Humm..

a few points on clock servicing. I'm not sure about anything other than completely dissembling , cleaning, reassemble ,oil and adjust.

For your edification, many of these new clocks seem to have VERY soft brass plates- german ones. Not sure what hermle is using for oil, but it is not good. I think a california dealer was telling me he overhauls them before they are sold-that's how bad the oil is...

Typically shafts are not "polished". Polishing is doesn't leave a smooth surface because it acuents the defects in the surface, but yes many have done it wrong for YEARS by many self-trained clock ppl.

The proper prep for a shaft is to burnish it. This will leave a perfect smooth and hard finish. But one must make sure the shaft isn't chrome plated first=0).

Then you must properly clean the mating hole. Toothpick in a collet of a flexible dremel works nice with some oil. If you leave metal or dirt particles in the brass(soft so it will embed naturally), it will damage the shaft and lead to needing work soon.
Clocks are not really my thing, I'm more a watch guy- got a 54' Omega in the cleaning tank today.

Michael

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Michael McGuire
83 300d
01 vw A4 TDI
66 Chevy Corsa
68 GMC V6 w/oD
86 300E