You don't have to throw down some major Rolex-level cash for an extremely stylish and versatile automatic dive watch. Each of these are battery free and can withstand pressures at insane ocean depths like nobody's business with a price tag under $500. Can't beat that combo.
Seiko SKX007K2 Automatic Dive Watch, $275: Seiko priving time again that their watches are the best bang for your buck. This piece especially is something all "watch guys" will respect, even if it didn't cost you an arm and a leg.
Squale 200 Meter Classic Swiss Automatic Dive Watch, $489: You can't beat how classic and simple this one is, making it an easy everyday watch that can go from poolside to boardroom without breaking a sweat.
Steinhart Ocean Series Automatic Dive Watch, $430: This one has a really amazing vintage-y look it.
Orient Mako, $285: 80% of the style a vintage Rolex GMT "Pepsi" has for 4% of the price.
Anstead Oceanis, $499: This bad boy is big, beefy, and stylish. If you're the kind of dude that is instantly attracted to a lot of what Breitling has to offer, this one is for you.