Another bump! Looking to find out the same as nycreplica above...
This thread is 9 pages long, so a quick summary seems reasonable: Here we go: If they say Swiss, doubt it. However, if a particular movement costs more, the implication is that it's better quality. So, the issue is, what's your budget, and do you want a "better" movement. I have evolved a bit. My 21j PO (planet ocean) feels totally clunky when changing the time or date. My chrono with a 7750 feels as smooth as my Gen Seiko. So, an Asian 2824 will be better than a 21j movement (might last longer and will feel better when changing stuff - but not infallible), and do you want to spend the extra for an "eta" that might make for a better fake...er..rep watch.
if you KNOW you want that watch, spend up a bit. If not sure, some guys will get a 21j version to see if they like the look, if not, they sell it. If yes, they sell it AND get the better version. Thought this was all easy didn't ya? Problem is, we're all obsessed, and part of this is the acquisition of stuff that we never really satisfy.
Whew! Good luck