This automatic watch winder is the ideal choice to storage your watch when you do not wear it. With constantly rotation, the watch winder box keeps your watch (especially mechanical watches) in motion to avoid reducing the accuracy of the watch. Belt Driven motor system which is extremely quiet and long lasting, running with no noise nearly. Winds one watch at a time, the pillow is adjustable to fit different-sized watches. Two-way Power:Powered by battery or AC power outlet,Please make sure that the adapter is completely removed from the unit when using batteries. product manual: Product Name:2 3 Watch Winder Boxes Size: 190mm*260mm*213mm Dial diameter: 138mm Dial thickness: 45mm Pack Material: High density MDF grade pu leather (leather paragraph) Internal material: high-grade PU leather, high-grade velvet Functional position description Mode 1: Stop Mode 2: clockwise 2 minutes, stop for 6 minutes, cycle Mode 3: Counterclockwise 2 minutes, stop 6 minutes, cycle Mode 4: Run 2 minutes, stop 6 minutes, reverse 2 minutes, stop 6 minutes, cycle Mode 5: clockwise for 5 minutes,Counterclockwise for 5 minutes,Sustained 3 hours, stop 9 hours, circulation TIPS: Forward mode is suitable for most of the current watch models, often wearing the available mode three. Tips: Different sizes of measurement methods have slightly different sizes. Please prevail in kind. Due to different shooting tools, color may be a minor mistake, not a quality issue.