To my knowledge, CZ-UB has never produced a deep, high-gloss blued finish of the type seen on pre-war S&W revolvers or commercial Colts. I have never seen any of their pre-war export CZ-24s in mint condition, but my understanding is that these were about as close as it gets.
In English translation, all of the CZ-UB literature refers to the CZ-75 Type A finishes as either "gloss blued" or "matte blued." The "gloss blue" specimens I have seen (all heavily used) don't look nearly as good as the photo CZU posted above. That said, you may notice that CZU's pistol does not have the depth and accents associated with pre-war hot bluing or color case-hardening techniques. (To be fair, that may be a lighting problem; I have found that photographing firearms is not easy.)
I have seen pictures of a few short-rail specimens with beautiful blued finishes, but I suspect these were done by Frankonia or some other third party.
The best OOB finishes I have ever seen came from Frankonia and Sphinx/ITM. Frankonia finishes are mostly "refinishes" in the sense that they bought pistols from CZ-UB in various states of completion and "re-worked" them for sale. To clarify, some of these pistols were essentially just routed through West Germany to "legalize" them, while others were bought before finishing and heavily modified by Frankonia or its subcontractors before bringing them to market. I have seen pictures of some very nice Frankonia blued finishes. To my knowledge, Sphinx/ITM essentially bought some Tanfoglio components and built what we would now call semi-custom pistols on that platform. (I can't recall the model, but Sphinx did have a relatively "cheap" offering that may have been just a dressed-up Tanfoglio as well.) Their finishes are all outstanding, but I have never seen one with a uniform, deep, high-gloss blued finish. They tend to be two-toned, as do many Frankonia models. That said, I wouldn't be surprised if an overseas member posted a pic of a Frankonia or Sphinx pistol that fit the bill. These were not mass-produced handguns as we would understand that term.
That said, there are literally hundreds, if not thousands, of people in the U.S. that could produce the effect you desire by refinishing.
