Rolex Deepsea 116660

Born as the amalgamation of incredible new technologies developed by Rolex, COMEX (the French deep-sea diving company) and the US Navy during the late 60s, the Sea-Dweller is Rolex’s ultra-durable dive computer. In production for more than four decades, the 16600 model featured such pioneering technology as a helium escape valve and a 1,220m water resistance, and received a major upgrade in the form of the 116660 Deepsea model seen here. With a three-piece “Ringlock” case, “Triplock” crown system and 5mm sapphire crystal, this watch can survive pressures that would flatten a submarine. Its water resistance rating is an incredible 3,900m—deeper than the average depth of the ocean.