1975 DOXA Sub 300T Sharkhunter (Synchron Era) With Box and Papers

Doxa S.A. was founded in 1889 by Georges Ducommun as a maker of dress watches and other timepieces. In the late 1960s, Doxa decided to dedicate resources to produce a timepiece to be used exclusively for diving. Doxa consulted with various Navy dive teams and divers including Jacques Cousteau who was then chairman of "U.S. Divers." Doxa's innovative watches were quickly adopted by both commercial and military divers.

jacques cousteau doxaJacques Cousteau, who at the time was the head of U.S. Divers, was so impressed by the Doxa Sub300T that he became a distributor of the reference in the United States and co-branded the dial of the Sub300T with the U.S. Divers logo.

The Doxa company went through many acquisitions and changed ownership a few times over the years. Synchron bought Doxa in the late 1960s and added the brand to a group that also included Ernest Borel and Cyma, and was purchase again in 1978 by the Aubry Freres Company.  The second-generation or “Synchron Era" as many refer to it, was aimed to be the watch of choice for the emerging recreational diving community. With sturdy cases, high visibility dials and smart bezel design, the Synchron era Doxa Subs quickly became the watch of choice for recreational divers in both America and Europe.

1975 DOXA Sub 300T Sharkhunter (Synchron Era) With Box and Papers

This specific DOXA Sub 300T Sharkhunter is a true collector's item, with the watch itself in near NOS condition including all of its original provenance; box, booklets, and original hangtags. Doxa Subs are adored by the "Golden Era" dive watch enthusiasts and this Sharkhunter 300T represents the era perfectly.


Stock # DXSH300T
Brand DOXA
Style SUB
Model Sub 300T Sharkhunter
Serial N/A
Size Men's
Material SS
Dial Matte Black
Millimeters 42mm
Bracelet Synchron "Beads of Rice" Micro Adjust Stretch Bracelet


The unpolished Doxa Sub 300T case is in near unworn condition with only very light signs of being worn. The stainless steel bezel shows very light wear and retains all of its red enamel and tritium pearl which matches the dial nicely. The Synchron signed caseback remains unpolished showing little to no wear from use. The original Synchron signed "bead of rice" stretch bracelet features a unique ratcheting micro-adjust divers extension within the clasp, the bracelet shows very little wear and includes additional links.


The matte black Sharkhunter dial is in flawless condition. The tritium lume plots have aged to an excellent creamy patina and exhibit no degradation under U.V. light inspection. The original tritium hands match the dial perfectly and have no degradation when inspected under U.V. light. 


The watch comes complete with the original box, hang tags, warranty papers, booklets and additional bracelet links. The watch is running at spec and is in perfect working condition.