Rolex Explorer II White Dial Real or Fake?

[atlantarolexj]

I found this watch in a lot of storage items in atlanta. I have had afew shops tell me its authentic but the crystal seems to have been replaced (Cyclops removed). The bands have 78760 on them with the numbers 750 on the end closes to closure. I cant seem to find a serial in between the lugs but it is one inside the back of it....??? Also I notice that these around here has the "Swiss Made" instaed of the "Swiss -T<25" that is listed on mine.
If its a replica t has to be one of the nicest that I have seen, especially when the entire lot only cost me $300.00!!!
However, I have heard that some earlier models of Rolex have had this instead of the "between lug" numbers. I am not an expert but was interested in knowing more on this piece.