motion to wind the spring. This movement features a rotor that spins when the watch is in motion as when the wearer moves his arm.  The mechanism transfers the energy from the spinning rotor to the main spring of the winding system.  For watches with more than one complication, resetting the watch can be a time consuming task.  Also resetting your watch too many times can actually damage the threads on the crown or case, and will compromise the water resistance of the watch. Below is one of the best watch winders money can buy. Take a look at one of these great watch accessories today!