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Import reference 1803 article

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[[File:Ref 1803 hero.webp|thumb|right|360px|alt=Rolex Day-Date 1803 Lacquered Stella dial|Rolex Day-Date 1803 — Lacquered Stella dial example, the dial-variant family that drives the modern collector market for the reference.]]

The 1803 is the canonical 4-digit Day-Date. Physical production begins in 1959, catalogue presence runs from 1961 per Mondani's printed-archive research, and the line ends in 1977-78 when the 5-digit 18038 takes over. Eighteen years, the longest single-reference run in the 4-digit Day-Date era. The fluted bezel is the visual signature that separates the 1803 from its catalogue siblings — the 1804 with gem-set bezel, the 1807 with bark finish, the 1811 with smooth bezel. Inside that bezel sits the most dial-variant-dense Rolex reference in the modern catalogue: the production-volume silver and champagne stick, the Buckley Roman, the Wide-Boy, the Underline, the Red Quarters, the Sigma, the Stella lacquered colours from oxblood through Bart Simpson yellow, the Stern Frères stone dials from onyx to malachite to coral, the diamond-pavé, the mother-of-pearl, the Khanjar Oman, the Tiffany double-signed. The Marlon Brando "Apocalypse Now" Rolex that's casually attached to the 1803 in popular press is a GMT-Master 1675, not a Day-Date. The presidents who actually wore the watch — Lyndon B. Johnson on top — gave the line its "President" advertising nickname from 1966 onward.

==Core facts==

{| class="wikitable"
|-
! detail
! value
|-
| reference
| 1803
|-
| family
| Day-Date
|-
| production
| 1959 (physical) / 1961 (catalogue) through 1977-78
|-
| run length
| 18 years — longest 4-digit Day-Date
|-
| movement
| caliber 1555 (1959 to c. 1965) → caliber 1556 (c. 1965 to end) with hacking added 1972
|-
| case
| 36mm 18k gold (yellow / white / pink / rose) President
|-
| crystal
| acrylic
|-
| bezel
| fluted
|-
| bracelet
| President 8385 with 55B end-links, hidden Crownclasp from c. 1969 (earlier 7205 / 7836 visible-clasp)
|-
| dial families
| silver/champagne stick (volume) plus Buckley Roman, Wide-Boy, Underline, Red Quarters, Sigma, Stella lacquer, stone, mother-of-pearl, diamond/gem-set, Tiffany/Asprey/Khanjar special branches
|-
| production volume
| "tens of thousands across all metals" (Ottuhr); ~1,200 Stella-dialled examples per A Collected Man
|-
| predecessor
| originals era 6510 / 6511 / 6611 / 6612 / 6612B
|-
| successor
| 18038
|}

==Where it sits in the line==

The 1803 is the volume Day-Date of the vintage era. The originals-era cluster (6510, 6511, 6611, 6612, 6613, 6611B, 6612B) ran 1956-1959 in low numbers and on the Jubilee bracelet at first, with the President bracelet introduced with the 6611 in 1957. The 1803 inherits the cal 1055-derived movement architecture, transitions to the longer-run 1500-series calibers, and becomes the watch that turns the Day-Date into a category. Catalogue siblings 1804 (gem-set bezel, often platinum or pink-gold), 1806 (bark bezel), 1807 (bark center links, full bark coverage), 1811 (smooth bezel), 1830 / 1831 / 1832 (further bezel-and-material variation) all split off from the 1803's case architecture by bezel finish.

The 1803 is the reference where dial experimentation arrives. The originals-era cluster runs production stick-indices and the occasional Roman-numeral commission. The 1803 opens to Stella lacquered colour, Stern Frères stone dials, the Buckley Roman commercial run, the Red Quarters Arabic minute track, the Pucci Papaleo "Break Point" and "Purple Rose" specials. The collector market discovered the 1803's dial-variant depth in the 1990s and 2000s; the Stella catalogue revival in the dealer market dates from approximately 2015 onward, with A Collected Man's tally placing roughly 1,200 Stella 1803s across the entire production.

