Check the listing for details. Single Watch Winder for Automatic Watches,Timer Shutdown,Adjustable Speed,Sel.... Color: BLACK, Condition: New with tags. Listed at 22.27 USD. 【Product information】 material: plastic. Weighing 300 grams.It can connect to the mobile phone charger, or other USB interfaces. Input DC5V, ≤2A. Do not use power supply higher than 5V, such as 5.1V, or 6V, and so on. If you have any questions, please contact us in time. 【Timer】It can set a timer to shut down, allowing 1-12 hours. 【Adjustable speed】This device has 3 speed modes. Low -speed mode, medium speed mode, fast mode. 【 Supports single watch 】 The device supports single watche. The noise generated by the device during operation is very weak and almost inaudible. 【Extensive Compatibility】This device is suitable for 95%of watches on the market.It is particularly suitable for Seiko watches. 【More Durable】This device works great and is easy to install. It is more durable than the box style.The box-style watch winder is driven by a motor,and the carbon brushes in the motor are easy to wear out. Once the carbon brushes are worn out, the box-style watch winder will not work.This is why a lot of box watch winders work for less than a year.