a skeleton clock refit

[Rifleman01]

With no disrespect meant Sir, you may have obtained the same result by placing the assembled item in a small ultrasonic tank with a suitable oil solvent and run it for a few minutes. The only thing to watch out for the solvent dissolving any plastic parts. Such tanks can be purchased for £15 -30 U/K pounds or possibly less in the USA. They are generally sold for cleaning jewellery.
Harry