Specifically, the seiko 5. I'm considering buying a seiko 5, snk809 or 805, but I've never had an automatic before. How delicate are these watches? I've been reading a bunch of things about how an automatic is more delicate than a quartz, but then on the flip side, I've read of people buying the seiko 5 as a "beater" watch. So how much abuse can the watch stand? Would it be safe to play volleyball with one on? And is the 30m water resistance a concern? And much more trivial, but which color, in your opinion, looks best? Black or green?