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{{DISPLAYTITLE:Rolex 6240 Daytona}}
{{DISPLAYTITLE:Rolex 6240 Daytona}}
{{#seo:
{{#seo:
|title=Rolex Daytona 6240 — First Screw-Down-Pusher Daytona, 1965–1969 | Rolexopedia
|title=Rolex Daytona 6240 — Oyster Cosmograph with Screw-Down Pushers
|description=The 6240 introduced screw-down chronograph pushers and the Oyster case to the Daytona line in 1965. Contemporary descriptions give it a 100m rating; the page covers the disputed Neanderthal dial and early Millerighe pushers.
|description=Auction-grounded reference file for the Rolex Cosmograph Daytona 6240: dated examples, movement labels, dial forms, bracelets, and the disputed Neanderthal dial.
|keywords=Rolex 6240, Daytona 6240, Neanderthal, Millerighe, Oyster Cosmograph, screw-down pushers, Perezcope, Phillips Daytona Ultimatum, Mk0
|keywords=Rolex 6240, Daytona, Oyster Cosmograph, screw-down pushers, 72B, 722, 722-1, Millerighe, Neanderthal
|image=Ref 6240 hero.webp
|image=Ref 6240 hero.webp
|image_alt=Rolex Cosmograph Daytona Ref. 6240 — Neanderthal example
|image_alt=The Rolex 6240 known as the Neanderthal; its dial attribution is disputed
|type=Article
|type=Article
|og_type=article
|og_type=article
|published_time=2026-04-19T03:19:41Z
|published_time=2026-04-19T03:19:41Z
|modified_time=2026-08-04T00:13:53Z
|modified_time=2026-10-08T00:00:00Z
|robots=index,follow,max-image-preview:large
|robots=index,follow,max-image-preview:large
}}
}}


<small>[[Reference:daytona|Daytona]] › '''6240'''</small>
<small>[[Reference:daytona|Daytona]] → '''6240'''</small>


<div class="rp-lead">
<div class="rp-lead">
[[File:Ref 6240 hero.webp|thumb|center|640px|alt=Rolex Cosmograph Daytona Ref. 6240 — Neanderthal example|Rolex Cosmograph Daytona Ref. 6240 — Neanderthal example]]
[[File:Ref 6240 hero.webp|thumb|center|640px|alt=Steel Rolex 6240 Neanderthal lot; the dial attribution is disputed|Steel 6240 from the Phillips Neanderthal lot; dial attribution disputed]]
</div>
</div>


The 6240 introduced Rolex's Oyster format to the Cosmograph in 1965. Its screw-down chronograph pushers and crown improved water resistance, while its black acrylic tachymeter insert replaced the engraved metal bezel used on the 6239. Rolex made the reference in steel during a short run that preceded the 6263 and 6265.
The 6240 is a steel, manual-wind Cosmograph Daytona catalogued from about 1965 to 1969. It introduced screw-down chronograph pushers to the Daytona line and used a black acrylic tachymeter insert. Auction catalogues identify Cal. 72B, 722, and 722-1 in individual watches; they do not establish a clean changeover sequence.


<span id="core-facts"></span>
Christie’s calls the 6240 the first “Oyster Cosmograph” and describes early dials without “Oyster,” followed by later Oyster-marked examples. A 2026 auction catalogue also attributes an unnumbered 1964 prototype to the reference. That watch belongs in the development record, separate from serial-numbered production examples.


==Core facts==
==Core facts==


{| class="wikitable rp-facts"
{| class="wikitable rp-facts"
! Field !! Value
|-
|-
| Reference || 6240
! detail
! value
|-
|-
| Family || Daytona (Cosmograph, manual-wind)
| reference
| 6240
|-
|-
| Production || c.1965 to 1969
| model
| Rolex Cosmograph Daytona, manual-wind
|-
|-
| Movement || Valjoux 72 family; documented examples include 72B, 722, and 722-1; 18,000 vph
| production
| Auction descriptions place serial-numbered examples around 1965–1969; an unnumbered prototype is catalogued to 1964
|-
|-
| Case || about 37mm, 19mm lug width, screw-down chronograph pushers
| case material
| Stainless steel in the reviewed catalogues
|-
|-
| Crystal || acrylic
| case diameter
| Individual catalogues give 37 mm or 37.5 mm
|-
|-
| Bezel || acrylic insert with engraved tachymeter, black
| movement
| Auction labels include Valjoux-family 72B, 722, and 722-1; inspect the movement in each watch
|-
|-
| Crown || Twinlock screw-down
| pushers
| Screw-down chronograph pushers
|-
|-
| Water resistance || Contemporary descriptions give 100m / 330ft; do not assume a vintage example still passes a pressure test
| bezel
| Black acrylic tachymeter insert
|-
|-
| Dial || Standard Cosmograph, exotic dials, and sparsely documented "Solo" examples
| crown
| Screw-down; Phillips describes a Twinlock 700-series crown on its Neanderthal lot
|-
|-
| Bracelet || 7205 or 6635 rivet examples are documented; end links vary by fitment
| water resistance
| Monochrome reports 100 m for the design; this does not establish the condition of a surviving watch
|-
|-
| Successor || 6263 (screw-down pushers, long run)
| dial
| Early non-Oyster and later Oyster-marked dials, plus Solo and exotic examples
|-
|-
| Sibling || 6241 (acrylic bezel, pump pushers)
| bracelet examples
| Phillips records a 7205/71 combination and a separate 6635/57 combination; neither proves original delivery
|-
| sibling
| 6241, with pump pushers and an acrylic tachymeter insert
|-
| later Oyster references
| 6263 and 6265
|}
|}


