End Stone
The small stone disc on which a watch pivot rests, applied principally to escapement and balance pivots. Jewels with end stones are known as capped jewels.
How to true a balance, repair a chipped dial, temper a spring or test a stone — the working bench-book of the American watch trade, arranged A to Z.
The small stone disc on which a watch pivot rests, applied principally to escapement and balance pivots. Jewels with end stones are known as capped jewels.