going barrel


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Related to going barrel: Watch barrel

going barrel

[′gō·iŋ ‚bar·əl]
(horology)
A mainspring barrel with a toothed edge for driving the train; it is mounted on an arbor that is stationary except while the timepiece is being wound.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.