I recently acquired my watch from an antique warehouse. Over all the watch is in great condition, the only troubling thing about it is the fact that the movement is loose inside the case. It my first Bulova watch and I wasn't sure if this might be a common issue. I thought that maybe there wasn't a movement retaining ring, but there is. When I pull the crown out to adjust the time the whole movement and dial moves within the case. I was curious how I could fix this. Having read a little I was thinking either case screws or a retention ring/gasket. Any ideas and if so what are the model numbers of the parts... Thanks, any info would be appreciated. 
The ring on the outside of the movement- the spacer- does it have little "slits" around the top edge? Sometimes these have been flattened by time, and should be slightly arched so as to come into contact with the case back upon tightening down, thus holding the movement still in the case.
Bob.
Just had a look, nope every thing is perfectly smooth and solid. I believe the spacer/movement retention ring fits perfectly, yet does not seem to sit against the case back. I'm curious if there was a rubber gasket or a metal retention ring missing....really not sure sine I haven't a real clue!
thanks,
Kyle
Found an interesting pic on ebay and another on the web of a wavy ring that seems to sit inside the case back. Seems to me that this might be the answer I was looking for. If so now I just have to try and find out what it's called and of course how I can get one! I'll try to post a pic....
