Thomas was at the factory last week to approve the dials and the hands of the Måne. The “Day” model dial and hands were assembled on the movement and Thomas gives us an overview about how you read the moon phases on this model


I first found out about the CB01 after the initial offering had just sold out. As the release date grew closer and production pictures started making their way to the internet, my sadness only grew as I was increasingly enamored with this timepiece.

After posting in this forum looking for…


See how the innovative decompression security stops bezel works. It allows you to unlock or lock the screw-in crowns and the screw-in helium valve.

The Bühlmann Decompression 01 is in pre-sale on Watch Angels https://watchangels.ch/buehlmann-watches/


The record dive to 575m — test n° 373

In test №373 from January 28 to February 5, 1981, the record depth of 575m was reached in the Hyperbaric chamber of the University Hospital of Zurich.

By changing the procedure in the compression phase, the effects of the “High Pressure Nervous Syndrome” could be alleviated.

Soon after this…


As reported in episode 5 of the Bühlmann story , the old hyperbaric chamber of the University of Zurich, built in 1963, met the requirements for a modern laboratory less and less. The diving depth was limited to 300 meters. The space was also limited, especially with regard to the…


Construction of the new hyperbaric chamber at the University of Zürich

The old hyperbaric chamber of the University of Zurich met the requirements for a modern laboratory less and less. The diving depth was limited to 300 meters. The space was also limited, especially with regard to the treatment of…


About four months ago at Watch Angels we were approached by Thomas Bühlmann, the Son of Professor Albert A. …


Developing procedures for carrying out long-term dives at depths of up to 700 m

In November 1963, A. Bühlmann, Shell International Research and Micoperi agreed a research and consultancy agreement. A. Bühlmann also became minority shareholder in a collecting society for intellectual property rights with the majority shareholders Shell International Research and Micoperi.

The contract provided for the establishment of a positive pressure laboratory…


By Stan Czubernat, Waltham historiand and Author of “Waltham Trench Watches of the Great War”

I have some wonderful news to share today! All of you probably already knew Charles Depollier is my favorite figure from horological history.


The Swiss and their quest for depth

A few months after the 250m dive in the GERS hyperbaric chamber A. Bühlmann and Hannes Keller were back in Toulon. In advance, they tested a target depth of 210m in a one-person hyperbaric chamber in Zurich.

The overpressure chamber only allows a…

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