Two of the most trusted names in dive gear from have once again partnered for the modern reissue of the DOXA Poseidon SUB 300T Divingstar, recreating a rare 1970s-era DOXA for a new generation of divers and watch lovers.

Renowned dive watch manufacturer and exploration pioneers DOXA Watches has tapped another storied partnership with another very special edition SUB in classic DOXA hues – this time, a recreation of a rare 1970s-era dive watch, which was also created in partnership with dive gear manufacturer Poseidon.

Regularly seen are DOXA’s best known trio: the SUB 300T dive watches with iconic orange (“Professional”), black (“Sharkhunter”) and silver (“Searambler”) dials. But there was also a short-lived version with a bright yellow dial, known as the “Divingstar” and its rarity has made it a coveted find for vintage watch collectors. An even rarer version was the SUB 300T Divingstar created in partnership with the Swedish dive equipment company, Poseidon. The watch had all the standard features of other DOXA diving watches, but added the black and yellow Poseidon logo to the lower left quadrant of the yellow dial. It was a fitting collaboration, as both brands were on the cutting edge of dive gear development.

The 1970s were the golden age of scuba diving. Jacques Cousteau was bringing subaquatic wonders into living rooms on TV, the sport’s popularity was booming, and countless people were inspired to try diving. Better equipment was making it safer and more accessible, and commercial jet travel allowed divers to explore the far corners of the world’s oceans. Scuba diving was the ‘extreme sport’ of the decade, long before that term was invented. Divers strapped life support to their backs and descended, weightless, into an alien world.

It was also a time when a wristwatch wasn’t simply an accessory—it was a vital piece of gear, as critical to safe diving as a depth gauge or breathing regulator. And the dive watch to have was a DOXA — purpose-built, rugged, and trusted to keep track of time underwater. Cousteau wore DOXA. So did SEALAB divers and the French Navy. While dive watches had already become fashionable by the 1970s for desk-diving, DOXA stayed close to its diving brief, with its signature oversized minute hand, bright legible dials and patented bezel, printed with the US Navy’s no-decompression limits scale.

Poseidon’s Nordic roots and enterprising spirit ensured the brand maintained a reputation for developing gear designed for the unique rigors of cold-water diving. This included the brand’s innovative Cyklon regulator and signature neoprene Unisuit, along with watches manufactured in collaboration with DOXA – like the Sub 300.

With the DOXA Poseidon SUB 300T Divingstar, these two great diving names are once again joined on the dial of a watch that symbolizes rugged innovation and underwater adventure. The watch resembles its 1970s forebear but is updated for a new era with some modern features. The crystal is now highly scratch-resistant sapphire. The self-winding movement inside is the well-proven Swiss ETA 2824-2. And the watch is now water resistant to 1,200 meters, four times the depth rating of the original SUB 300T. Dial markings and hands are coated with layers of SuperLumiNova for optimum long-lasting legibility in dark and murky conditions. The steel bracelet fitted to this special watch is DOXA’s iconic “beads of rice” style, with solid end links and a fold-over clasp with an extension for use over a thick diving suit.

The Doxa Poseidon SUB 300T Divingstar features a helium escape valve on the left case flank, which allows trapped helium inside the watch to evacuate during decompression in a diving bell. DOXA pioneered the helium escape valve in the late 1960s, when it was used extensively by commercial and military divers living for extended periods in underwater habitats, and was the first brand to offer it publicly on a watch.

Only 300 of the DOXA Poseidon SUB 300T Divingstar will be made, and sure to be as sought after as the 1970s original. This iconic diving watch is a reminder of the golden age of scuba diving and a worthy companion for adventures in years to come.

The watch will be available for sale from www.doxawatches.com at USD2,490.