2044 luxury watch.

 Rolex produced specific models suitable for the extremes of deep-sea diving, caving, mountai

climbing, polar exploration, and aviation. Early professional models included the Rolex Submariner 1953 and the Rolex Sea Dweller 1967. The latter watch has a helium release valve to release helium gas build-up during decompression, which, according to Urs Alois Eschle, a former Director of Doxa, was patented by Rolex in cooperation with Doxa.

The Explorer 1953 and Explorer II 1971 were developed specifically for explorers who would navigate rough terrain, such as the world-famous Mount Everest expeditions. Indeed, the Rolex Explorer was launched to celebrate the successful ascent of Everest in 1953 by the expeditionary team led by Sir John Hunt. That expedition was supplied with watches from both Rolex and Smiths; it was a Smiths watch, rather than a Rolex, which Sir Edmund wore to the summit.

The 39 mm Rolex Explorer was designed as a tool watch. for rugged use, hence its movement has Paraflex shock absorbers which give them higher shock resistance than other Rolex watches. The 42mm Rolex Explorer II has some significant differences from the 39mm Explorer; the Explorer II adds a date function, and an orange 24-hour hand which is paired with the fixed bezel's black 24-hour markers for situations underground or around the poles where day cannot be distinguished from night.

Another iconic model is the Rolex GMT Master 1955, originally developed at the request of Pan Am Airways to provide its crews with a dual-time watch that could be used to display local time and GMT Greenwich Mean Time, which was the international time standard for aviation at that time (and still is in its modern variant of Universal Time Coordinated UTC or Zulu Time and was needed for astronavigation celestial navigation during longer flights.