Trying to find info on movement identification

[Earl Stedman]

Hi I'm working on a "Seth Thomas" triple chime grandfather and would like to learn how to read the movement codes.
I found that Talley owned the company from 1969 -1988. On the plate it says

MADE IN USA FOR
SETH THOMAS
A TALLEY INDUSTRIES CO
NORCROSS , GA . USA

8506

A 415 - 013
Thanks for any help Earl

[harold bain]

Hi, Earl. The movement was made by Hermle, and the numbers indicate a Hermle # 1161-853BS/94.
Made in June, 1985.

[Earl Stedman]

Thanks Harold Anyway I can learn to how to identify the codes ?

[harold bain]

Earl, I have a sheet that Butterworth Clocks sent me out many years ago (2004), with all the conversion numbers. Perhaps if you contact them, they might still have this available.
If you repair clocks on a regular basis, this sheet helps you to know if there is a replacement movement available in case you would prefer to do a direct replacement rather than overhaul the existing movement.

[Earl Stedman]

Thanks Harold I've already rebuilt the movement and it's running great. I will try and find a copy. I did find the Hermle Service Manual lots of good info.
Earl