Glossary · Regulation
Hairspring collet
The fitting that secures the inner hairspring to the balance staff.
Explanation
Its position and attachment establish the spring's inner termination; rotation or damage can materially alter beat and centring.
Glossary · Regulation
The fitting that secures the inner hairspring to the balance staff.
Its position and attachment establish the spring's inner termination; rotation or damage can materially alter beat and centring.