Reference:18038

Day-Date → 18038

The 18038 is the benchmark 5-digit Day-Date. Production runs eleven years, 1977 through 1988, on the cal 3055 — first Day-Date to wear sapphire crystal, first to carry quickset date, first to jump from the 1556's 19,800 vph to the modern 28,800 vph. Same 36mm President case the 1803 established. Same fluted bezel on yellow gold. The 18038 is where the Day-Date moves from vintage spec to modern spec without changing the case dimensions, and where the dial-variant experimentation of the 1803 era continues into the sapphire-crystal generation — Stella third-series in T SWISS MADE T marking, stone-dial 1980-1990 expansion, wood-burl revival, and the uncatalogued Pleiade diamond-pattern sub-variant that surfaces with a documented ~7,000 CHF factory surcharge.

Core facts

detail	value
reference	18038
family	Day-Date
production	1977 to 1988, eleven years
movement	caliber 3055, 27 jewels, 28,800 vph, ~48h power reserve, single quickset (date only — day still requires running hands)
case	36mm 18k yellow gold President
crystal	sapphire (first Day-Date with sapphire)
bezel	fluted (smooth on 18028, factory diamond on 18048, bark on 18078)
crown	Twinlock screw-down — 100m water resistance
bracelet	President 8385 with 55B end-links, hidden Crownclasp
lume	tritium ("T SWISS T" early sub-generation, "T SWISS MADE T" later)
siblings	18028 (smooth bezel), 18048 (diamond bezel, 44 brilliants), 18078 (bark finish), 18039 / 18049 / 18079 white gold, 18026 platinum
predecessor	1803
successor	18238

Where it sits in the line

The 18038 is the sapphire-crystal step in the Day-Date line. The 1803 ran the 4-digit Day-Date through 1977-78 on the acrylic crystal and the cal 1556. The 18038 takes the same 36mm Oyster case forward, drops in sapphire crystal, swaps the movement to the cal 3055, and adds quickset date — the operational change that pulls the Day-Date into the modern era. The 18238 takes it forward in 1988 with the cal 3155 and double quickset.

Caliber-wise the 18038 carries the cal 3055, the third-generation Day-Date movement after the 1055 (originals era, 1956-1959) and the 1555 / 1556 (1803 era, 1959-1978). The 3055 inherits the day-and-date complication and adds quickset DATE only — the day still requires running hands through midnight. The dual-quickset (date AND day both indexed from the crown) arrives in 1988 with the cal 3155 on the 18238. Sources occasionally describe the 18038 as having "double quickset" — that conflates the cal 3055 with the cal 3155 / 3156 on later 6-digit references. The 18038 has single quickset.

The catalogue siblings split the 5-digit Day-Date by bezel finish and case material:

18038 — 18k yellow gold, fluted bezel. The volume reference of the family.
18028 — 18k yellow gold, smooth bezel. Rare; smooth-bezel President is the dressy outlier.
18048 — 18k yellow gold, factory diamond bezel with 44 round brilliants.
18078 — 18k yellow gold, bark-finish bezel and bark center links. Limited production.
18039 — 18k white gold, fluted bezel. Subtle / under-the-radar.
18049 — 18k white gold, factory diamond bezel.
18079 — 18k white gold, bark-finish (yellow gold bark also documented under this number — market naming inconsistency).
18026 — platinum, smooth bezel. Extremely rare.

There is no pink-gold 5-digit single-quickset Day-Date. Pink gold pauses in the 1970s and returns in the 6-digit era with the 118135 and 118235 (Everose) references. Catalogue listings of "18058" or "18068" pink-gold 5-digit Day-Dates are confusion with the 1803 era pink gold or with the 6-digit successors — no factory production at the 18038 spec.

Production outline

1977 — sapphire-crystal introduction

The 18038 launches in 1977 alongside the broader Rolex 5-digit transition. Sapphire crystal replaces acrylic across the Day-Date for the first time. Cal 3055 replaces the cal 1556 — frequency jumps to 28,800 vph, quickset date enables single-crown date correction without running hands through 24-hour cycles, water resistance rises to 100 metres with the Twinlock screw-down crown.

