Doxa Sub 300T Professional
SOLD

Doxa Sub 300T Professional

With the advent of SCUBA (Self Contained Underwater Breathing Apparatus) in the late 1950s, skin-diving as a sport became much more accessible to amateurs. Before electronic diving computers, watches were a crucial tool for divers, who required them to calculate dive and decompression times, and they needed specialized, easy-to-read watches. Rolex and Blancpain's iconic dive watches were released during this decade, the Submariner and Fifty Fathoms, and both have become the stuff of legend.

By the 1960s, DOXA was already established as a major manufacturer of timepieces, with over 100 people employed in its shop. The success of the Submariner and Fifty Fathoms drove DOXA to develop a dive watch of its own. It had to be comfortable, rugged, and above all reliable, with a dial that could easily be read in the murky depths of the ocean.

Research and Development for the Sub 300 began 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 before hitting on what would be the distinctive orange dial most associated with this watch, and used an unprecedented amount of tritium 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.

With the introduction of the Sub 300T, DOXA initiated subtle changes in the watch's design, including different dial colors, a thicker case and a flatter crystal. DOXA further blazed trails in dive watch design by incorporating a Helium Release Valve or HRV in the DOXA Sub 300T Conquistador. DOXA worked in conjunction with Rolex to develop this technology. Rolex incorporated this feature into its Sea-Dweller. But since the Sea-Dweller didn't debut until 1971, the Sub 300T Conquistador was the first watch with a HRV available to recreational--rather than professional or military--divers.   

The Sub 300T with its bright orange dial is the most noticeable and desirable. This one comes with the US Diver's "Aqua-Lung" logo, stamp of approval from the Sea King himself, Jacques Cousteau. A personal fan of ours here at Analog/Shift, it's a must-have for the collector of vintage divers. 

Details

Stainless steel case is approximately 42mm (excluding crown). Doxa Sub 300T. Automatic Movement. Circa 1970s.

Overall Condition: Stainless steel case is in very good condition with minimal signs of use and wear in keeping with its age, including light nicks and scratches throughout. No Compression bezel is in good condition with some fading to the no compression chart. Dial is in good condition with a slight spidering effect. Luminescent elements of the hour markers and hands have gained a fine even patina over time. Unsigned crown. Doxa case back with sailing ship logo is in good condition with signs of light wear.

Includes two 20mm nylon straps from Crown & Buckle

SKU: AS01715

More pieces you may enjoy

Universal Genève Polerouter
Bumper Wind Automatic - Mid 1950s
$ 2,750.00
Rolex 'Kermit' Submariner
50th Anniversary Edition
Omega Seamaster 300 Royal Navy Issue
Ref. 165.024 - Issued to the Royal Navy
DOXA Sub 300T "Blacklung" Reissue
One of only 300 made!
$ 2,950.00
x

Inquire

Thank you for your interest in the Tudor Oysterdate Big Rose. Please fill out the form below and we will get back to you shortly.

Name*
Email*
Phone
Message
Submit
x

Our Pledge

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

Warranty

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

Shipping

All of our watches include complementary insured shipping within the 50 states. We are happy to hand deliver your purchase in Manhattan or you may pick it up at our showroom.

International Buyers

Please contact us prior to purchase for additional details on shipping and payment options