Features:The internal parts of automatic watches are designed to follow the pull of gravity. Therefore, they don't have gears that must be wound with a spring. Instead, their tiny weights get pulled by gravity as you move and swing your arm, so little by little these weights are twisting around both clockwise and counter-clockwise, until your watch is wound up. Watches like this are called automatic or self-winding types, as opposed to quartz kinetic, or mechanical watches.Specifications:Dimension L*W*H:72*35*33CM/2.36x1.15x1.08ft/28x14x13inch approxColor:BlackG.W/PC: 9.5kg/335oz/20.94lb approxFinish Type:New curved front lid design.Hand crafted with high gloss piano finish.MDF sprayed paint, gloss finishing with plush velvet interior.Operation:1. Put the watch on the watch winder;2. Plug the AC adaptor into the back of the winder;3. Turning the control switch knob on the back of the winder;4. There are 4 modes for the programmable microprocessor to control the time interval of winding cycle as follows:-Mode 1- 6 Minutes time interval for every 2 minutes clockwise winding.-Mode 2- 6 Minutes time interval for every 2 minutes counter clockwise winding.-Mode 3- 6 Minutes time interval for every 2 minutes Counter clockwise winding; + 6 Minutes time interval for every 2 minutes clockwise winding.-Mode 4- 180 Minutes time interval for every 10 minutes bi-direction winding.Cycle will be repeated until power off)For any winding mode, the rotator (noise level below 5dB)Will turn 6.5-8.0 turns/minutePackage Included:1x Automatic watch winder1x 110V-240V AC Adapter(US PLUG)1x Instruction User Manual