Serial-year correlation across the run (per the WatchGuys / Belmont chart, applies to all Rolex of the period — Day-Date used the same number stream):

1977 ≈ 5,085,000
1979 ≈ 5,865,000
1980 ≈ 6,205,000
1981 ≈ 6,560,000
1982 ≈ 7,130,000
1983 ≈ 7,600,000
1984 ≈ 8,375,000
1985 ≈ 9,155,000
1987 ≈ R-prefix early (R'500,000s)
1988 ≈ R'999,999 end of run

1980s — dial-variant experimentation

Production-volume dials are the silver, champagne, white, and black stick (and Roman) configurations on 18k yellow gold. From approximately 1980 onward the dial experimentation that defined the 1803 era continues into the sapphire-crystal generation.

Stella third-series. The Stella lacquer dials continue under the T SWISS MADE T marking — distinguishing the 18038 generation from the 1803's earlier T SWISS T print. Documented colours include turquoise (asking USD 147,000 in current dealer corpus), oxblood (Chrono24 NOS example USD 125,179), coral / salmon (among rarest 18038 Stellas), green (USD 73,500 band), and the Middle Eastern market dials in yellow, pink, orange, and red.

Stone dials. Stern Frères continues to supply stone-cut dials. The 18038 roster includes onyx (most production-stable; specialist-dealer 1979 and 1986 documented), lapis lazuli (deep blue with golden pyrite shimmer; Craft & Tailored 1979), malachite (green wavy pattern — Day-Date and Datejust only per Fratello), and coral. Production peaks 1980-1990.

Wood / burl. Wood-marquetry dials surface in the 18038 era — sequoia, mahogany, birch, madrona, walnut. Strongly associated with 18078 bark-case examples but appearing on 18038 fluted cases (S.Song's Burl Wood, RVM 1981/1982 examples). Period claim: Rolex would mill ten wooden dials and select the best.

Pleiade diamond. Seven-star diamond pattern referencing the Pleiades myth. Introduced early 1980s as an uncatalogued option with a documented ~7,000 CHF factory surcharge. 1987 Pleiade 18038 asked USD 35,000.

Tritium-marking transition. Early 18038 production carries T SWISS T at the bottom of the dial; later production carries T SWISS MADE T. VRF thread t=561098 documents both marks across 18038 production — arguing two sub-generations within the 11-year window rather than a single mark.

1988 — end of production

Production ends with the 18238 introduction. Final retail USD 19,500 (1988). Earlier 1980s catalogue figures cluster the $7,000 to $10,000 band.

Movement notes

Caliber 3055 — the third-generation Day-Date movement.

Specifications:

28.5mm × 6.6mm
27 jewels (up from cal 1556's 26)
28,800 vph / 4 Hz (up from cal 1556's 19,800 vph)
Approximately 48-hour power reserve
Single quickset date — crown position 2 advances date only; day still requires running hands
Hacking seconds
Free-sprung Microstella balance
Glucydur balance with Microstella weights
Nivarox hairspring
COSC chronometer certified

The cal 3055 is the architectural ancestor of the cal 3155 / 3156 / 3255 that follow. Service intervals at Rolex Service Centre run 10 years officially, 5 to 7 years per independent watchmakers. Full service USD 1,000-1,500 at Rolex Service Centre, USD 500-800 independent.

The bracelet-and-clasp evolution from 1803 to 18038 is the cleaner visual divider than the cal 3055 spec itself. The 1803's earlier visible-clasp 7205 / 7836 bracelet had been replaced by the President 8385 with hidden Crownclasp from approximately 1969 — well within the 1803's run — so the 18038 ships on the same 8385 / 55B / Crownclasp combination, with subtle finish refinements over the decade-plus production span.

Dial map

Production-volume dials

Silver, champagne, white, and black stick indices on 18k yellow gold are the production-volume 18038 dials. Roman-numeral configurations are also catalogued. Diamond-hour-marker variants appear from the early 1980s — champagne with 8 round + 2 baguette diamond hour markers is one of the more-traded configurations. Sapphire accents at 6 and 9 appear on some champagne and black variants.

