I bought the ultimate and made a franken with a gen dial and crown. So I was able to analyze the most important parts side by side, outside of the watch.
http://www.1-pc8838.com/cars00088bk-santos-ssle-white-swiss-2824-p-8914.html
The ultimate is by far the best Santos out there. You won't regret getting it. I have never seen the bracelet version but I find it strange they would do a new case/dial for it. The older models are not as good (that includes the PWC, WBK, etc.) in relation to dial, case, crystal or crown. The main issue with the ultimate Santos is the dial color. The gen is whiter than the rep. No way to fix that. However you probably won't see it unless you have the gen side by side. The ultimate dial print is actually different in size than the gen so the bevel on the face of the crystal seems larger than it is. You will need a new strap regardless of model. Without a real croc strap it will look off. I'm not holding my breath for the new A7753 chono Santos. The DW position on the A7753 is different than the ETA one so the dial is likely to have visible flaws. Also the older ETA 7753 based chrono had a yellowish dial (much like the ultimate) so I'm not 100% sure they will get the color right either.
I hope this helps.