Why Should Buy a Watch Winder?Most modern mechanical watch possess a perpetual movement which automatically winds the watch when it is moved. However, if you do not wear your watch every day, it could stop running, causing you to have to wind it manually when you wear it again.A watch winder is a device used to keep self-winding automatic watch running when not worn.Product name: highlights black white 2+0Specification: 19 * * 19 cmMaterial: density board, PUWeight :(net weight) 2kg (gross weight) 2.9kgMotor: Japanese marlboro motorNote: the instruction manual is general, the concrete object shall prevail!Five gears:(1) stop(2) positive rotation for 6 minutes, stop for 30 minutes, and repeat(3) reverse for 6 minutes, stop for 30 minutes, and loop(4) reverse for 20 minutes and stop for 10 minutes; turn forward for 20 minutes and stop for 10 minutes; cycle(5) forward rotation for 10 minutes, reverse rotation for 10 minutes for 3 hours, stop for 9 hours, and loopIf you want to maintain the performance of your watch, then a winder might be a good idea for you.One of the biggest benefits of a winder is it will keep your watch on time and ready to wear whenever you need it. It will also keep the day/date function working properly, so there will be no need to constantly reset your watch when you decide to wear it.