Rep PAM 520 is a nice watch, just that. It cannot compete with PAM 388 or PAM 088 in accuracy
I assume you are talking about the best version available from KW-V6Fac and not the firts and really inaccurate version
Regarding KW-V6Fac version, I will repeat my comments in PAM GUIDE:
October 2014- KW-V6Fac released a rep PAM 520 correctly marked as Q-series and very nicely made too. Fitted with the same Venus movement Seagull ST-19 (wrongly called Lemania). This rep is very nicely made but has still important flaws in comparison with the gen.
Dial layout is good enough and inscriptions, printed markers are good enough, although PANEARI and RADIOMIR inscriptions are placed a bit higher. RADIOMIR and PANERAI fonts on dial are a bit narrower but accurate enough in practice. Subdials prints are accurate, with correct fonts and railway tracks and have correct recessed surface. Sandwich dial is accurate enough and has correct deep cutouts. Due to the Seagull layout crown, chrono pushers and subdials have a little different placements.
Hour and minute hands are way better than previously commented version but they are still inaccurate, mainly minute hand shorter and fatter. Lume is wider in both rep hands.
Central seconds chrono hand is also better than previously commented version, but the center of the hand is clearly smaller in rep (gen has a big center part). Since this hand in PAM 520 is golden instead of blue, this flaw is clearly less noticeable
The little hands on subdials are completely different on the rep with an arrow completely wrong. They were clearly better in previously commented version. This is a noticeable and serious flaw of KW-V6Fac version.
Dots & needles sandwich markers lume colour and shape and colour of inscriptions are more accurate than previously commented version, but inscriptions are a bit lighter and whiter than sandwich markers whereas gen has an uniform ecru colour in markers and dial prints. In this way the rep loses a bit of retro character.
Crystal is wrong sapphire instead of Plexi but it is good and correctly domed. This crystal is way better than mineral crystal of the rep above commented.
Case has accurate cushion shape. Crown is accurate with nicely made crown “socket” in the case under the crown. Chrono pushers are not perfect but much more accurate than above version. Inscriptions between lugs are well made and accurate enough.
Caseback is correctly and nicely engraved Q-series and “Au750” for the white gold material of the gen, but it has wrongly engraved PLATINUM. Very noticeable flaw for a quality rep.
Of course Seagull movement is nice but completely inaccurate although has some inscription on bridges to match the gen. This is an obvious flaw but Seagull movement is nowadays the only and best option for this rep.
In the same way the material is a necessary inaccuracy of this watch since the gen is made of platinum and the weight of the rep will be smaller than gen.
Hence this is a very nice rep, extremely well finished, made with a lot of pretentions but it has still obvious flaws even on dial. I was initially tempted to give it a a First Class evaluation, and the quality of the manufacture deserves it, but after seeing the flaws in the main hands, the center of the big seconds hand, the flaws in the subdial hands and PLATINUM engraving on caseback, the necessarily inaccurate movement and material, this rep cannot get such a status. We would say it is a very Good watch and a good rep nicely made bordering a First Class rep status. It is a pity because the watch is extremely well made and the finish is awesome. Of course much better than previously commented version.
More info of both versions here:
http://forum.replica-watch.info/vb/showthread.php?t=198771&p=2004342#post-2004342by Ruski91
http://www.repgeek.com/showthread.php?t=240496 by mclee
http://forum.replica-watch.info/vb/showthread.php/209403-Few-shots-of-my-PAM-520 by bobcat
As you can see, PAM 520 is really nice but far from a good rep.
Therefore if you are looking for a nice watch maybe PAm 520 is a very good option. If you are looking for a good and accurate rep, PAM 520 is not obviously your choice
ALE