Featuring glow-in-the-dark hour markings shaped like shark teeth and a water resistance of 200 meters, the Seiko Monster Automatic Watch is a classic diver. It's equipped with a 24-jewel 4R36 automatic movement, so you won't have to worry about it ever running out of battery while on a dive. And thanks to the LumiBrite hour markings, the watch is easy to read, even at the darkest depths.