Back From the Deep: The Doxa SUB 300T Conquistador in Six Dial Options

Earlier this fall, iconic Swiss dive-watch brand Doxa released its newest collection of SUB 300T Conquistadors. This collection was first unveiled to the public in 1969 and was then known for its reliability and affordability during the initial rise of the hobby diving trend.

The original SUB 300T is now credited as the first dive watch to bring together a helium-release valve, a unidirectional rotating bezel, and the now-famous orange dial for enhanced underwater visibility all in a single package. For this reason, the watch was historically important in helping push the dive-watch category closer to how we understand it today, and has remained in the eyes of divers and watch enthusiasts alike as a classic in the category.

The newest iteration in the famous series is much like the original in its aesthetics, functionality, and affordability, though like all modern DOXA watches it has been updated with a modern movement, materials, and finishing. The piece uses a 42.5-mm, barrel-shaped steel case with its screw-down crown peeking out the side, and a traditional, unidirectional rotating bezel surrounding the dial, with a scale designed to assist in setting no-decompression dive times.

The dial is available in all six of Doxa’s popular color options, including the iconic orange (Professional), yellow (Divingstar), navy blue (Caribbean), turquoise (Aquamarine), silver (Searambler), and black (Sharkhunter). Like previous 300T watches, this one sports a dial configuration that maximizes legibility. This is evident in the enlarged quarter-hour markers with contrasting, smaller inter-hour markers; the variously sized hour, minute, and seconds hands; the minimized corporate logo with watch information; and the placement of a simple white date indicator at the 3 o’clock position. The entire dial is further accented with Super-LumiNova while the sapphire crystal uses a nonreflective coating to aid in visibility whether in darkness or bright sunshine.

Inside the model is the ETA 2824-2 automatic movement, capable of a 42-hour power reserve, and protected by a solid steel caseback giving the watch 1,200 meters (4,000 feet) of water resistance. The brand’s familiar “beads of rice” steel bracelet features a secure folding clasp and the classic Doxa fish emblem.

The watch is available for purchase now via Doxa’s website, priced at $1,890 for all color options. The watch will also be available on a rubber bracelet starting December 15, which will be available for $1,850.

No Responses to “Back From the Deep: The Doxa SUB 300T Conquistador in Six Dial Options”

Show all responses
  1. I had one of the original U.S. Diver’s SUB 300T watches. The bracelet was awful. Mine broke during a sailing trip on a Hobi-Cat and ended up somewhere in the San Francisco Bay.

    The latest version of this watch, which I own, is far superior in every way, especially the bracelet. While not shown in the pictures, there is a HRV at the 9 o’clock position of the case. This is an incredible watch and a great value.

  2. D Simpson

    The new 300t has a different method of fixing the bezel which results in some lateral movement and slight rocking of the bezels. Doxa say it’s due to the design.

  3. Johnny Tank

    But these new models don’t have the HRV, and are not called Conquistadors.
    On a side-note: the old original SUB Conquistadors were only produced in VERY limited quantities, not anywhere near a regular production run.

    • This latest release does have the HRV at the 9 o’clock position. I have one. The valve is there.

  4. $40 extra for a metal bracelet. I was quoted $970 to replace the bracelet on my Omega. It just shows the mark up the bigger brands inflict on us.

    • To get a bracelet, if you have the rubber strap variant, costs an additional $460 or so.

Leave a Reply