To be brutally honest I stay well clear of any movement modded away from its original design. Add complications and you add chances of it going wrong
Same problems with the IWC Portuguese and the Rolex Daytona an they all involve a movement where the runnin seconds have been moved from its intended location to another area
In the case back there should be a small thin crimped washer. Thus holds the amag cover in place
If you don't have one I think I may have a spare at home
If you don't service it it will just get worse quickly
You have cleaned 10% of it (proberbly badly) there are at least 4 different oils you should use after a complete tear down and clean and believe me non are simple house hold oils
Do you self a favor and get it done properly
http://forum.tz-uk.com/showthread.php?234844-FS-Rolex-93150-bracelet-501B-endlinks
nothing to do with the seller but i thought some one here may want this
Although I feel for you situation the moderation team here is the
Moderate site content not mediate private sales. If you feel you have an issue them make a post about the seller naming him or her and ask them to respond.
That will have two effects that if the seller is less than honest then it will halt any possible sales to other members and it will force the seller to respond. If they ask why you made a public post you point them in this direction.