Sjors is *the* G-Shock guy here on WUS and mods that forum.
While this has nothing to do with the vintages we usually talk about here - Casio's line of G-Shock watches hasn't been around long enough to be "truly" vintage - this is a great post on a blog he contributes to about what the Japanese call "wabi", which has *everything* to do about what vintage watches can mean.
It's an elusive concept at best, but one that at I understand. Back in a former life, I studied philosophy and was all but dissertation at one point, going for a PhD in that area. One of major interests was/is the philosophy of technology, or more exactly, how tools become transparent to the craftsman: if you talk to truly great craftsmen, they want tools that are so transparent to them that they don't think about them, but rather have become an extension of themselves: the screwdriver that is an extension of your finger, figuratively speaking, or how a camera, as a working tool for the photographer, enables him to capture what he "sees" (in the sense of previsualization of final results, one of the key differences between amateurs and professionals).
Wabi is, in keeping with what Sjors wrote at the link above, the wear and tear on such a tool. It is the sum of how that tool changes from something brand new, indistinguishable, to something that is intensely personal and in some ways may never even be usable by someone else.
Take a look and think about that when you contemplate a vintage watch, with all its warts and dings, with the aged face and scratched back, with lume flaking and battered bezels. That's not wear, that's not a degradation of the original, that's wabi.