The seller would do better to describe it as "unpolished, as I want to leave that decision to the new owner". I think I see a barnacle.
What's the problem? That is an all original, unpolished, and unmolested specimen with unique and stunning PATINA...on the case!
a "case" of patina? no pun intended @Fritz has a few definitions here: http://omegaforums.net/threads/is-it-patina-or-pitting.20032/