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So why did Dyhrenfurth's Rolex sell link for about half the price of Marmet's? Surely, it's not just because Marmet made it to the top of Everest, while Dyhrenfurth came up link short, right? (By the way, Dyhrenfurth did eventually summit Everest, leading the first link American expedition to the peak in 1963.) In addition to the honest condition and direct, straight-from-the-family provenance of Marmet's watch, it likely had to do with some of these interesting, unanswered questions about Dyhrenfurth's Rolex.