Rolex COMEX

Submariner -> COMEX

The COMEX-issued Rolex is the institutional dive-watch branch that sits adjacent to the retail Submariner and Sea-Dweller, supplied by Rolex to Compagnie Maritime d'Expertises in Marseille between roughly 1971 and 1997 for working saturation divers. It is an issue program rather than a single reference, touching seven Rolex references over a quarter-century, with caseback engravings, dial logos, and serialised diver numbers separating each watch from its retail counterpart. The 5514 was built as a dedicated COMEX product. The 5513, 1665, 16660, 16800, 16600, and 16610 were retail references modified or marked at supply for COMEX issue.

COMEX itself was a French commercial saturation-diving outfit founded by Henri Delauze in 1962, headquartered in Marseille, supplying divers to the offshore oil and gas industry through the boom years of North Sea, West African, and Persian Gulf field development. COMEX divers worked at depths and durations beyond the reach of conventional military or sport divers, living for days or weeks in hyperbaric chambers pressurised with helium-bearing breathing gases. The watches Rolex supplied to COMEX were tools for that work; their helium escape valves, caseback engravings, and dial logos all trace back to the practical demands of saturation diving rather than to retail product strategy.

Core facts

detail	value
program client	Compagnie Maritime d'Expertises (COMEX), Marseille
founder	Henri Germain Delauze (1962)
Rolex supply window	circa 1971 to 1997
total references issued	seven (5513, 5514, 1665, 16660, 16800, 16600, 16610)
dedicated COMEX reference	5514 only
signature features	COMEX-printed dial logo (red or white), caseback engraving with COMEX issue number, helium escape valve on Sea-Dwellers and 5514
issue numbering	sequential COMEX-issued diver number, engraved on caseback ("Rolex COMEX [number]")
supply tail	Rolex wound down direct supply in the mid-1990s; a final batch of 16610 examples surfaced from a later cache

Where COMEX sits in the line

The Submariner and Sea-Dweller went to retail through Rolex's standard distribution; the COMEX branch went to a single institutional client through a parallel supply channel for working professional use. Casebacks were Rolex-engraved at the factory before delivery to COMEX in Marseille, where the watches were issued to individual divers and recorded in COMEX's own service log. Periodic six-month service intervals brought the watches back to Rolex through the program's lifespan, which is why so many surviving COMEX examples carry service-replacement dials, hands, or movement parts that diverge from original-delivery configuration.

The COMEX branch is closer in spirit to the British Royal Navy 5517 MilSub branch than to the retail Submariner: a small, traceable issue run with a defined client, period documentation, and an authentication framework anchored on caseback engravings and program records. The two branches served different work. MilSub examples went to combat divers in the SBS and SAS at relatively shallow operational depths; COMEX examples went to commercial saturation divers working oilfield infrastructure at depths where helium permeation and decompression physics drive the design.

Issue timeline

Rolex's COMEX supply spans four broadly distinguishable eras across roughly 25 years.

Era	Span	References issued	Signature configuration
Prototype and early issue	1970–1972	5513 (modified, helium escape valve)	Modified 5513 cases with experimental helium escape valves; small unnumbered or low-double-digit issue numbers; non-logo or early COMEX-stamped dials
First production wave	1972–1978	5514, 1665	Dedicated 5514 reference codifies the Submariner-with-HEV product; 1665 Sea-Dweller carries its own COMEX dial-print and caseback variant in parallel; issue numbers run into the high-three-digit range
Five-digit transition	1978–1989	16660, 16800	Sapphire crystal, 1220m / 4000ft Sea-Dweller depth rating on the 16660; matte-to-gloss dial transition; later batches carry the white-text COMEX logo
Final issue and tail	1989–1997	16610, 16600	Submariner Date 16610 enters COMEX issue at the end of the supply relationship; small known cohort; issue tapered as Rolex wound down the supply program in the mid-1990s

The 5513 COMEX is itself two distinct populations: the 1970–1971 prototype watches that pre-date the dedicated 5514 and carry experimental HEV cases, and the standard 5513 (no HEV) examples issued to COMEX divers for shallower work where saturation gas mixes were not in play.