Caliber-wise the 1803 sits at the architectural pivot point. The cal 1555 (1959 to c. 1965) carries the 18,000 vph and 25-jewel spec of the cal 1055-derived early Day-Date family. The cal 1556 (c. 1965 to end of run) jumps to 19,800 vph and 26 jewels with the free-sprung Microstella balance the modern Rolex line takes forward. Hacking seconds arrive across the entire 1500 family in 1972 — a mid-1556 introduction, not at the caliber transition. Pre-1972 cal 1556 examples do not hack; post-1972 do. Older sources that say "1965 introduces hacking" conflate the caliber change with the hacking change. No quickset on any 1803, ever — date and day advance only by running hands through midnight.

==Production outline==

===Late 1959 production start, 1961 catalogue arrival===

Earliest documented 1803 case serials sit around 550,000 in the 1960 production-year range. Mondani's printed-Rolex-catalogue research puts the 1803's first catalogue appearance in 1961, alongside the 1804 and 1806. Vintage Watch Collective lists a 1959 1803 pie-pan example — physical production runs before catalogue presence. The pragmatic reading: late 1959 production start, 1961 retail-catalogue launch.

===1960s — Wide-Boy and Underline transitional===

Early 1960s production carries two short-run transitional dials. The '''Underline''' dial appears 1963 — a luminous-material marker stamped under the SCOC text at six o'clock, indicating a chemistry transition during the period when Rolex moved away from earlier lume compounds toward tritium. Craft & Tailored documents a 1963 underline 1803.

The '''Wide-Boy''' dial — oversized block indices paired with "cigarette" or "wide-boy" hands (sometimes called "cigarette-boat" hands when paired narrowly with 1963-64 production) — sits in the same short window. Craft & Tailored and Phillips both document examples; Phillips lot CH080515/215 sold a 1970 yellow-gold Wide-Boy 1803 in 2015. The non-luminous Wide-Boy is particularly desirable, especially Japanese-market specification.

===Mid-1960s — caliber transition + Buckley era arrival===

The cal 1555 transitions to cal 1556 around 1965. The change brings 19,800 vph and 26 jewels but no hacking — that arrives in 1972. The '''Buckley''' dial enters production in this window — printed Roman numerals on lacquered ground in champagne, silver, white, blue, grey, and "olive grey" variants. The name comes from New York vintage dealer John Buckley who collected them when the market did not. By the 2000s and 2010s the Buckley is top-tier collectable, with thin-Buckley examples (Oliver & Clarke documents a sub-variant) commanding additional premium.

===Late 1960s — Red Quarters + clasp evolution===

The '''Red Quarters''' dial — Arabic minute track with red 15/30/45/60 numerals — runs from the late 1960s through the early 1970s. Yellow gold dominant; pink-gold examples rarer; among the rarest "ordinary" 1803 dials in any year.

The bracelet evolves around 1969. Earlier 1803s shipped on visible-clasp 7205 or 7836 President bracelets. From approximately 1969 onward the '''President 8385''' with '''55B end-links''' and the hidden '''Crownclasp''' becomes the period-correct fitment — three-piece semi-circular link construction, hollow centre links typical of the era, made by Gay Frères through 1998 (Rolex acquired Gay Frères that year).

===1970s — Stella + Stern stone-dial era + hacking seconds===

The Stella period dominates 1970s collector interest. '''Stella S.A. of Châtelaine / Geneva''' supplied lacquered dials to Rolex from approximately 1970 into the late 1980s. The colour catalogue across the 1803 run runs deep — oxblood (the more common of the reds), coral and cherry (markedly rarer), burgundy, pink, mauve, lilac (the Pucci Papaleo "Purple Rose" 1803 is the lilac), Bart Simpson canary yellow, orange/pumpkin (uncommon), turquoise, seafoam and forest green, blue (the official "core" Stella colour), lemon, white, and black. The "Stella" name is the lacquer supplier's name; Rolex's own paperwork uses "Lacquered Stella" rather than treating it as a marketing nickname. A Collected Man's tally places approximately 1,200 Stella-dialled 1803s across the entire production — the canonical denominator for the variant market.

The '''Stern Frères / Stern Création''' stone-dial collaboration begins around 1970 and runs through approximately 1990. The 1803 dial roster spans onyx, lapis lazuli, malachite, tiger's eye, jasper, bloodstone, mother-of-pearl, coral, jade, and the rarer materials — opal, sodalite, chrysoprase, rubellite, petrified wood, howlite, and pyrite. Italian Watch Spotter notes only two Day-Dates with pyrite known across the full catalogue. The cutting waste rate is approximately 80 percent — the reason stone dials never reached high-volume production. Coral on pink gold and onyx on platinum are the two genre-defining pairings; the platinum case is normally a 1804 reference, so factory-platinum 1803 cases sit at edge-case territory.

