Counter Balance
A mass of metal placed on the opposite side of a wheel to that to which a crank is attached to compensate for the weight of the latter.
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 mass of metal placed on the opposite side of a wheel to that to which a crank is attached to compensate for the weight of the latter.