Continuing their partnership, nonnative and Seiko are back together again and this time they've come up with something a bit sportier with the new Timekeeper. The 50mm watch features a rotating inner bezel with a countdown timer, alarm function, chronograph, and a solar-powered quartz system that can keep the watch going for up to six months when fully charged. It also features LumiBrite hands and indexes, 100m water resistance, and and a rubber strap. 

$442, nonnative.com