National Geographic : 1994 Dec
For explorers like Stephen Venables and Robert Anderson, a reliable timepiece is more than a convenience; it's a necessity. Braving the remote heights of Mount Everest without the aid of bottled oxygen, they needed to time their ascent with extreme caution. Their goal was to reach camp before sunset, when high winds and poor visibility make the mountain even Th more perilous. The timepiece they depended on was Rolex. W Part of what makes a But n Rolex Oyster so dependable is the design of its rugged case, which is hewn from a solid block of metal, using up to sixty tons of pressure. To the Oyster case, we add the Twinlock winding crown. Designed according to the same principle as a sub marine hatch, the Twinlock The Twinlock keeps winding crown keeps dust and moisture protects movement from the movement. rom the elements. from reaching the movement. One of the final additions . to the case is the scratch-resistant synthetic sapphire crystal. Together, the case, winding crown and crystal protect the Rolex move ment under even the most adverse conditions. it LC Every Oyster case is hewn from a solid ingot of stainless steel, 18kt gold or platinum. Rolex Oyster PerpetualExplorer II in stainlessstec Write for brochure. Rolex Watch U.S.A., Inc., Dept. 447, Rolex Build Rolex, ', Oyster Perpetual, Explorer II, Twinlo / < r faced Everest hout oxygen. t without Rolex. After undergoing a series of grueling tests at Rolex, Oyster time pieces are sent to an independent Swiss Institute, the Controle Officiel Suisse des Chronometres. There, each watch must success fully undergo fifteen days and nights of rigorous testing before it is awarded the prestigious red seal that signifies it is an Official Swiss Only officially certified Swiss Chronometers Chronometer. carrythis seal. The extraordinary process that goes into mak ing a Rolex helps explain why explorers find it valu able in any environment, from the frozen icescapes of the Arctic to the burning deserts of the Sahara. While there are many things explorers may need, a Rolex time iece is one thing they n't do without. ROLEX elwith matching Oyster bracelet. ling, 665 Fifth Avenue, New York, N.Y 10022-5383. ockand Oyster are trademarks.