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The Encyclopedia of Horology

Wristwatch · Diving watch

DOXA Sub 300T Sharkhunter 'Aqua-Lung'

Partially verified

This Doxa Sub 300T Sharkhunter 'Aqua-Lung' is a vintage diving wristwatch featuring a 42mm cushion-shaped steel case. The watch is distinguished by its 'Aqua-Lung' logo on the matte-black dial, identifying it as a version retailed by the U.S. Divers company. The dial displays printed hour indices, a date window positioned at 3 o'clock, an oversized minute hand, and a 'dwarf' hour hand. The timekeeping mechanism is an automatic Swiss-made movement. Encircling the dial is a unidirectional 'No Deco' bezel, which features engraved timing marks for no-decompression diving. The case is fitted with a mineral crystal that meets the inner edge of the bezel and a signed locking crown. The watch is secured to the wrist with a stainless steel 'beads-of-rice' bracelet finished with a Doxa-signed clasp. The luminous material on the dial and hands shows signs of patina.

A front view of the Doxa Sub 300T Sharkhunter 'Aqua-Lung' showing the bezel, matte-black dial, and beads-of-rice bracelet.
A front view of the Doxa Sub 300T Sharkhunter 'Aqua-Lung' showing the bezel, matte-black dial, and beads-of-rice bracelet. — Analog:Shift. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
shop.analogshift.com
Category
Wristwatch · Diving watch
Maker / attribution
DOXA
Reference
Sub 300T
Catalogue / lot identifier
Source URL identifies the listing
Source-reported date
circa 1967
Source-reported place
Switzerland

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case and Dial

The timepiece is housed within a 42mm cushion-style stainless steel case. It features a unidirectional bezel equipped with the U.S. Navy's no-decompression dive timing marks. The crown is locking and bears the Doxa signature.

The matte-black dial includes printed hour markers, an oversized minute hand, and a smaller 'dwarf' hour hand. A date window is integrated at the 3 o'clock position. The lower left quadrant of the dial features the Aqua Lung logo, indicating the watch was retailed by the U.S. Divers company. The luminous material applied to the dial and hands exhibits patina.

Evidence for this section
  • “Housed in a 42mm cushion case with a unidirectional ‘No Deco’ bezel”
  • “a ‘DOXA’ signed locking crown, and a mineral crystal that sits flush against the inner bezel’s edge”
  • “features a matte-black dial with printed hour indices, an oversized minute hand, a 'dwarf' hour hand, a date window at 3 o’clock”
  • “the ‘Aqua Lung’ logo in the lower left quadrant”

Movement and Bracelet

The watch is powered by an automatic Swiss-made movement. No further technical specifications regarding the movement's caliber or complications beyond the date are provided by the source.

The watch is fitted with a stainless steel 'beads-of-rice' bracelet. This component is described as correct for the model and includes a clasp signed by Doxa.

Evidence for this section
  • “Powered by an automatic Swiss-made movement”
  • “paired to its correct stainless steel 'beads-of-rice' bracelet with a DOXA-signed clasp”

Historical Context

The Doxa Sub series was introduced in 1967. The model provided several features considered innovations for the period, such as the no-decompression dive timing marks on the bezel, an expanding bracelet, and high-visibility dials.

This specific variant is identified as an 'Aqua-Lung' edition, which denotes its retail distribution through U.S. Divers, a company owned by Jacques Cousteau.

Evidence for this section
  • “The first generation of the model, introduced in 1967”
  • “brought innovations we now take for granted — a unidirectional bezel with the US Navy's no-decompression dive timing marks engraved”
  • “a highly desirable 'Aqua-Lung' version, indicating that it was retailed by the Jacques Cousteau-owned U.S. Divers company”

Open research questions

  • What is the specific movement caliber used in this version of the Sub 300T?
  • Can the production date be further narrowed through specific case serial number ranges?

Source evidence

Recorded claims and source quotations for DOXA Sub 300T Sharkhunter 'Aqua-Lung'
FieldSource-reported valueSource quotation
ModelSub 300T Sharkhunter“DOXA Sub 300T Sharkhunter”
Case Size42mm“42mm cushion case”
MovementAutomatic Swiss-made“automatic Swiss-made movement”
CrystalMineral“a mineral crystal that sits flush against the inner bezel’s edge”
Retailer AssociationU.S. Divers“retailed by the Jacques Cousteau-owned U.S. Divers company”

Visible details

  • Unidirectional rotating bezel with red engraved decompression timing marks
  • Aqua-Lung logo printed on the lower left quadrant of the dial
  • Stainless steel beads-of-rice bracelet with Doxa branding on the clasp
  • Date aperture located at the 3 o'clock position

Research qualifications

  • The exact production year is not specified beyond its association with the 1967 model generation
  • Patination of the luminous material is subjective and described as being in an unspecified state of preservation

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی غواصی DOXA مدل Sub 300T Sharkhunter 'Aqua-Lung'

Reviewed 2026-11-02 · Record dce52d8633

Terms in this record

Glossary explanations for terms named in this object’s record.

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