Read on here. Check the FAQ section and take your time. The reps are not the same quality as the gens, and you do get what you pay for. One tutorial said the rep movements will break down at some point, but if you take care of them they'll do better. I'm still new, but that logic is easy to understand. Who gave you the cautionary remark? Then it gets into the what's it worth, do you want 1 gen or 10 reps (which can be fun).Great watches.. I attempted to order an IWC yesterday but was warned that the movements in the reps are "unstable" what's you're experience and what dealer specializes? I'm a noob and appreciate the direction.
Read these:
http://forum.replica-watch.info/vb/showthread.php/proper-care-and-feeding-watches-43573
http://forum.replica-watch.info/vb/showthread.php/tutorial-replica-ownership-dos-and-29026
And I love the IWC on the right, it's like my Lucien Picard.