"Slight" noise wouldn't be a concern to me, but what each person decides is "slight" is the problem, as your slight might be very different from mine. If I look at the photo of the movement you posted, there appears to be some wear on the rotor:
Look at the rotor at the left and right arrows - the corner of the rotor weight is very sharp. At the middle arrow and a little to either side, the corner is worn. This indicates that the rotor has at some point been rubbing on the inside of the case back. You may be able to see a ring of wear inside the case back that corresponds to the diameter of this spot on the rotor.
What we don't know, is if this is old wear or current wear. If someone has replaced the rotor bearing, it may no longer be contacting the case back.
So, if you have the case back on, and you shake the watch so that the dial goes away from you then towards you, and you hear the rotor hit the case back, the bearing is worn. Another way to determine this is with the case back off, and looking at how much play is in the rotor bearing. Here is a video showing an 1120 rotor that has a worn bearing in the first clip, and then what the play looks like after the bearing is replaced in the second clip:
If the bearing is currently not in good shape, then likely the rest of the movement needs servicing as well. You can either use Omega, or take it to a watchmaker that will do the full job - that includes servicing the module, not just the base movement. Just servicing the base movement is only doing half the job.
Hope this helps.
Cheers, Al
