Winding Machine Automatic Winding Machine Even when not worn on the wrist, it continuously winds the mainspring through automatic rotation and rest cycles. *Size: Exterior Case Height: Approx. 15.5 cm Width: Approx. 12 cm Depth: Approx. 12.5 cm The pillow size can be adjusted depending on the type of wristwatch, making it suitable for both ladies' and men's watches. *Modes 2 minutes counter-clockwise. 6 minutes rest. 2 minutes clockwise. 6 minutes rest. Repeat. It automatically winds by repeating counter-clockwise rotation, clockwise rotation, and rest. ★Two Power Supply Methods ・Power supply via USB 5V (cable included, operation confirmed) ・Dry batteries: 2 AA batteries (included, operation confirmed) *Operation confirmed for both methods above. I have many other items for sale.