Sweep Seconds
A movement in which a long seconds hand moves from the center of the dial instead of at the bottom, as in chronographs and split seconds watches.
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 movement in which a long seconds hand moves from the center of the dial instead of at the bottom, as in chronographs and split seconds watches.