Fill light and battery details

it automatically shuts down to prevent damage

7V lithium‑ion battery for portable use

and increased toughness

wooden usb watch winder for automatic watches silent mabuchi motor __IMPORT358 Fill light and battery detailsQuiet operation This winder uses a mute Mabuchi motor for quiet, reliable rotation. It keeps your automatic watches ticking without drawing attention. Smart winding modes Gear B: rotates forward 2 minutes, stops 6 minutes, then reverses 2 minutes and stops 6, repeating the cycle. Gear L: reverses 2 minutes, stops 12 minutes, then forwards 2 minutes and stops 12, repeating the cycle. Gear B is suitable for short term use and Gear L for long term use;