National Geographic



Built for the Sea

Yesterday we got a look at the first wristwatch that keeps time at over 13,000 feet (4,000 meters).

“It’s a lot like our new sub,” said operations manager Dave Wotherspoon with a laugh. “It’s got a viewport, a penetrator plate, and a pressure-resistant ‘sphere’ to protect its ‘instruments.’”

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Team Genius

After long, sun-hot days on the Mermaid Sapphire and late-night conversations with captain Stu Buckle and his crew, the DEEPSEA CHALLENGE expedition team have come to understand an essential truth:

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Science Partners

  • Additional major support provided by The Alfred P. Sloan Foundation
  • NASA Jet Propulsion Laboratory
  • Scripps Institution of Oceanography, UC San Diego
  • University of Hawaii at Manoa
  • University of Guam