Hacking seconds arrive across the 1500 family in 1972. Cal 1556 examples produced 1965-1971 do not hack; 1972-onward examples do.

===Mid-1970s — Sigma transitional===

The '''Sigma''' dial — small σ σ flanking T SWISS T at the bottom of the dial — appears c. 1973 as an industry-wide convention indicating solid-gold applied indices. The Sigma is a transitional 1970s feature found on later 1803 production. Specialist-dealer archive examples of the 1976 final-year '''café-au-lait with white pad-printing''' variant — white printing that fades at certain angles — close the run with another short-term dial idiom.

===1977-1978 — end of run===

Catalogue serials extend to approximately 5,865,000 by 1978. The 5-digit 18038 takes over with sapphire crystal, cal 3055, and single quickset date. Catalogue presence of the 1803 continues briefly into the early 1980s as remaining inventory cleared.

==Movement notes==

The caliber 1555 (1959 to c. 1965) carries the early Day-Date specification:

* 18,000 vph / 2.5 Hz
* 25 jewels
* 42-hour power reserve
* Free-sprung Microstella balance, Breguet overcoil
* No hacking, no quickset
* Day-and-date complications via the 1055-derived architecture

The caliber 1556 (c. 1965 to end) is the longer-run movement:

* 19,800 vph / 2.75 Hz (higher frequency than 1555)
* 26 jewels (one more than 1555)
* 42-hour power reserve
* 28.50mm diameter
* Free-sprung Microstella balance, Breguet overcoil
* '''Hacking seconds added 1972''' — Beckertime, Ottuhr, and the broader specialist literature converge on 1972 for the hacking-seconds introduction across the 1500 family. Older sources that say "1965 introduces hacking" conflate the caliber change with the hacking change. Pre-1972 cal 1556 examples do not hack.
* No quickset — date and day advance only by running hands through midnight.

Both calibers are COSC chronometer-certified. The cal 1556 is the fourth-generation Day-Date movement (after cal 1055 original and upgraded, cal 1555). Service intervals at Rolex Service Centre run 10 years officially, 5-7 years per independent watchmakers.

==Dial map==

The 1803 dial taxonomy is the deepest in vintage Rolex. The catalogue below documents what surfaces in the auction record, the print references, and the specialist forum work.

===Production-volume dials===

Silver and champagne stick indices on pie-pan profile. The 1803 is the last Day-Date to carry the pie-pan dial — the 18038 moves to flat. Sunburst, satin, and matte finishes appear within both colour families. Dauphine hands on the earliest production transition to alpha hands on later 1803s.

===Wide-Boy (1963-1964 short run)===

Oversized block indices paired with cigarette / wide-boy hands. The Wide-Boy dial sits in a narrow window of early-to-mid-1960s production. Phillips and Craft & Tailored have documented examples. Non-luminous Japanese-market Wide-Boys are the most-collected sub-variant.

===Underline (early 1960s, 1963 documented)===

Transitional luminous-material marker under the SCOC text — a chemistry-transition indicator. Genuine Underline 1803s carry the line printed during a specific lume-compound shift; aftermarket re-prints are common and need authentication against original-lume same-batch documentation.

===Buckley Roman (c. 1965 onward)===

Printed Roman numerals on lacquered ground. Champagne, silver, white, blue, grey, olive grey variants. Named for New York vintage dealer John Buckley. Thin-Buckley dials are a documented sub-variant per Oliver & Clarke. The Buckley is among the most-collected non-special 1803 dial families.

===Red Quarters (late 1960s through early 1970s)===

Arabic minute track with red 15/30/45/60 numerals. Yellow gold dominant; pink-gold rarer. Rolex Passion Market documents a Red Quarters 1803 in the named-collector archive.

===Sigma (c. 1973 transitional)===

Small σ σ flanking T SWISS T at six o'clock. Industry-wide convention from c. 1973 indicating solid-gold applied indices. WannaBuyAWatch lists 1972-onward examples; Sigma is a late-1803 transitional feature, not a stand-alone variant.

