Seiko's popular Prospex lineup adds some new colors to its Street Series collection with the launch of "Urban Safari." Colored in khaki, light grey, and green, the watches come in two designs with the first two inspired by the Tuna (left) with its 43mm stainless steel case, Hardlex crystal, and an automatic Cal. 4R36 movement with a day/date function and a 41-hour power reserve. The Arnie (right) models feature a 47.8mm case, Hardlex crystal, and a solar-powered Cal. H851 movement with an LED display, automatic calendar, and chronograph.