Doxa Sub300T Professional 50th Anniversary Edition

Model: Doxa Sub 300T Professional 50th Anniversary Edition (ref. number 879.10.351.10)

Condition: used, very good condition, revised by watchmaker

Year: 2020

Case: stainless steel

Dimensions: 42.5mm diameter, 44.5mm lug-to-lug

Dial: orange with painted hour markers, date at 3 o’clock

Movement: ETA 2824-2 automatic movement, up to 42h of power reserve

Glass: sapphire

Bracelet/strap: original Doxa beads-of-rice stainless steel bracelet with folding clasp and spring-loaded diver’s extension

Water resistance rating: 120 atm (1200 meters)

Functions: date

Content: watch with original box and warranty card


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When you hear the brand name “Doxa” your thoughts go immediately to diving watches and the iconic Doxa Sub. However, this is a brand with a much richer history, created in 1889 in the Swiss region of Le Locle by Georges Ducommun. Throughout the years you could find Doxa timepieces setting the standards in automotive (such as Bugatti), nautical and aviation context.

First launched in 1967, the Doxa Sub 300T has established itself as one of the most recognisable diving or utilitarian watches in the market. Its success was determined by the many new features it presented, such as the unique bezel with an inner elapsed time scale and an outer secondary ring with the United States Navy No-Decompression dive chart (allowing the wearer to determine decompression times and safe periods between dives). It was also supported by the diving world legend Jacques-Yves Cousteau and the United States Divers group.

Besides its patented bezel, the DOXA Sub 300T models are available in a few different dial colours (including the characteristic and iconic orange dial, that was a first in dive watches when it was introduced), a “cushion” case, box glass and a “beads-of-rice” bracelet with a spring-loaded diver’s extension, all of these creating the DOXA SUB300T iconic design.


The timepiece we’re presenting is not just another Doxa Sub 300T Professional with its unique orange dial with Super LumiNova details. This is a reference number 879.10.351.10, the 50th Anniversary Edition released in 2019, celebrating the 50 years of the launch of the Sub 300T Conquistador that was the first general diving watch with a helium release valve. Its case and bracelet are made of 316L stainless steel, the later featuring a folding clasp with the Doxa symbol. Along with its patented bezel and a sapphire crystal, this watch is waterproof to a depth of 1200 meters, rated to pressures up to 120 bar. This watch comes in the original Doxa box, with its original warranty card, as seen in the photos, and has been revised by an experienced watchmaker.


This is the diving watch that shows your acquaintance, wearing a respectful and dependable brand with a special model associated with a rich horological history and real-world deep seas adventures, that will go down in time as one of the most iconic diving watches ever produced.

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