Rolex Explorer II is a professional tool watch for adventurers and polar explorers, launched in 1971 with the iconic ref. 1655 “Freccione.” It features a fixed 24-hour bezel and an orange 24-hour hand — a unique GMT watch and a statement of Rolex’s expedition heritage. Available in black and white “Polar” dials across 40mm and 42mm case sizes, the current generation runs on the Caliber 3285 with 70-hour power reserve. Browse the full Rolex collection or shop Explorer II models below.