Problem with these automatics by design is they don't like to be manually wound. Ratios on these types are designed to give it a fast jump-start. The zigmaster did some explaining about this issue, however can't seem to find the post anymore.
I know how you feel, it is a shame to butcher perfect genuine watch. I got 2 ebel's with primero movements for my daytona project, but can't get it over my heart to tear them appart.
Anyways, wear it well!