Amateur Cock May 2026

: If a balance wheel stops moving when the cock is tightened, it may be due to insufficient vertical clearance (endshake). Some amateurs resolve this by "shimming"—placing a tiny piece of paper or metal foil between the cock and the mainplate to raise it slightly.

: In modern watches, the balance cock often houses a shock-absorbing setting (like Incabloc) for the jewel, protecting the delicate pivots from damage if the watch is dropped. Common Challenges for Amateurs amateur cock

: It holds the upper pivot of the balance wheel in place. Because it is only anchored at one end (cantilevered), it allows for easier visibility and adjustment of the balance assembly compared to a full bridge. : If a balance wheel stops moving when

The balance cock is a cantilevered bridge, typically secured to the watch's mainplate by a single screw. It serves as the upper support for the balance staff—the axle upon which the balance wheel oscillates—enabling the watch to keep time. Common Challenges for Amateurs : It holds the