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.

UK watchmaker showing service of Omega Speedmaster - review of keyless work parts

Here is a detail of the winding pinion and the teeth are clearly worn so, it will be replaced.

UK watchmaker showing service of Omega Speedmaster - comparison of new to damaged winding pinion

Here is the new winding wheel and the teeth are properly shaped.

UK watchmaker showing service of Omega Speedmaster - comparison of new to damaged winding pinion

This is the minute wheel and this is fine.

UK watchmaker showing service of Omega Speedmaster - review of minute wheel

The keyless works are assembled on the plate with the crown/stem.

UK watchmaker showing service of Omega Speedmaster - fitting of keyless works

The hour recorder and barrel support bridge are then assembled.