What is another word for hairspring?
Pronunciation: [hˈe͡əspɹɪŋ] (IPA) 
Hairspring is a term commonly used in the horology industry, specifically referring to the delicate spring that regulates the movements of a watch's balance wheel. However, there are a few synonyms that can be used to describe the same component. These include the balance spring, regulating spring, and the oscillator spring. In the early days of watchmaking, the hairspring was referred to as the "spiral spring" or "spiral balance spring." Regardless of the name used to describe it, the hairspring remains one of the most important components in a watch's movement, ensuring accurate timekeeping and smooth, consistent movement.
