Interesting idea but not one I'd immediately spring to, that some owner took, apparently, great pains to deface his own dial with his name or initials for some reason! Or that he got some repairer to do this for him in what others have described here as such a ham-fisted manner!
Where, in over a half century of collecting I have never either seen or heard of anyone defacing their own watch in such a difficult, complex and intricate a manner. Especially where there is just such a position for someone to do exactly this, - on the back! Without pulling the watch apart. Where people can and often do do exactly this with their name, initials, expressions of love, good luck etc etc etc.
As for doing this on one's own dial, if you check, I think you'll find that (for example) Cuervo Y Sobrinos might well look like but wasn't some owner's name, it was what I alluded to in OP, - a retailer! Paul Buhre, written in english or cyrillic still isnt the owner's name!
