Winder for automatic watches to test the winding function and mainspring breaking. Holds up to six watches at once. Can be used horizontally or vertically. Indicates on average, to within 5 seconds, the performance of a watch on the wrist. Replaces the static control of positions with a lifelike test, as if it was worn on the wrist. The Auto Test turns at 4 revolutions per minute and can hold up to 6 automatic watches.
* Ships with signature.