===Linen / textured===

Fabric-like surface pattern in silver or champagne. Scarce. Period-correct production but uncommon in surfaced examples.

===Stella lacquered (c. 1970 to late 1980s)===

The supplier Stella S.A. of Châtelaine / Geneva makes the lacquered dials Rolex applies across the line. Production runs approximately 1970 through the late 1980s; the 1803 carries Stella from approximately 1970 to 1977-78. A Collected Man's tally places approximately 1,200 Stella-dialled 1803s across the full production.

Documented colours on the 1803:

* '''Red family''' — oxblood (the more common of the reds), coral and cherry (markedly rarer), burgundy. Pricing band for honest Stellas USD 60,000 to 150,000+ depending on colour and metal pairing.
* '''Pink / mauve / lilac / purple-rose''' — the Pucci Papaleo "Purple Rose" 1803 is a yellow-gold case with lilac Stella, documented in the ''Day-Date — the Presidential Rolex'' monograph.
* '''Yellow / canary''' — the "Bart Simpson" colourway. Phillips Glamorous Day-Date Geneva May 2015 lot 6 sold a Bart Simpson 1803 against an estimate of CHF 50,000-100,000.
* '''Orange / pumpkin''' — uncommon.
* '''Turquoise''' — coral-with-pink-gold and onyx-with-platinum collector ratios put turquoise in the top tier of desirability. Documented turquoise 1803s sit in the USD 100,000+ band.
* '''Seafoam / forest green''' — green is in the official 1986 Rolex four-colour Stella list (blue / green / red / yellow), but production extends well beyond.
* '''Blue''' — the official core Stella colour. Lacquered blue ground regularly carries Khanjar overlay on Omani Asprey examples.
* '''Lemon / white / black''' — peripheral colourways in the broader Stella catalogue, more 18038-era than 1803.

Oxblood examples trade closer to USD 75,000. Coral and turquoise on white-metal cases reach USD 100,000+ at the higher end of the band.

===Stone dials (c. 1970 onward, Stern Frères supplied)===

Stern Frères / Stern Création supplied stone-cut dials to Rolex. The 1803 dial roster surfaces in onyx, lapis lazuli, malachite, tiger's eye, jasper, bloodstone, mother-of-pearl, coral, and jade across the production. Rarer materials documented in the catalogue include opal, sodalite, chrysoprase, rubellite, petrified wood, howlite, and pyrite — Italian Watch Spotter notes only two Day-Dates with pyrite known across the full catalogue. The cutting waste rate during stone-dial production was approximately 80 percent, the reason stone dials never reached high volume.

Coral on pink gold and onyx on platinum are the two genre-defining factory pairings; the platinum case is normally a 1804 territory reference, so onyx-on-platinum 1803s are edge cases.

===Diamond and gem-set===

Pavé, baguette-indices, and mixed-cut configurations. Factory examples often pair with the 1804 sub-reference's diamond bezel. Baton-and-diamond Buckley-adjacent 1803 dials exist — the '''"Break Point"''' 1803 (Pucci Papaleo) is a pink-gold 1962 example with baton pink-gold indexes alternating with round-cut diamonds at the 2, 4, 6, 8, 10 positions. Aftermarket gem-setting on 1803s is rampant; factory gem-set examples carry Rolex paperwork confirmation.

===Wood-marquetry, doorstop, grey ghost, café-au-lait===

Wood-marquetry dials appear in the late 1970s, more common on the 18038 than the 1803. The '''doorstop''' dial (collector-coined for thick sharp-edged baton indices on certain non-luminous 1803s, particularly Japanese-market) and the '''grey ghost''' (a specialist-coined term for a specific grey 1803 dial in pink gold) are micro-variants. The 1976 final-year café-au-lait with white pad-printing that fades at certain angles closes the run with another short-term idiom.

===Tropical===

Black or brown dials aging to chocolate or olive across the run. The dye chemistry of 1960s lacquers oxidises unevenly. Genuine factory-tropical examples (versus sun-faded original-black) require same-batch documentation.

===Day-disc language variants===

Day-disc available in approximately 26 languages across the production (Rolex rotated the catalogue), with roughly 11 simultaneously available to an order-form 1803 buyer — English, French, Italian, Spanish, German, Dutch, Swedish, Danish, Roman/Latin, Arabic, Japanese. Arabic is the rarest survivor on 1803 specifically; Japanese-market 1803s are over-represented in non-luminous configurations. Day-wheel swapping is endemic in the vintage market and Sotheby's collector guide flags this explicitly — authentication runs on cross-checking day-disk against case serial against caseback markings.

