Jaeger Lecoultre 838 839 / IWC 1852 crown wheel + crown wheel core / part 420 + 423

Jaeger Lecoultre 838 839 crown wheel + crown wheel core + screws

Also for IWC 1852

Part 420 + 423

Roue de couronne et noyau de roue de couronne pour JLC 838 et 839

Pre-owned / pre-used, dismounted from JLC 839