SUPER QUIET ROTATION: The internal Japanese motor is durable and very quiet during operation. Gray velvet fabric, strong sound insulation, sound insulation does not produce rolling noise. For any winding mode, the rotor will turn 6.5 to 8.5 rpm, TPD: 650-1850 rpm per day. Anti-magnetization: The watch winder adopts anti-magnetic technology, and the circuit board is anti-static, so it will not be magnetic, which maximizes the watch protection. Keep your mechanical watch accurate every day and never go wrong. Watch winder can use battery and electricity. We will send UK 3 pin plug as default. The crown rotates in both directions. Rotate clockwise for 2 minutes, stop for 6 minutes, then reverse clockwise for 2 minutes, stop for 6 minutes. It will loop automatically. The voltage of the watch winder is 100-240V. Exquisite appearance: the exterior of the watch box is made of luxury piano paint and MDF, and the transparent window is made of acrylic plexiglass of high hardness is safe and sturdy. The interior is equipped with a velvet coating for maximum protection of the timepiece. Continuous silence, longevity, magnificent elegance, surprise gift. This device saves watch collectors from having to wind and reset the date/date for self-winding timepieces. Help keep your mechanical watch in good working order