Watch winder description: Watch winder rotors can be programmed to operate independently. You can set an individual program for each rotor depending on the watch models you place into it. The automatic watch design does not allow the main spring to get ‘overwound’ but the precise setting of the number of turns per day prevents excessive wear of the winding mechanism. You can set a number of Turns-Per Day from 650 to 1950 TPD combined with any winding direction. Three rotation directions are available: clockwise, counterclockwise and bi-directional (mixed). In the mixed mode, the rotor rotates clockwise and counterclockwise alternately. The watch winder has a Motor-Stop option. If enabled, all the rotors will stop once you open the door. This feature prevents the breakdown of the winding mechanism when you install or remove the watch from the rotor. Polyurethane watch pillows will fit for men's as well as women's watches. The pillows are made of soft polyurethane and will never scratch your watch or bracelet. The door lock prevents unwanted access to your timepieces. No one will get to your watches without permission. The interior light gives a beautiful appearance to the watch winder in the dark. The rotors are whisper quiet and will not disturb your sleep. The watch winder has a battery power option. It can be powered by the included 100-240V AC adapter or by 2 D batteries (not included).Product features: Exterior finish: High-gloss piano lacquer;Soft polyurethane watch pillows;Maximum watch case diameter: 2 inches (50 mm);Turns-Per-Day range: 650 to 1950 TPD;15 winding programs, 3 rotation directions;Motor-Stop option;Door lock;Battery power option;LED interior light;Universal AC power adapter (100-240V, 50-60Hz).