Jaeger Lecoultre 839 / IWC 1852 complete balance / part 721 (no hairspring)

Jaeger Lecoultre 839 balance without hairspring , the balance staff is ok

Also for IWC 1852

Part 721 (no hairspring)

Balancier pour Jaeger LeCoultre 839, sans le spirale. L'axe est ok.

Pre-owned / pre-used