Jaeger Lecoultre 889/2 pallet cock + screw / part 10057

Jaeger Lecoultre cal 889/2 part 10057

Pallet cock + screw / Pont d'ancre + vis

This part has been dismounted from a caliber 889/2 , I don't know whether it is also ok for 889/1 and 889

Pre-owned / pre-used