Watch Winder is a device that keep self-winding automatic watches running when not worn. They are a popular, necessary tool for watch collectors.MaterialPiano lacquered Wood + PU leatherMeasuring:Size:25CM x 26.5CM x 20.5CM (L*W*H)Weight: 4.5KGMotorJapanese silent motorFive-speed adjustment modeMode 1: OFF operation switchMode 2: Turn clockwise for 2 minutes, stop for 6 minutes, cycleMode 3: Turn counterclockwise for 2 minutes, stop for 6 minutes, cycleMode 4: 6 minutes clockwise 2 minutes, 6 minutes counterclockwise, 6 minutes, cycleMode 5: 5 minutes clockwise, 5 minutes counterclockwise, 3 hours, 9 hours, cyclePower SupplyPower: with 3V power cord, using the original power supply, the watcher has a longer service lifePackaging includes1* Watch Winder1* Power Cord