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Bühlmann Decompression 01

The mother of all deep dive watches. From the Swiss pioneer of depth and dive security.

Bühlmann Decompression 01

The mother of all deep dive watches. From the Swiss pioneer of depth and dive security.

Algorithm

The bezel features the Bühlmann decompression scale to manage security stops

575m

Water-resistant to 575m – 1668ft with helium valve.

5 Degrees

A dial inclination of 5 degrees optimises the dial readability for diving

Push Lock-Unlock

The turning bezel mechanism locks and releases the crowns and helium valve

Bühlmann Decompression 01
The Mother of all Diving Watches

BH01-DK
-1% Units left
(-1 out of 99)

Numbered Edition (LIMITED ANGEL EDITION SOLD OUT)
Automatic Sellita SW261 small seconds movement
Matte “Druckkammer” colour scheme dial
57.5ATM/575m/1886ft WR
Helium valve
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

 

CHF 1,095.00
Webstore Price CHF 1,495.00
Angel reward - 400 CHF
BH02-DK
0% Units left
(0 out of 39)

Limited Angel Edition of 39
Automatic Sellita SW200 movement
Matte “Druckkammer” colour scheme dial
35ATM/350m/1150ft WR
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

CHF 895.00
Webstore Price CHF 1,295.00
Angel reward - 400 CHF
BH01-BLUE
0% Units left
(0 out of 39)

Limited Angel Edition of 39
Automatic Sellita SW261 small seconds movement
Sunburst navy blue dial
57.5ATM/575m/1886ft WR
Helium valve
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

CHF 1,095.00
Webstore Price CHF 1,495.00
Angel reward - 400 CHF
BH02-BLUE
0% Units left
(0 out of 39)

Limited Angel Edition of 39
Automatic Sellita SW200 movement
Sunburst navy blue dial
35ATM/350m/1150ft WR
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

CHF 895.00
Webstore Price CHF 1,295.00
Angel reward - 400 CHF
BH01-BLACK
0% Units left
(0 out of 39)

Limited Angel Edition of 39
Automatic Sellita SW261 small seconds movement
Matte black dial
57.5ATM/575m/1886ft WR
Helium valve
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

CHF 1,095.00
Webstore Price CHF 1,495.00
Angel reward - 400 CHF
BH02-BLACK-1
0% Units left
(0 out of 39)

Limited Angel Edition of 39
Automatic Sellita SW200 movement
Matte black colour scheme dial
35ATM/350m/1150ft WR
Bühlmann security stops bezel
Inner ADT bezel
5 Degrees case inclination
Fly-no fly indicator
Rubber strap
Swiss made

CHF 895.00
Webstore Price CHF 1,295.00
Angel reward - 400 CHF

In-Depth Features

Swiss Made

Technically developed, industrialised, manufactured and hand assembled in Switzerland

Dive Specs

575M-1866FT water-resistant construction, helium valve, safety lock-open decompression bezel, inner 60min ADT turning bezel, big minutes hand, 5 degrees case inclination and ana-digi time display. Fly-no fly indicator. Intercheangeable security stop bezels

Mechanical

Swiss made Sellita small seconds SW261 and Sellita 3 hands SW200 automatic movements

Top Grade

Superior machine finishing. Anti-reflective sapphire crystal. X1 grade Superluminova® luminous. 316L Stainless Steel case. Genuine rubber strap.

The Bezel Push Lock-Open System

Press the bezel down to unlock or lock the screw-in crowns and helium valve

The Bezel Push Lock-Open System

Press the bezel down to unlock or lock the screw-in crowns and helium valve

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3

Production and Reservation

In-house at our manufacture in Switzerland

In-house at our manufacture in Switzerland

Manufacturing

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Updates

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October 2021 - April 2022

Watch delivery May 2022

4

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Prices start at CHF 1.295

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June 2022

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Meet Albert A. Bühlmann

Professor Albert Alois  Bühlmann (1923 – 1994) was a Swiss physician who significantly contributed to decompression science at the University Hospital in Zürich. His significant impact on diving ranged from complex commercial and military diving to recreational diving. He is held in high regard for his professional ethics and attention to his research subjects.

His decompression model and gas mixture procedure were the requirement to multiple diving records: 1959 Lake Zürich, Switzerland (120M), 1961 Brissago, Switzerland (220M), 1962 Catalina Islands, California (311M), 1966 Porto San Stefano, Italy (220M exposure to saturation), 1969 Alverstoke, UK (350M exposure to saturation) and finally in 1981 the  575M record in the Zürich hyperbaric chamber. From 1964 onwards he has been concentrating on safe decompression procedures for professional divers on long-term dives to great depths that have allowed the development of new oil and gas fields in the area of the continental shelf

The results of Bühlmann’s research that began in 1959 were published in his book “Decompression”. This book is regarded as the most complete public reference on decompression calculations and was used soon after in dive computer algorithms.

 

The Druckkammer

At the beginning of the 1970’s, 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 accident victims. There was also no water tank in which diving missions in the water could be simulated. In addition, there was no efficient helium cleaning and recovery system.

With the financial help of the Canton of Zürich, the Federal Military Department and Shell International a new state-of-the art hyperbaric chamber was built.

This new overpressure chamber with a water tank was designed for an overpressure of 101ata, which corresponds to a depth of 1000m.

The new hyperbaric chamber was put into operation in 1975.

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