Released in 1953, the Rolex Explorer is the tool watch in its purest form. Made to commemorate Sir Edmund Hillary and Tenzing Norgay’s ascent of Mt Everest, the Explorer combines purposeful design with a durability able to withstand harsh conditions, even at the top of the world. The beauty of the Explorer is in its simplicity. A three-hander with a plain black dial, 3-6-9 markers and brushed stainless steel case give it an understated look that works in both casual and formal settings. It’s a winning formula that Rolex has not significantly altered for over 60 years, save an increase to a 39mm case and judging by its continuing popularity, it’s not one they will need to worry about.