Home > Term: balance spring
balance spring
The balance spring is almost the "soul" of a mechanical watch. Wound into a spiral, its tension makes the balance oscillate regularly, which is critical to the proper running of the movement. If the balance spring stretches, the watch will slow down and if it shrinks it will speed up.
- Part of Speech: noun
- Industry/Domain: Timepieces
- Category: Watches
- Company: TAG Heuer
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Creator
- Rolf Gleim
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