It is said that more than 80% of the reasons why Automatic watch failed to provide precise and accurate time keeping are due to unwinding movement caused directly or indirectly. So it is very necessary to take a watch winder. This watch winder box is perfect for winding your watches to prolong their life. It can also store your watches. Now, get this product to take care of your beloved watches. Specifications: Material: PU leather + glass + lint + metal Color: black, brown (optional) Plug: US, EU, UK, AU (optional) Power supply: plug in to the power source / 2 * AA batteries (not included)  Voltage: AC100~240V, 50/60HZ, 0.3A Item size: 160 * 130 * 120mm / 6.3 * 5.12 * 4.72in  Package size: 245 * 145 * 130mm / 9.64 * 5.71 * 5.12in Package weight: 800g / 1.76lb Note:  1.Due to the different display screen and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow 10-20mm measuring deviation due to manual measurement. Package List: 1 * Watch Winder Box 1 * Power Plug 1 * User Manual