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Dear Philipp,
many thanks for your nearly scientific report, which I really enjoyed to read. You brought not only light but floodlight into the history of the DSS.

But please allow me to ask one more question: Was the DSS fitted to the Trieste 1953 (diving depth 3150 m) of the same design as the DSS fitted to the diving capsule of 1960 (diving depth 10916 m)? I assume: yes. This would mean, that Rolex designed the DSS already 1953 for withstanding a diving depth of nearly 11000 m, even if the Trieste 1953 “only” went down to 3150 m and there was no bathyscaph available for going down to the Challenger-Deep at that time. Consequently the project Challenger-Deep was then already in their minds beginning of the 50ies.

One remark beside the DSS:
As commonly known, the diving capsule underneath the Trieste was made by the german Fried. Krupp GmbH in Essen. There is a humorous story about the personal inspection of the capsule by Berthold Beitz, who was the general manager of Krupp at that time (today he is 98 and still holding all the power within ThyssenKrupp as president of the main shareholder “Alfried Krupp von Bohlen und Halbach Stiftung” comparable to the “Hans Wilsdorf Stiftung”). When Beitz was inside the capsule one of the Krupp-directors said loudly: “And now close the door, let it sink down and we will see him never again”. But Beitz heard the remark, came out of the capsule, loughed and answered “Wishfull thinking”. You have to know that Beitz was a very modern manager at that time and the old fashioned Krupp-directors found him really “shocking”. Beitz tells this story still today. In my files I have photo of Beitz during the capsule inspection (when I remember it right together with Piccard), which I can scan in case of interest.

Once again many thanks for your remarkable work, Philipp.

Regards
Matthias
MAny Thanks Matthias!!

Was the DSS fitted to the Trieste 1953 (diving depth 3150 m) of the same design as the DSS fitted to the diving capsule of 1960 (diving depth 10916 m)? I assume: yes.

Personally, I don't think so as when we read the first Rolex description we know now that they did test 2 DSS in several test finally waterproof to 600 atmosphere ( Which mean 6000 meter ) and not to 11.000 meter the 1960 dive with Piccard & Walsh was at Challenger Deep.

We see also that AFTER 1953, the Trieste got a new bathyscaphe, capable to 16km, 1.5 times more then the necessary 11km. We also see that the first DSS Proto got a less high glass as the later ones so there's a grey area between the development Rolex did BEFORE 1953 and the final 7 miles down waterproof from 1960 but logically the first DSS that handled 3150 meter is NOT the same as the one that got to 11.000 meter. Soon I'll report more about the changed Rolex design that finally made it to deepest place on earth. As always i'm waiting for responses ( from Smithsonian Institute ) to come to a logic conclusion.



Don Walsh der mir mein 7 Miles Down Buch von Piccard signiert hatt, lätstest JAhr als ich die lebende Legende in Genf begegnete.



gr.Philipp