Automatic Watch Winder Self-Winding Professional USB Powered Ornament for Self-Winding Mechanical Watch, Black, 15cm, Black

* Performance: The mechanical watch automatically winds, simulating walking posture and normal working state Note: It must be a mechanical watch with automatic winding function. * Plug-in version: connect the power cable and use it directly. Two oscillation modes: swing back and forth, swing left and right. Note: It must be a mechanical watch with automatic winding function. * Safety: Don't worry about the watch being magnetized, as long as it is more than 5cm away from the magnetic field, it is safe enough. * Quiet: The mechanical watch auto oscillating device has a quiet, which does not affect sleep, and the precision bearings are silent. * GREAT GIFT IDEA: The watch winder is a great gift. It is a great gift for family, friends or work colleagues on birthdays, Thanksgiving, Christmas, Valentine's Day, birthdays or celebrations.