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, 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 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 Doxa Subs quickly became the watch of choice for recreational divers in both America and Europe. Doxa S.A. 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.

This specific DOXA Sub 300T Professional cosigned "Aqua-Lung" was originally retailed by U.S. Divers Co. and is a true collector's item. Doxa Subs are adored by the "Golden Era" dive watch enthusiasts and this Professional 300T represents the era perfectly.

SPECS

CASE & BRACELET

The impressive case remains in unpolished condition retaining its factory brushing and dimensions with light signs of honest use. The uni-directional bezel is in beautiful condition and retains all of its enamel and its tritium pearl which matches the dial nicely. The case retains its original "DOXA" signed screw-down crown. The case back retains all of its original markings and its "Doxa sailboat" medallion. The watch will come supplied on a 2pc modern Doxa rubber tropic strap.

DIAL & HANDS

The original high visibility SUB300T Professional orange dial is in exceptional condition and is cosigned "Aqua-Lung" for U.S. Divers Co. The tritium lume plots have aged to a handsome yellow patina and display no degradation when inspected under U.V. light. The original tritium hands match the dial perfectly and show no degradation under U.V. light inspection.

ACCESSORIES 

None. The watch is keeping time and functioning perfectly, previous service history is unknown.