Ah, crap. As I suspected, then, something is off in the movement. Now for the thousand dollar question: is this something that needs to be taken care of, or is it more of a cosmetic issue?
I'll check out the R2D4 thread, and thank you for your time!
*edit* And to answer my own question: it seems that the stem is a tad too short, and this is a common problem with the POs. Several members seems to experience said problem, but I could find no-one who actually have had issues with the movement due to this. I can only surmise that this is more of a cometic issue then, and I'll wear the watch in very good health.
I searched for "short stem" in the Omega subforum, should anyone want to read the threads I read.