What is the Doxa SUB?
The Doxa SUB is a dive watch released 1967 by Doxa, a Swiss watchmaker founded 1889 in Le Locle. Best known for the orange "Professional" dial (specified for high underwater visibility in murky water) and the bezel with US Navy no-decompression-stop timing scale. Jacques Cousteau wore the Doxa SUB 300 throughout his ocean exploration career; his expedition company US Divers (Aqua-Lung) distributed the Doxa SUB in the United States starting 1968. Modern production: SUB 300T Professional ($1,990), SUB 600T Pacific ($2,290), SUB 1500T Conquistador ($2,890), SUB 200 ($990 quartz).
The Cousteau provenance
Jacques Cousteau wore the Doxa SUB 300 throughout his expedition years (late 1960s through the 1990s). Cousteau was personally involved in early discussions about the watch's specifications during 1966–1967 development, alongside Doxa engineer Urs Eschle and watchmaker Urs Otto Schild. The collaboration with Cousteau came through US Divers (Aqua-Lung) — the dive-equipment manufacturer Cousteau co-founded in the early 1950s and that he ran as CEO through the 1960s. US Divers needed a watch to bundle with their regulators and dive equipment; Doxa needed access to the American dive market. The partnership ran from 1968 through approximately 1980.
The Cousteau-era Doxa packaging included "Aqua-Lung Sharkhunter" co-branding on the dial (specifically on the Sharkhunter black-dial variant distributed through US Divers retail channels), with cosignatures of both brands. Vintage Aqua-Lung Sharkhunter examples are particularly collectable today — more so than the standard Doxa-only Sharkhunters of the same era. Cousteau's personal Doxa SUB 300, plus the prototype models from the development period, are held at the Doxa museum in Le Locle and at the Cousteau Society archives.
Cousteau's endorsement, plus the US Divers distribution, made Doxa the unofficial watch of professional saturation diving in the late 1960s and 1970s. When the saturation-diving boom drove watch demand among commercial divers (US Navy, oil-rig contractors, North Sea offshore work), Doxa SUB 600T and SUB 1500T references with helium escape valves were the watches divers actually wore on the job, alongside the Rolex Sea-Dweller. The cult-favorite status Doxa enjoys today among dive-watch enthusiasts traces directly to that era.
The orange dial — you can see it from the bottom of the lagoon. That's the only color a watch should be.
Jacques Cousteau on the Doxa SUB, undated archive interview
The 1967 SUB 300
The Doxa SUB 300 launched in 1967 as a 42mm cushion-case dive watch with three dial-color variants: Professional (orange), Searambler (silver), and Sharkhunter (black). Reference numbers 11899-1, 11899-2, 11899-3 across the three colors. Specifications: 300m water resistance, AS 1701 movement (Adolph Schild Caliber 1701, a Swiss workhorse used across multiple low-volume Swiss makers in the 1960s), screw-down crown at 4 o'clock (an unusual position chosen to avoid wrist-bone impingement during diving), and the no-decompression dive bezel.
The watch's development was driven by three priorities: high underwater visibility (the orange dial), functional dive-time and depth-time calculation (the no-decompression bezel), and ergonomic comfort during extended diving (the cushion case and 4-o'clock crown). Each priority was tested with actual divers — US Navy combat divers, Cousteau's research crew, US Divers dive shop owners — during the 1966–1967 development period. The result was a watch that genuinely worked underwater and that established a design language Doxa has preserved across every subsequent SUB reference for 60 years.

The no-decompression bezel
The Doxa SUB bezel features a unique no-decompression-stop scale — overlaying the standard 60-minute timing scale with US Navy dive table depth indicators. Each colored band on the bezel corresponds to a maximum no-decompression bottom time at a given depth. The scale runs (approximately) 60 minutes at 30 feet, 50 minutes at 40 feet, 40 minutes at 50 feet, 25 minutes at 60 feet, 15 minutes at 70 feet, 10 minutes at 80 feet, 8 minutes at 90 feet, and 5 minutes at 100 feet — the depth-time limits beyond which a diver requires decompression stops on ascent.
