rocking bar
noun
1
: a bascule-shaped plate in a watch that contains the winding wheels and rocks them alternately to engage first the winding and then the hand setting mechanism
2
: a device in an alarm clock or watch that engages the time and alarm mainsprings
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“Rocking bar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rocking%20bar. Accessed 28 Nov. 2024.
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