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It's funny how often people think that any less-common variation must add value. More often, an unusual variant can actually hurt value because buyers are suspicious and just don't want to take a chance on it. There are so many ridiculous websites that list dogmatic information about which dial variation goes with which serial number range for various watch models. God forbid you have a watch that falls even slightly outside those ranges.
What a strangely defensive reaction to my comment, which did not mention either of your sites specifically.
As someone who runs two reference websites ( gmtmaster1675.com and explorer1016.com ) I say on several pages that all the serial range-dial matches are empirical, a best guess based on what I and others have seen, correct watches can definitely fall outside the ranges, etc.
I think there's reasonable scrutiny for something that lies far outside what's known versus something in the penumbra. Given how poor dealers are and "noticing" when a watch is put together, I think these dogmatic sites have done far more good for collectors than evil, but thanks for your nice comment.