Amateur Cock -

: 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

: 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. amateur cock

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. : In modern watches, the balance cock often