DOXA Sub 300 "Black Lung" Limited Edition

DOXA Sub 300 "Black Lung" Limited Edition

Why We Love It

Here at Analog/Shift, we’re known for our love of DOXA. In any flavor, any color, from the common yet wonderful orange-dialed Sub 300 Professional to the black-dialed Sharkhunter, the Army, any anything in between, we’ve counted them in our personal collection and offered them on our site. But our love of the brand doesn’t end with the vintage versions. DOXA is still around, and still manages to surprise us. Such is the case with this watch, a Sub 300T Aqua Lung Edition.

Jacques Cousteau, the father of SCUBA diving, wore DOXAs in his expeditions, and loved them so much that he offered them for sale through his company, U.S. Divers. The Sub 300s that were retailed by U.S. Divers featured the distinctive black Aqua Lung logo, which gave rise to the nickname “Black Lung.” Very few of these were produced, and nowadays get snatched up by collectors so quickly that they’re not often seen on the vintage market.

But in 2017, DOXA released a limited edition of the Sub 300 in honor of the model’s 50th anniversary—one of which we offer here, complete with outer box and warranty card. The pieces are faithful to the originals, with 42.5mm cases and bezels adorned with the U.S. Navy No Decompression chart. And the dial, of course, has that famous Aqua Lung logo, resulting in a vintage-inspired dive watch that we'd love to take to the seas. 

The Story

DOXA began Research and Development for the Sub 300 in 1964, under a team helmed by Urs Eschle, the brand's head of operations, who consulted professional divers including none other than the father of SCUBA himself, Jacques-Yves Cousteau.

Since wearability was crucial, Eschle designed a large case with wide rounded lugs. For the dial, the team tested many colors (orange, yellow, turquoise, and red) in the waters of Neuchatel Lake. An unprecedented amount of tritium was also used on the hands and hour indices. 

The team implemented a unidirectional bezel with an innovative insert: the U.S. Navy No Decompression chart, with the outer depth scale in orange and the minute scale in black, to allow divers to gauge how much air was in left in their tanks. Rounding out the Sub 300's innovative design was a beads-of-rice bracelet that was the first to implement an ratcheting expandable clasp capable of fitting over a diver's wetsuit without having to remove links.


SKU: AS02952

Stainless steel case is approximately 42.5mm (excluding crown). ETA 2824-2 Self-Winding Movement. Circa 2017.

Overall Condition: Watch is in excellent condition overall, lightly worn with minor signs of wear from use. Dial is in excellent, as-new condition. Signed crown and case back.

Includes DOXA-signed 20mm "beads of rice" style bracelet with expandable clasp. Also includes DOXA tube-shaped box, warranty card, spare Isofrane style Borealis strap, strap changing tool, DVD, spare links, Aqualung patch, and COSC papers.

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Analog/Shift stands behind the authenticity of our products in perpetuity.


We back each Analog/Shift vintage timepiece with a one-year mechanical warranty from the date of purchase.


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