Stella third-series

The Stella supplier continues from the 1803 era into the sapphire-crystal generation, with the dial marking refined to T SWISS MADE T as the broader Rolex industry-wide marking convention shifts. Documented colours on the 18038:

Turquoise — among the rarest 18038 dials. Documented asking USD 147,000 in 2024 dealer-market listings. Rose from approximately USD 40,000 in 2015.
Oxblood — deep brick-red. Chrono24 NOS example documented at USD 125,179.
Coral / salmon — among the rarest. Top-tier collector configuration.
Green — documented in the USD 73,500 band, often paired with white gold (18039).
Yellow / pink / orange / red — primarily Middle East market distribution per Beckertime.

Stone dials

Stern Frères supplied stone-cut dials through 1980-1990 in increasing variety. The 18038 stone-dial roster:

Onyx — dyed agate, deep black glossy. Most production-stable variant.
Lapis lazuli — deep blue with golden pyrite shimmer. Documented Craft & Tailored 1979 example.
Malachite — green wavy pattern. Day-Date and Datejust only per Fratello research.
Coral — natural pink-orange. Often paired with white gold case.

Other materials documented on the broader Day-Date stone-dial line — tiger's eye, jasper, bloodstone, mother-of-pearl, jade, opal, sodalite, chrysoprase, rubellite, petrified wood, howlite, pyrite — surface more frequently on the 1803 era. The 18038 stone-dial concentration is the onyx / lapis / malachite / coral cluster.

Wood / burl

The wood-marquetry dial revival in the late 1970s and 1980s applies more often to 18078 bark cases than to 18038 fluted, but documented 18038 examples surface. Sequoia, mahogany, birch (the "Birch Burlwood" specialist-coined sub-variant), madrona, walnut. Documented surfaced 18038 wood-dial examples include the S.Song's Burl Wood listing and a pair of RVM 1981 / 1982 examples. The period claim that "Rolex would mill ten wooden dials and select the best" is repeated across the specialist literature; no surfaced production-document anchor confirms it.

Pleiade

Seven-star diamond pattern referencing the Pleiades myth. Introduced as an uncatalogued option in the early 1980s with a documented factory surcharge of approximately 7,000 CHF over the standard dial price. Catalogue entry sparse — "uncatalogued option" per the specialist literature, with collectors flagging the configuration as the tiniest fraction of production. 1987 Pleiade 18038 documented at USD 35,000 asking.

Mother-of-pearl

Mother-of-pearl dials appear from approximately 1980, often paired with diamond hour markers. White gold (18039) carries them more frequently than yellow gold (18038). Aftermarket MOP dials surface in the secondary market and require authentication against the factory-original MOP signature.

Vignette

Vignette dials — centre colour fading to dark border — appear on the 18038 as a factory variant. Distinct from sun-faded original dials that mimic the vignette pattern; same-batch documentation distinguishes.

Roman "Woman in Red"

Red-Roman-numeral 18038 documented in Pucci Papaleo's Day-Date — The Presidential Rolex monograph as "Woman in Red". Yellow gold case with red Roman numerals on a white-printed ground. Sub-five-known sub-variant of the standard Roman dial.

Tritium dial-mark transition

Early 18038 production carries T SWISS T at the bottom of the dial; later production carries T SWISS MADE T. The transition is the dial-mark indicator collectors use to separate first-half and second-half production examples; VRF thread t=561098 documents the boundary across surfaced examples.

Case, bezel, crystal, and crown notes

36mm three-piece Oyster construction. Case thickness approximately 12mm, lug-to-lug 44mm, lug width 20mm. Total bracelet weight approximately 130g. Water resistance 100 metres — first Day-Date to reach this rating, raised from the 1803's 50 metres with the Twinlock screw-down crown introduction.

Inner caseback stamped with the reference number plus quarter-year Roman-numeral lot codes ("18038 III.79" etc.) that date the caseback's manufacturing lot. Outer caseback is plain gold on civilian production.

The crystal is sapphire — first Day-Date with sapphire. The acrylic crystal of the 1803 era is gone. Sapphire enables both the thinner case profile and the higher water-resistance rating.

The crown is the Twinlock screw-down. The Triplock crown does not arrive on the Day-Date until later 6-digit production.

The fluted bezel on the 18038 is carved from solid 18k yellow gold. The 18028 carries a smooth bezel; the 18048 carries 44 round-brilliant diamonds in a factory diamond bezel; the 18078 carries a bark-finish bezel paired with bark center links on the bracelet. The bezel finish is the cleanest visual diagnostic between the four siblings of the 5-digit Day-Date cluster.

