another one just surfaced, amazing watch !
"I have a Sea Dweller that was given to my Father by the Rolex Co. in 1969 after he completed the longest sustained saturation dive in an underwater habitat called Tektite1." Brett Waller
On February 15, 1969, four U. S. Department of Interior scientists (Ed Clifton, Conrad Mahnken, Richard Waller and John VanDerwalker) descended to the ocean floor in Great Lameshur Bay in the U. S. Virgin Islands to begin an ambitious diving project dubbed "Tektite I".By March 18, 1969, the four aquanauts had established a new world's record for saturated diving by a single team. On April 15, 1969, the aquanaut team returned to the surface with over 58 days of marine scientific studies. More than 19 hours of decompression time were needed to accommodate the scientists' return to the surface. The United States Office of Naval Research coordinated Tektite I.
Much of the research for Tektite I centered around humans in this new environment. Topics investigated would include: biology (blood changes, sleep patterns, oxygen toxicity), decompression and decompression sickness, microbiology and mycology.