Rolex Collections
« SAPPHYTIMES SAPPHYTIMES 370 12/21/2024»Rolex produced specific models suitable for the extremes of deep-sea diving, caving, mountain climbing, polar exploration, and aviation. Early sports models included the Rolex Submariner (1953) and the Rolex Oyster Perpetual Date Sea Dweller. The latter watch has a helium release valve, co-invented with Swiss watchmaker Doxa, to release helium gas build-up during decompression. 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. Another iconic model is the Rolex GMT Master (1954), originally developed at the request of Pan Am Airways to provide its crews with a dual time watch that could be used to display GMT (Greenwich Mean Time), which was the international time standard for aviation at that time and was needed for Astronavigation during longer flights.[7