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  • noun

Words related to hairspring

a fine spiral spring that regulates the movement of the balance wheel in a timepiece

References in periodicals archive ?
You can see the heart of the watch beating," he says, removing a Moser Henry Double Hairspring from his wrist to show me, through the watch's transparent sapphire glass backing.
Especially because of the technical, and our own material for the hairspring," Lange adds.