hair·​spring | \ ˈher-ˌspriŋ How to pronounce hairspring (audio) \

Definition of hairspring

: a slender spiraled recoil spring that regulates the motion of the balance wheel of a timepiece

Examples of hairspring in a Sentence

Recent Examples on the Web Inside is the caliber 3230, featuring Rolex's signature Chronergy escapement and a blue Parachrom hairspring, with a power reserve of 70 hours. Carol Besler, Forbes, "Rolex 2021 Collections Include An Out-Of-This-World Daytona, Two-Tone Explorer And Diamond Day-Date," 7 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hairspring.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hairspring

1830, in the meaning defined above

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Time Traveler for hairspring

Time Traveler

The first known use of hairspring was in 1830

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Statistics for hairspring

Last Updated

22 Apr 2021

Cite this Entry

“Hairspring.” Dictionary, Merriam-Webster, Accessed 13 May. 2021.

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