Here are more suppliers who may be able to help with Swiss pocket watch parts
Scotch Watch Parts: Located in Texas. Rolex, Omega, Longines, etc. Many parts for Swiss pocket watches.
Rudolf Flume – located in Germany
Global Watch Straps – located in The Netherlands
Ernst Westphal– located in Germany
Northern Watch and Clock Supplies– located in Great Britain
Custom Watch Parts – if you can’t find the part you need, Henning Horological Fabrication can make the part for you.