==Case, bezel, crystal, and crown notes==

The 1803 case is 36mm in diameter, approximately 12-13mm thick, 44mm lug-to-lug, with a 20mm lug width. Three-piece construction (case, screw-down crown, screw-down caseback) with a Twinlock screw-down crown carrying the two-dot crown marking on the gold variants.

The caseback is screw-down and stamped internally with "1803" plus quarter-year Roman-numeral lot codes that date the caseback's manufacturing run, not the watch's final assembly date. Coronet engraving on the caseback evolves subtly across the 18 years — sharper, more upright coronets on later production. Outer casebacks are plain gold on civilian examples.

Cases were manufactured in-house in Geneva. The 18k yellow gold case material dominates production by a wide margin. 18k white gold is uncommon. 18k pink and rose gold are scarce — Oliver & Clarke frames pink gold as "infinitely rarer than yellow gold versions from this era." Rolex paused rose-gold production in the 1970s and only revived it (with the rebranded Everose alloy) at the end of the 1990s, so genuine 1803 pink-and-rose-gold cases concentrate in the earlier years of the run.

The fluted bezel is the visual signature. Carved from solid gold on every metal variant. Catalogue siblings split by bezel finish — the 1804 carries a factory gem-set bezel, the 1807 the bark finish, the 1811 a smooth bezel.

==Bracelet, end-links, clasp==

The President bracelet 8385 with 55B end-links is the canonical 1803 fitment from approximately 1969 onward. Three-piece semi-circular link construction, hidden Crownclasp introduced approximately 1969. Earlier 1803 production through approximately 1968 shipped on the visible-clasp 7205 or 7836 President bracelets — period-correct but pre-Crownclasp.

Hollow centre links are typical for the era. The 18038 era moves to solid centre links. Made by Gay Frères through 1998 when Rolex acquired the supplier. Date codes inside the clasp leaf should roughly match the watch-head serial year — clasps far ahead or behind the case serial typically indicate later service-replacement.

Jubilee bracelet on a 1803 is period-correct but uncommon. The 1803-on-Jubilee combination shows up most frequently on Tiffany & Co. double-signed examples and Saudi-market commissioned configurations.

==Auction record==

The Nasser 1803 is the headline result and the single most important provenance 1803 in the public record.

{| class="wikitable"
|-
! date
! house
! configuration
! result
|-
| Dec 6 2024
| Sotheby's New York Important Watches
| Gamal Abdel Nasser 1803 yellow gold, champagne "claw" dial with Arabic day/date discs, caseback engraved "Mr Anwar El Sadat 26-9-1963" (gift from Sadat to Nasser)
| USD 840,000 (estimate USD 30,000–60,000)
|-
| Heritage Auctions lot 54041 (sale 5515)
| Heritage
| Lyndon B. Johnson 1803 yellow gold, gifted by LBJ family to Lawrence J. Klein (caretaker of LBJ Ranch / Western White House)
| result undisclosed
|-
| 2023
| Sotheby's collector guide reference
| Tom Landry 1803 yellow gold
| USD 88,900
|-
| May 8 2015
| Phillips Glamorous Day-Date Geneva lot 6
| "Bart Simpson" 1970s yellow gold with canary-yellow lacquered Stella dial
| estimate CHF 50,000–100,000
|-
| May 8 2015
| Phillips Glamorous Day-Date Geneva lot 49
| Left-Crown 1803 chocolate-brown lacquered dial 1969, "possibly unique" special-order left-hand crown configuration
| estimate CHF 50,000–100,000
|-
| Pucci Papaleo Day-Date — The Presidential Rolex
| Auction-documented
| 1974 pink-gold 1803 stone-dial
| CHF 167,000
|-
| —
| specialist-dealer documented
| Khanjar Oman 1803 white gold with blue Stella ground, Khimji Ramdas import marking with Asprey crossed-swords inside caseback
| asking USD 48,000
|-
| —
| Sotheby's Important Watches N09952
| Tiffany & Co.-signed 1803 yellow gold, 1973
| published lot reference
|-
| 2020
| Sotheby's Watches Weekly Geneva
| Yellow-gold diamond-set 1803 c. 1970, factory gem-set
| published lot reference
|}