The references in the program

5513 COMEX

The 5513 COMEX is the earliest COMEX-issued Submariner. The Antiquorum Geneva 144-323 lot (2006) documents the prototype configuration on case 2,833,552, COMEX No. 24, autumn 1970: a 5513 case with experimental helium escape valve, COMEX-logo matte dial, and 9315 folded-link Oyster bracelet. Beyond the prototype run, standard 5513 COMEX examples without HEV were issued to COMEX divers through the early-to-mid 1970s for shallower duties where gas-mix saturation was not a factor. The COMEX dial logo appears in both red and white printing across the 5513 run, with the red logo reading as the earlier configuration. The COMEX branch is one of several issue-specific 5513 sub-populations; the 5513 article carries the full dial map and production outline.

5514

The 5514 is the only Rolex reference number assigned specifically for COMEX. Production ran from circa 1972 to 1978 across documented major-house lots and specialist research; total program output is contested between the often-repeated "about 154" figure and the reading Corrado Mattarelli published in Revolution in 2018, which documents at least three production batches with distinct caseback engraving sizes. The 5514 carries a 5513-derived case modified with a Rolex-designed helium escape valve at 9 o'clock, caliber 1520 movement, and "COMEX" caseback engraving with a sequential issue number running into the high-800s by 1977. Inner casebacks are stamped 5513 — the 5514 designation appears between the lugs and on the outer caseback only. The dedicated 5514 article carries the full dial map, caseback evolution, ARA Argentine Navy variant, and lot-by-lot auction record.

1665 COMEX

The 1665 Sea-Dweller went to COMEX with its own dial logo and caseback engraving from the early 1970s. The COMEX 1665 carries the standard 1665 Sea-Dweller architecture — gas-tight 200m / 1220m construction, helium escape valve at 9 o'clock from the production debut, "Submariner 2000" or "Sea-Dweller Submariner 2000" dial text — supplemented by COMEX dial print and caseback issue number. Two distinct COMEX-1665 dial configurations are documented across the run: an early "Double Red" Sea-Dweller layout with red "Sea-Dweller Submariner 2000" text and the COMEX block above 6 o'clock, and a later white-text-only configuration. Alongside the standard retail Sea-Dweller, the COMEX 1665 is one of two main institutional branches of the reference; the wider production outline sits on the 1665 page.

16660 COMEX

The 16660, the Sea-Dweller "Triple Six", entered COMEX issue around 1979 as the sapphire-crystal successor to the 1665. The 16660 introduced the 1220m / 4000ft depth rating, the larger 25-jewel caliber 3035, and the matte-to-gloss dial transition that runs through the early 1980s. COMEX 16660 examples carry a white-text COMEX logo above 6 o'clock on a glossy black dial with white-gold surrounds. Caseback engraving follows the 1665 COMEX format, with a sequential issue number that picks up from the 1665 run rather than restarting.

16800 COMEX

The 16800 Submariner Date is the rarest COMEX configuration on a Submariner-Date case. Documentation of 16800 COMEX examples is thin in published auction-house literature; the configuration surfaces occasionally with COMEX dial print and caseback engraving but exact issue counts have not been consolidated in primary sources. Bonhams and Antiquorum lot text from the late 2000s and 2010s document a small number of confirmed examples. Treat 16800 COMEX provenance with high authentication scrutiny given the scarcity of published references against which to cross-check issue numbers and caseback formatting.

16600 COMEX

The 16600 Sea-Dweller succeeded the 16660 in 1989 with the upgraded caliber 3135. COMEX 16600 examples are relatively well-documented compared to the 16800; Phillips and Sotheby's lots from the 2010s establish issue numbers running into the low-to-mid three-digit range during the early 1990s phase of the supply relationship.

16610 COMEX

The 16610 Submariner Date is the final COMEX-issued reference, with a small cohort issued in the mid-1990s before Rolex wound down the supply program. Surviving 16610 COMEX examples carry the white-text COMEX logo at 6 o'clock and caseback engraving in the late-format "wrap-around" style established on the 5514 from 1975 onward. A late batch surfaced after Rolex had ended direct supply, prompting authentication scrutiny among specialists; the consensus reading is that the late-batch caseback engravings were executed by Rolex during a final program-windup pass rather than aftermarket.

Caseback engraving and dial logo

The 5514 carries a one-way helium escape valve at 9 o'clock — the feature that defines the COMEX-specific reference. Sotheby's Hong Kong, April 2021, lot 2140.

