The keyless works, so called because originally they were worked with a key and not a crown, are reviewed under a microscope. These parts all look fine but the winding pinion in the upper left needs further investigation.
Here is a detail of the winding pinion and the teeth are clearly worn so, it will be replaced.
Here is the new winding wheel and the teeth are properly shaped.
This is the minute wheel and this is fine.
The keyless works are assembled on the plate with the crown/stem.