Pre-owned Rolex Explorer II 16570 watches remain one of the smartest tool-watch buys in the collecting world. Built from 1989 to 2011, this 40mm stainless steel model utilizes a fixed 24-hour bezel and a distinct red GMT hand to track a second time zone. Inside runs the proven Caliber 3185 or 3186 movement. Thanks to its slimmer, more streamlined case profile compared to current catalog offerings, the 16570 wears exceptionally well. Frequent travelers and vintage enthusiasts gravitate toward this reference for its understated ruggedness, outstanding comfort, and legendary "Polar" white or stark black dials.