Standard 1803 market bands, 2025-2026:

* '''Yellow gold honest examples''' — USD 10,000 to 15,000
* '''White gold''' — USD 12,000 to 18,000
* '''Pink / rose gold''' — USD 18,000 to 28,000+
* '''Stella''' — USD 60,000 to 150,000+
* '''Buckley''' — standard band + 30 to 50 percent premium
* '''Wide-Boy''' — standard band + 20 to 50 percent premium
* '''Tiffany double-signed''' — standard band × 2 to 3
* '''Khanjar''' — standard band × 3 to 5
* '''Nasser-tier provenance''' — one-off territory

Unpolished case premium runs 20 to 40 percent. Original lume-match premium 30 to 50 percent. Box, papers, matching-serials premium 15 to 30 percent.

==Notable owners and the "President" advertising nickname==

Lyndon B. Johnson wore an 1803 yellow gold across his presidency. Johnson is the president who gave the watch its "President" advertising nickname — Rolex began advertising the Johnson-Day-Date link by 1966 and the nickname stuck across the 1803's run and through the subsequent five- and six-digit Day-Date generations.

Sotheby's collector guide lists Gamal Abdel Nasser, Tom Landry, Jack Nicklaus, Chris Evert, and Andy Warhol among documented 1803 wearers. Nasser's example carries the Sadat-to-Nasser caseback engraving and is the single most important provenance lot in the 1803 auction record (Sotheby's Dec 2024, USD 840,000 hammer against USD 30,000-60,000 estimate).

The Marlon Brando "Apocalypse Now" Rolex is a '''GMT-Master 1675''', not a 1803. Phillips New York "Game Changers" December 10 2019 sold it for USD 1.95 million with the bezel removed by Brando on set and "M. Brando" hand-engraved on the caseback. Any source attributing Brando to the 1803 has the reference wrong.

The Eisenhower-and-Day-Date claim in casual press is similarly misattributed. Eisenhower's documented Rolex is a yellow-gold '''Datejust ref 6305''' on Jubilee, gifted to him in 1951 — five years before the Day-Date even existed.

John Lennon and 1803 — no documented 1803 surfaces in the auction or specialist record for Lennon. Treat unverified.

==Special branches and retailer signatures==

===Tiffany & Co. double-signed===

Production through the late 1970s. 1803 Tiffany examples come in yellow, rose, and white gold, with both Buckley-style Roman-numeral and standard baton configurations. Sotheby's Important Watches lot N09952/7 (yellow gold, 1973) is one of the documented public lots. Specialist auction platforms carry dedicated 1803 Tiffany-retail listings. Double-signed 1803s consistently trade at 2 to 3 times standard equivalents.

===Asprey of London===

Primary conduit for Omani Khanjar 1803s. The Asprey crossed-swords stamp inside the caseback identifies the London-retail chain. On Omani examples the Asprey mark is often paired with '''Khimji Ramdas (KR)''' import marks for Muscat distribution.

===Khanjar Oman / Sultan Qaboos===

Crossed sheathed khanjar daggers, sometimes under a kuma hat, in red, white, green, or gold — the Omani flag colours. Commissioned through '''Sultan Qaboos bin Said''' (reigned 1970-2020). Also '''Qaboos signature dials''' (the Sultan's hand-printed signature) and '''Royal Oman Police''' insignia variants. The Khanjar branch is the most-priced retailer-signed 1803 category, trading at 3 to 5 times standard equivalents.

===Saudi Khanjar / crossed swords===

Less common than Omani; ordered through similar diplomatic channels. Surfaces less frequently on the public market.

===Brazilian and Spanish-market day discs===

Period-correct retail commissions in Latin American and Iberian markets occasionally surface with native-language day discs (Portuguese, Spanish). Authenticated against same-period delivery documentation.

