regulator pin

noun

: 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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Cite this Entry

“Regulator pin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/regulator%20pin. Accessed 16 Jun. 2024.

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