In actual use: a diver descends, rotates the bezel to align the minute hand with the start of the dive, and then reads both elapsed dive time and remaining no-decompression time directly from the bezel without consulting a dive computer or dive tables. The scale is conservative — it follows the more conservative side of US Navy dive tables — and is intended as a safety check against modern dive computers rather than a primary timing reference. Modern recreational divers carry dive computers that perform the calculation more precisely, but the Doxa bezel remains the most-distinctive functional bezel in horology.
Reference history
- SUB 300 (1967–1969) — Original 42mm cushion-case Doxa. Three dial colors (Professional / Searambler / Sharkhunter). 300m water resistance. AS 1701 movement.
- SUB 300T (1969–1972)— Updated 42.5mm case with helium escape valve added at 9 o'clock for saturation-diving compatibility. 300m water resistance, Caliber AS 1701 / 2783.
- SUB 250T Sharkhunter Aqua-Lung (1968–early 1970s) — Co-branded edition for US Divers / Aqua-Lung. The most-collectable vintage Doxa reference today.
- SUB 600T Conquistador (1970s) — 600m water resistance variant for commercial saturation diving. Larger case dimensions.
- SUB 1000T (1980s) — 1,000m water resistance. The Jenny-era Doxa.
- SUB 750T / 4000T (early 2000s) — Modern revival references. Reintroduced the original Doxa SUB design language after the dormant 1990s.
- SUB 300T Professional / SUB 1500T Conquistador (2010s–present) — Current production. Multiple case sizes (40mm, 42.5mm, 45mm) across the range, all preserving the original 1967 design language.
- SUB 300 Carbon (2020s) — Carbon-composite case. The experimental modern Doxa for buyers who want lighter wrist weight.
- SUB 200 (2018–present) — Quartz-movement entry-level Doxa. The most-accessible Doxa at $990.

Modern collection
- Doxa SUB 300T Professional ($1,990) — 42.5mm steel, orange dial, helium escape valve, 1,200m water resistance, ETA 2824-2 base. The reference Doxa and the most-recommended entry to the brand.
- Doxa SUB 300T Searambler ($1,990) — Silver-dial variant of the SUB 300T. Quieter aesthetic than the orange Professional.
- Doxa SUB 300T Sharkhunter ($1,990) — Black-dial variant. The most-traditional dive-watch aesthetic in the SUB 300T range.
- Doxa SUB 300 (no T, $2,290) — Smaller 42mm case (vs 42.5mm of SUB 300T). 300m water resistance without helium escape valve.
- Doxa SUB 600T Pacific ($2,290) — 600m water resistance, larger 45mm case, the modern saturation-diving variant.
- Doxa SUB 1500T Conquistador ($2,890) — 1,500m water resistance. The professional saturation-diving Doxa.
- Doxa SUB 200 ($990)— Quartz movement, full Doxa aesthetic at the lowest price point. The most-recommended "Doxa entry" for buyers who want the orange dial and no-decompression bezel without the mechanical-watch service interval.
- Doxa SUB 300 Carbon ($2,890) — Carbon-composite case, lighter modern variant. Carbon is significantly lighter than steel — useful for active recreational diving.
Why Doxa is collected
Doxa occupies a specific position in modern dive-watch culture: cult favorite of professional and saturation divers, distinct visual signature (the orange dial), historical provenance (Cousteau, US Divers, US Navy), and pricing meaningfully below Submariner / Seamaster equivalents. For buyers who want a dive watch with serious historical pedigree at $2,000–$3,000, Doxa is the most-defensible answer in the category.
The brand is smaller than the Swiss giants — Doxa produces a few thousand watches per year vs Rolex's 1,000,000+ and Omega's 600,000 — but has retained its dive-watch identity throughout its modern existence. Where Tag Heuer, IWC, and even Omega have diversified across categories (chronograph, dress, pilot), Doxa has remained primarily a dive-watch maker. The category-focus is part of the brand's appeal: a Doxa SUB is a dive watch made by a company that makes dive watches, not by a luxury house with a dive watch in its catalog.
Read next
For comparable dive references at adjacent price points:
- Seiko Prospex — The Japanese Tool Watch
- Tudor Black Bay — The Best Under $5,000
- Blancpain Fifty Fathoms — The First Modern Diver
For the dive-watch category context:
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