The COMEX caseback evolves through three documented engraving styles across the program lifespan, all factory-engraved by Rolex rather than by COMEX in the field.

The early straight-line format runs from the prototype era through about 1975: "Rolex COMEX" written in straight lines across the caseback with a small or medium issue number stacked beneath. The watch identifier ("Submariner 2000" on the 1665, the reference number between the lugs on the 5514) is engraved in the standard position; the COMEX block sits below.

The mid-1970s wrap-around format introduces "Rolex Comex" curved around the caseback edge with a deeply engraved issue number — the so-called "Big Numbers" caseback, canonical on Antiquorum 2025 lot 383-172 (COMEX 878, 1977). The shift from straight-line to wrap-around runs roughly 1975 onward across both Submariner and Sea-Dweller cases.

The five-digit-era format on the 16660, 16800, 16600, and 16610 retains the wrap-around layout but tightens the engraving depth and font. Late-program 16610 examples carry the cleanest wrap-around format, with issue numbers in the three-digit range despite the program's quarter-century span — an indication that issuance was per-watch and per-diver rather than per-batch, with reissues and reassignments documented in COMEX's own service log.

The dial logo runs in two main configurations: red printing on early matte dials (1972 through about 1977) and white printing on later glossy dials (mid-1970s onward through the program's end). The transition is not clean: red and white logos coexist across the late 1970s and into the early 1980s on the 1665 and 5514. Service-replacement dials issued by Rolex during the program's lifespan are common on surviving examples; a service-replaced non-logo dial on a watch with documented COMEX issue number is plausible service work rather than a fake, though it is not the original-delivery configuration.

Movements

The COMEX program spans every major Submariner and Sea-Dweller movement of the era. The 5513 prototypes and the 5514 carry caliber 1520, the long-run non-chronometer caliber that powers the standard 5513. The 1665 carries the 1575 (Sea-Dweller chronometer-track) through its production span. The 16660 introduces the 25-jewel 3035 with the 1979 reference debut; the 16600, 16800, and 16610 carry the 3135 from 1988 onward. Service-replacement movements are documented across all references; a 5514 with a caliber 1570 movement is typically a service swap rather than original-delivery configuration, and the same logic applies to 3035-to-3135 swaps on five-digit references.

Authenticating a COMEX

COMEX is among the most-faked Rolex variants. Populations are small, the casebacks were engraved at Rolex rather than in the field, and unmodified retail-spec donors sit in the same case shapes. A standard 5513, 1665, or 16610 case fitted with a forged COMEX caseback is the canonical fake. The authentication framework rests on five anchors.

Caseback engraving font, depth, and layout must track the period: early straight-line versus mid-period wrap-around versus late-program tight-engraved. A 1975-or-later case fitted with an early straight-line caseback (or vice versa) is a swapped or refurbished part. Mattarelli's specialist research documents three engraving sizes overall (small / medium / large), with the size correlating to production batch.

Mid-case serial must match the serial engraved inside the caseback lid on documented examples. Rolex marked many program watches with the matching mid-case serial inside the lid for special-order traceability; mismatch on a watch claiming COMEX provenance is fatal.

Inner caseback markings differ from the outer engraving. On the 5514, the inner caseback stamps 5513, not 5514, because the 5514 designation appears between the lugs and on the outer engraving only. Any inner-caseback 5514 stamp is a forgery flag. On the 1665 and later Sea-Dwellers, the inner caseback follows the standard reference-specific stamping.

The issue number has to sit plausibly inside the bands documented in major-house lot text. COMEX 24 carries an autumn 1970 prototype configuration; COMEX 233 carries an early-1970s caseback; COMEX 377 sits in the mid-1970s; COMEX 850 and 878 carry the 1977 "Big Numbers" wrap-around. A claimed COMEX 200 with late-program wrap-around engraving is incoherent.

External validators include Henry Hudson letters from Rolex Bexley UK, which confirm the caseback engraving and the COMEX issue number. Bexley no longer issues them. Forgeries of the letters themselves are a separate concern and have surfaced in the market.

Forensic researcher Jose Pereztroika (Perezcope) has published several deep dives on COMEX caseback execution; the published forensic literature on COMEX rests primarily on Mattarelli, Perezcope, and the catalog essays from Phillips and Antiquorum specialists rather than on Rolex factory documentation, which is not publicly available for the program.

