regulator pin


: either of two short upright thin cylindrical pins that are fitted in a watch regulator bearing or banking the hairspring in such a manner that moving the regulator into a position in which the pins touch the hairspring closer to its center shortens the spring and causes the watch to run faster

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Dictionary Entries Near regulator pin

Cite this Entry

“Regulator pin.” Dictionary, Merriam-Webster, Accessed 19 Jul. 2024.

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