Rolex 6263 big red bezel

[shiftf7]

Hi I'm looking for opinions on this 6263, I can't figure out what MK bezel insert this is. I couldn't match it to the known bezels i found on internet.

[swish77]

These old 6263 bezels are sometimes tough to ID, but there are a couple of things with that bezel I don't like, including the font thickness.

I never like to proclaim that a bezel is aftermarket off of one photo and without knowing background, etc .... but I also can't find a match. Compare to this breakdown of the four main versions of 6263 bezels, courtesy of Stefano Mazzariol.