Auction record

Major-house lots establish the COMEX market spine.

Sale	Lot	Year	Reference / COMEX no.	Configuration	Hammer
Phillips New York Watch Auction SIX	NY080222/153	2022	5514 / 377	1975 case 4,089,919, matte black COMEX-logo, 9315 bracelet, Henry Hudson letter	USD 252,000
Phillips Geneva	CH080215/145	2015	5514 / 446	1974 non-logo, "Cuerpo Infanteria" Argentine Navy joint	CHF 52,500
Phillips Geneva, "Daytona Ultimatum"	various COMEX lots	2018	5514 and 1665 examples	mixed-period cases including ARA-engraved 5514	multiple six-figure CHF results
Sotheby's Hong Kong	HK Important Watches 2021	2021	5514 / 850	1977 matte COMEX-logo, Maurice Bessard provenance	HKD high-six-figure
Sotheby's Important Watches	London 2018	2018	1665 "Great White" / COMEX-issued	1977 white-text COMEX dial, Sea-Dweller caseback engraving	GBP 220,000+
Sotheby's Important Watches	New York 2023	2023	5514 / case 4,089,906	service-replaced non-logo dial on documented COMEX issue	USD high-five-figure
Antiquorum Geneva	144-323	2006	5513 / COMEX 24 (prototype)	1970 case 2,833,552, COMEX-logo matte, Fliplock 9315, earliest documented COMEX	CHF 76,700
Antiquorum New York	223-373	2009	5514 / no logo (prototype batch ~20)	1972 case 3,804,841, non-logo painted indexes	USD 72,000
Antiquorum Monaco	383-172	2025	5514 / 878	1977 case 5,230,258, "Big Numbers" wrap-around caseback	EUR 91,840
Bonhams London	16228/302	2008	5514 / 763	1976 case 5,230,248, COMEX 660ft=200m, Middle East Safety Department log books	est. GBP 50,000–70,000
Bonhams London	23511/43	2016	5514 / 723	c.1975 case / 1977-78 issue, COMEX matte, 93150 K3 clasp	GBP 72,100
Bonhams London	30667/69	2018	5514 / 233	Colin Beard provenance, c.1971 case + later service	GBP 25,600
Christie's Geneva, Important Watches	2014	2014	1665 COMEX double-red	Sea-Dweller Submariner 2000 layout, COMEX dial print	CHF 200,000+

The USD 252,000 Phillips New York result on COMEX 377 in 2022, against a USD 60,000-120,000 estimate, is the strongest documented public-auction result in the program. The 1665 COMEX with double-red dial and matched papers has hammered consistently in the GBP 200,000-plus range across the 2014–2024 period, while the 5514 spread runs from roughly USD 50,000 for service-heavy late-program examples up to the USD 252,000 paid for the best-documented one. ARA-engraved 5514 examples, of which 16 were issued to Argentine Navy divers training at the COMEX Marseille facility in 1977, command a separate premium and surface less frequently than standard COMEX 5514 examples.

Henri Delauze and the program tail

Henri Germain Delauze founded Compagnie Maritime d'Expertises in Marseille in 1962, building it into the dominant European commercial saturation-diving operator of the offshore-oil boom. COMEX's diving research arm conducted the deep-saturation experiments — Janus, Hydra, Physalie — that pushed working diving depths toward and beyond 500 metres in the 1970s and 1980s. The Rolex supply relationship spanned most of that arc.

Delauze died in February 2012. COMEX wound down its commercial diving operations through the 2010s and exited oilfield work; the corporate entity continues today in offshore marine engineering rather than human saturation diving. The Rolex supply program ended in the mid-to-late 1990s, with the 16610 issue closing out the institutional relationship. Surviving program documents — the COMEX service logs and diver assignment records — sit primarily in private specialist archives rather than in public corporate hands.

Related references

Submariner family index
Sea-Dweller family index
Submariner 5514 — the COMEX-only Submariner reference
Sea-Dweller 1665 — COMEX-issued Double Red and Great White
Sea-Dweller 16660 — COMEX-issued Triple Six
Sea-Dweller 16600 — later COMEX Sea-Dwellers

Sources