The Panerai Luminor North Pole GMT was originally introduced back in 2006, but is still considered as one of the greatest and most iconic designs to ever be produced by the renowned Italian watchmaker. This particular timepiece pays homage to Mike Horn and Borge Ousland, who happen to be the first explorers to traverse the Arctic to the North Pole unassisted. The watch features an antimagnetic iron case with a leather strap. Other distinguishing characteristics include the “NORTH POLE” notation on the dial and the explorers’ signatures engraved on the caseback. The highly limited piece (500 units) can still be found for under $10,000 USD.