I don't know where you can source the correct version guys. Lots of people would love to know. It's the old version that bklm1234 and I have... they're very difficult to find.
This thread explains the differences between the models.
http://www.rwg.cc/members/index.php?showtopic=22848
@TA: Oh yes, that one from dluddy... it's a beauty. But I doubt the gen dial would fit, just because that model has the cyclops and date mag positioned too right. On the gen and the old version is positioned correctly (more to the left). And to make it even more complicated there are two different rep versions of the old model too. Believe it or not, the other has correct dial diameter, the other doesn't.
PS: I owned that exact same black ExpII model and the cyclops thing wasn't even noticeable... just enjoy that great rep as it is.
PS2: If you're going to change a black ExpII to white, you have to change the hands too. Hands are matte black on the white and silver on the black (just like the hour marker surroundings).
Here's a shot of my black version (same as yours):