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====== Bühlmann Decompression 02 ======

{{wst>image_cr|Bühlmann|Decompression 02}}

**Decompression 02** is a dive watch by Bühlmann Dive Watches and is produced and promoted by [[Watch Angels]]. It was launched in December [[2025]].

The Decompression 02 is the functional and usability evolution of the  Bühlmann Decompression 01, first introduced in [[2021]]. It is the first mechanical dive watch to feature a Twin Safety Diving Bezel and a Twin Decompression Stops Dial to safely manage decompression stops for dives in the "Golden Zone".

The foundations of modern dive safety were laid by Prof. Albert A. Bühlmann, whose pioneering research from the late 1950s to the 1980s resulted in the ZH-L16 decompression algorithm, a model still employed by most dive computers and tables today. Bühlmann's work was revolutionary for its completeness, as it addressed decompression at sea level and at altitude, thereby creating a model applicable to the full range of diving environments. 

The Decompression 02 incorporates the ZH-L16 decompression algorithm and has been conceived in collaboration with professional divers. Furthermore, it has been functionally validated by decompression science specialists, including former members of the Bühlmann research team, the Divers Alert Network (DAN) Europe and the World Underwater Federation Switzerland (CMAS Switzerland).

The watch features the Bühlmann Twin Safety Bezel®, a twin diving bezel that enables the separate tracking of the total dive time (TDT) and decompression stops (DS), each with its own fail safe blocking direction.

<WRAP ud ud_mod>
The 48.50 mm stainless steel Decompression 02 with [[ceramic]] [[bezel]] is powered by a slim Swiss made [[Sellita]] [[SW 300]] mechanical [[automatic]] movement and has a [[sapphire crystal]]. 

  * **Legacy-based design and usability:** Inspired by Bühlmann’s original circular decompression calculator with "Golden Zone" logic: 17 most frequent dive profiles and a "fly-no-fly" segment

  * **Twin Safety Bezel®:** Two counterrotating bezels for total dive time (clockwise block) and deco time (counterclockwise block) 

  * **Twin Decompression Dial®:** Two dials with a rotating sub-dial featuring the ZH-L16 decompression data, visible through a sapphire opening
  * **XXL minute hand:** Enhanced readability for timing decompression stops, total dive time and bottom time

  * **Minimalist hour hand:** Keeps visual focus on the minutes hand and the dive and decompression timing

  * **5° case inclination:** Improves dial legibility

  * **Helium valve:** to prevent damaging the watch after prolonged stays in mixed gas pressurised atmospheres

  * **Flexible strap joint:** Adapts the watch to all wrist sizes for maximum fit and comfort 

  * **Detachable Strap extension:** providing the extra length to wear the watch over your wetsuit

  * **Concave case back:** for extra wear comfort 

  * **575m water-resistance:** a depth that matches Bühlmann's own hyperbaric record and the necessary water-resistance with a sufficient safety margin for diving in the "Golden Zone"

  * **Special dive box:** a unqiue box for that special gift and a practical box to travel with the watch

  * **Swiss made:** a guarantee of horological quality, manufacturing standards and manufacturing sustainability
</WRAP>

{{tag>Watch_models Dive_watches Watch_Angels_models}}