Omega crown wheel + crown wheel core 625 635 / part 1101 + 1102 (a bit oxidized)

Omega crown wheel + crown wheel core / roue de couronne + noyau de couronne

Same part for both following calibers :

Omega 625 and 635

Part 625-1101 + 1102
New old stock, but some small oxidization on the parts (see pics). The packet was factory sealed, I have just opened it in order to show the 2 parts.