The coronet engraving on the case evolves subtly across the 11-year run. Early 18038 production carries an open-base coronet; later production carries a closed-base coronet. The transition year within the 18038 run is not pinned in the surfaced corpus — collectors use the coronet style as a secondary dating diagnostic alongside the dial-mark T SWISS T / T SWISS MADE T transition.

Bracelet, end-links, clasp

The 18038 wears the President bracelet 8385 with 55B end-links and the hidden Crownclasp. The bracelet construction is three-piece semicircular: a flat centre link flanked by two semicircular outer links per row. Solid 18k gold throughout. Polished centre link with brushed (later polished) outer links. The Crownclasp folds inward and locks beneath the centre link; no visible mechanism on the closed bracelet — the Rolex coronet appears on the clasp cover when the bracelet is closed.

Stretch is the first visual check on any 18038 bracelet — hold the watch face-down and look at the bracelet edge for sag at the link pivots. Stretched bracelets indicate heavy daily wear or extended service; the President bracelet doesn't take stretch well because the link weight runs heavier than the Oyster's.

Made by Gay Frères through 1998 when Rolex acquired the supplier. Clasp date codes inside the clasp leaf — should roughly match watch-head serial year. Service-replaced bracelets carry later clasp codes.

Special branches

Tiffany & Co. double-signed

Production continues into the 18038 era. Sotheby's Important Watches 2023 lot 89 documented an 18038 Tiffany double-signed example — case R'509'XXX, c. 1987, champagne dial, cal 3055. Tiffany 18038 examples trade at 2-3 times standard equivalents. Counterfeit risk on Tiffany dials is high; same-batch documentation and clasp-code chronology are the authentication tools.

UAE Armed Forces

Falcon emblem plus the UAE flag plus seven stars. Documented in champagne, silver, and brown dials, with very-rare white examples. Period diplomatic gifts post-1971 UAE independence. 1978 Rolex Passion Market documented example, 1983 brown Momentum Dubai documented example.

Omani Khanjar

Curved Omani dagger plus crossed swords plus belt. The royal crest of Oman introduced 1970 by Sultan Qaboos. Documented combinations include champagne dial and white-Stella-Khanjar configurations. Distribution through Asprey of London plus Khimji Ramdas in Muscat, distributed as gifts to British Armed Forces and SAS personnel.

Saudi Albilad

Arabic Albilad (country) day disk. Stocked as a specialist option through retailers serving the Saudi market.

Pucci Papaleo "Woman in Red"

Roman-numeral 18038 with red Roman numerals. Published in Day-Date — The Presidential Rolex (Spin Edizioni). Sub-five-known sub-variant.

Auction record

date	house	configuration	result
2023-06	Sotheby's Important Watches lot 89	18038 Tiffany & Co. double-signed c.1987, case R'509'XXX, champagne, cal 3055	estimate USD 30,000–50,000
various	Phillips Geneva	18038 yellow gold 1984 production-volume	just over USD 40,000
2020	Sotheby's Watches Online	18038/18000 c.1984 white dial, mvt 0793254, case 8457708	estimate USD 7,000–9,000 (catalogue typo — Sotheby's listed 35mm; every other source 36mm)

Market bands, 2024-2026:

Standard yellow gold 18038 champagne, box and papers — USD 15,000 to 22,000
Head only — USD 13,000
Full set premium — 5 to 15 percent over head-and-bracelet
Tiffany double-signed — USD 40,000 to 80,000
Omani Khanjar yellow gold — USD 40,000 to 50,000
Stella band — USD 73,000 to 147,000 depending on colour
Pleiade uncatalogued — approximately USD 35,000 documented

Sources

Primary and specialist

The Vintage Rolex Field Manual — Colin A. White, Morning Tundra
Rolex Day-Date Volume (Mondani Editore) — Mondani Family, Guido Mondani Editore
Day-Date — The Presidential Rolex — Pucci Papaleo Editore, Spin Edizioni, 2015-05
Sotheby's editorial, "The Rolex Day-Date: A Complete Collector's Guide", Sotheby's
Daniel Bourn, "Bourn in Oman: The Rolex Collection", Revolution Watches

Editorial and market