Hey, I am not a Tag expert but from my understanding the replica is very close to the gen, and I do think that the gen uses either the eta 2824 or the SW 200 but call it the Calibre 5 movement. I know our dealers say that they have the original tag movements in them and those ones have the SW200. I am not sure about the lume, it is probably typical replica lume though.
There is one being sold in the sales thread, if you want to go that route and if not any trusted dealer should have them too.
Hope this helps.