Pivoted Detent
A detent which is mounted upon a pivoted arbor around which is a small spiral spring which causes it to return to the locking position.
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.
A detent which is mounted upon a pivoted arbor around which is a small spiral spring which causes it to return to the locking position.