For me its the case shape and bracelet that I don't see often. The way the bracelet plays with the light like a RO though not to the same extent. At first it looked like an angular version of the skx braceletNo, not every watch has to be interesting. But if I'm spending multiple thousands on a watch, I don't want something that looks like any mall brand could have put out.
What specifically is appealing about that King Seiko, for instance?
Edit: some people like to blend in, where as others like to be more "interesting" (RM for example)