Bearcat, what are the differences in the rep dial and a gen. I haven't had mine next the a gen but it looks ok to me. May the waves are more pronounced on the gen? I had a gen SMP a few years back and thought it was the best feeling watch I ever had on my wrist. That's why I bought the GMT, it's a great size, slightly larger than a Sub and not as heavy feeling as a UPO.
Here's some more about the band upgrade. I found an original GMT band on eBay, but the buy now was too high for me. It didn't sell so I offered $120.00 and he took it. The clasp on the band was the cheesy liitle single lock with the gold Omega logo and the band was too short. I had a nice (engraved not etched) SMP rep clasp so I swapped it for the original clasp and by doing so, I had to remove a few links in sizing. I also had a set of rep end links that matched the gen band better than the gen endlinks so I installed them. After redrilling the lugholes and installing the band, I had the gen GMT clasp, 3 links and 2 end links left over. I put them back on eBay and sold them for $90.00. That worked out great!