Seiko Prospex Sea Diver's Chronograph Solar Watch

Though you’re more than welcome to dive into the ocean with this robust chronograph, it actually gets its power from the sun. Backed by Seiko’s own V175 solar movement, the watch works by charging the photovoltaic cells inside, which, theoretically, means it can run forever (or, at least a lifetime). Aesthetically, the dial is rather crowded, but it doesn’t sacrifice legibility. Like any good diver, it’s got sizeable hands and markers and plenty of lume to emphasize them. The chronograph, which is operated by the pushers at 2 and 4 o’clock, features a 60-minute subdial and a 24-hour subdial. Running seconds is indicated by the subdial at 9 o’clock. Also notable is the unidirectional rotating bezel and 200-meter water resistance rating.