==Sources==

* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra
* [https://ottuhr.com/index/rolex/day-date-president/rolex-day-date-1803/ Ottuhr editorial, "Rolex Day-Date 1803 Reference Report", Ottuhr]
* [https://mondanibooks.com/rolex-day-date-history/ ''Rolex Day-Date Volume (Mondani Editore)'' — Mondani Family, Guido Mondani Editore]
* [https://www.puccipapaleo.com/bookstore/day-date/ ''Day-Date — The Presidential Rolex'' — Pucci Papaleo Editore, Spin Edizioni, 2015-05]
* [https://acollectedman.com/blogs/journal/the-colourful-world-of-rolex-stella-dials A Collected Man editorial, "The Colourful World of Rolex Stella Dials", A Collected Man]
* [https://italianwatchspotter.com/the-history-of-the-rolex-day-date/?lang=en Italian Watch Spotter editorial, "The History of the Rolex Day-Date", Italian Watch Spotter]
* [https://italianwatchspotter.com/watch-guide-rolex-stone-dials/?lang=en Italian Watch Spotter editorial, "Watch Guide: Rolex Stone Dials", Italian Watch Spotter]
* [https://hairspring.com/blogs/finds/ Hairspring editorial, "Hairspring — Khanjar Oman 1803 White Gold Blue Stella", Hairspring]
* [https://hairspring.com/blogs/finds/ Hairspring editorial, "Hairspring — Coral Stella 1803", Hairspring]
* [https://hairspring.com/blogs/finds/ Hairspring editorial, "Hairspring — Grey Ghost 1803", Hairspring]
* [https://hairspring.com/blogs/finds/ Hairspring editorial, "Hairspring — Doorstop 1803", Hairspring]
* [https://rolexpassionmarket.com/watches/rolex-break-point-rose-gold-1803 Rolex Passion Market editorial, "Rolex Break Point Rose Gold 1803", Rolex Passion Market]
* [https://rolexpassionmarket.com/watches/rolex-red-quarters-day-date-ref-1803 Rolex Passion Market editorial, "Rolex Red Quarters Day-Date 1803", Rolex Passion Market]
* [https://revolutionwatch.com/the-stella-revolution/ Revolution Watches editorial, "The Stella Revolution", Revolution Watches]
* [https://revolutionwatch.com/bourn-in-oman-the-rolex-collection/ Daniel Bourn, "Bourn in Oman: The Rolex Collection", Revolution Watches]
* [https://www.bobswatches.com/rolex-blog/resources/history-rolex-tiffany-dials Bob's Watches editorial, "History of Rolex Tiffany Dials", Bob's Watches]
* [https://www.bobswatches.com/rolex-blog/resources/quickset-vintage-day-date-models.html Bob's Watches editorial, "Quickset Vintage Day-Date Models", Bob's Watches]
* [https://www.phillips.com/ Phillips Watches Department, "Phillips Glamorous Day-Date Geneva May 2015 — Bart Simpson lot 6 + Left-Crown lot 49", Phillips, 2015-05-08]
* [https://www.sothebys.com/ Sotheby's Watches Department, "Sotheby's New York Important Watches December 2024 — Nasser 1803", Sotheby's, 2024-12-06]
* [https://www.heritageauctions.com/ Heritage Watches Department, "Heritage Auctions Lot 54041 (sale 5515) — LBJ-family-to-Klein 1803", Heritage Auctions]
* [https://www.sothebys.com/ Sotheby's editorial, "The Rolex Day-Date: A Complete Collector's Guide", Sotheby's]
* [https://www.craftandtailored.com/ Craft & Tailored editorial, "Craft & Tailored — 1963 1803 Underline Dial", Craft & Tailored]
* [https://www.craftandtailored.com/ Craft & Tailored editorial, "Craft & Tailored — 1970 1803 Wide-Boy Yellow Gold", Craft & Tailored]
* [https://watchbase.com/rolex/caliber/1556 Watchbase editorial, "Rolex Caliber 1556 — Watchbase", Watchbase]
* [https://www.rolexforums.com/showthread.php?t=11327271 Rolex Forums community, "Rolex Forums — 1803 Owners and Enablers Thread", Rolex Forums]
* [https://www.rolexforums.com/showthread.php?t=679606 Rolex Forums community, "Rolex Forums — 1803 Presidential Unusual Finishes", Rolex Forums]
* [https://www.tapatalk.com/groups/vintagerolexforum/ Vintage Rolex Forum community, "Vintage Rolex Forum — 1803 Threads (Tapatalk index)", Vintage Rolex Forum (Tapatalk)]

[[Category:Day-Date]]
[[Category:working-draft]]
[[Category:References]]

Reference:1803 - Revision history

Admin: Import reference 1803 article