<span id="where-it-sits-in-the-line"></span>
==Where it sits in the line==
== Where it sits in the line ==
 
The manual-wind Daytona references are easiest to separate by pusher type and bezel material. The 6239 used pump pushers and an engraved metal bezel; the 6241 used pump pushers and a black acrylic insert; and the 6240 introduced screw-down pushers in the Oyster branch. The 6262 and 6264 followed with pump pushers and the faster 21,600 vph Valjoux 727. The 6263 and 6265 then carried the screw-down Oyster format into the long production run. Published dates differ at the boundaries, especially around the 1969–1971 transition.
 
The screw-down pusher construction became the defining feature of the later Oyster Daytonas. The 6262 and 6264 briefly returned to pump pushers before the 6263 and 6265 made the screw-down format the long-running version.


<span id="production-outline"></span>
The 6239 used pump pushers and an engraved metal tachymeter bezel. The 6240 paired screw-down pushers with a black acrylic insert. Its sibling, the 6241, kept pump pushers with an acrylic insert. The later 6262 and 6264 returned to pump pushers, while the 6263 and 6265 carried the screw-down Oyster case into a longer production run. Published dates around the 1969–1971 transition vary by source.
== Production outline ==


Published examples place the run from about 1965 to 1969 and show serials in roughly the 1.1-million to 2.0-million range. Those ranges are working collector guides, not a Rolex production ledger. Rolex did not publish a total; auction and collector references commonly estimate about 1,700 to 2,000 watches, so any census should be treated as approximate.
The Swiss patent application for Rolex’s waterproof push button has an 11 June 1964 priority date. That filing dates the patented mechanism; it does not date a particular watch. [https://patents.google.com/patent/CH423638A/en The patent record] is separate from the 1964 prototype reported by Monaco Legend below.


Collectors commonly separate an early Millerighe-pusher group from the later smooth cylindrical-pusher watches. The often-cited 1.1M to 1.3M band is a working range, not a hard factory cutoff.
==Production outline==


Exotic dials appear among 6239, 6240, and 6241 examples, but the surviving literature does not establish a reliable start serial or production percentage. The Neanderthal, case 1439122, was sold at the 2018 Phillips Daytona Ultimatum auction and is the subject of the attribution dispute below.
Christie’s dates the 6240 to 1965–1969 and estimates about 1,700 examples. That is an auction-house estimate, not a factory count. Phillips and Sotheby’s date individual serial-numbered watches to 1965 or 1966. Their case numbers and catalogue dates are useful examples, not a serial-year chart.
 
<span id="movement-notes"></span>
== Movement notes ==
 
The 6240 uses the Rolex-modified Valjoux 72 family. Auction records and collector references identify 72B, 722, and 722-1 examples, so the reference number alone does not establish the caliber in a particular watch. These are 17-jewel, 18,000 vph, column-wheel chronographs with a horizontal clutch; the 727 brought the frequency change to 21,600 vph in the later 6262 and 6264.
 
Documented 6240 examples run at 18,000 vph; the faster movement belongs to the later 6262 and 6264 generation. A "ROW" import engraving can appear on US-bound movements, but it is an example-level observation rather than a universal reference marker.
 
<span id="dial-map"></span>
== Dial map ==
 
=== Serial / year / dial / lume / bracelet ===
 
{| class="wikitable"
! Serial range !! Year !! Dial !! Lume !! Bracelet !! End links !! Notes
|-
| 1.1M-1.3M (~1965) || 1965 || Mk0 Millerighe pusher (early), Cosmograph || tritium || 7205 || 271 || Introduction year. Mk0 Millerighe pushers are the early 6240 marker per Phillips Daytona Ultimatum.
|-
| 1.3M-1.6M (working range) || ~1966-1967 || Cosmograph, exotic examples including early Newman-style dials || tritium || 7205 || 271 or 71 family || The serial and dial ranges overlap; the Neanderthal case 1439122 falls in this broad group, but its dial attribution is disputed.
|-
| 1.6M-2.0M (~1968-1969) || 1968-1969 || Cosmograph, Paul Newman exotic || tritium || 7205 || 271 || Final two years before 6262 / 6264 succession with the faster Valjoux 727. The 7835 folded-link bracelet may have appeared on the very latest examples.
|}


Standard Oyster Cosmograph dials dominate the surviving record. Exotic dials are less common, and Solo is a separate, sparsely documented dial form.
The early pusher distinction is visible in the catalogues. Christie’s describes fine grooves on an early example as “mille righe” and contrasts them with deeper grooves on later pushers. Phillips also labels its 1965 lot as an early Millerighe example. The records do not set a serial-number cutoff, and a pusher on a surviving watch may have been replaced.


{| class="wikitable"
Monaco Legend’s 2026 catalogue describes an unnumbered prototype attributed to ref. 6240, with an internal Rolex technical transmission sheet dated 5 March 1964. The catalogue lists Cal. 722-1 and a 37 mm case. Keep this prototype apart from the serial-numbered watches: the sale record documents the auction house’s attribution and reported paperwork, not a commercial production date.
! Variant !! Distinguishing features !! Notes
|-
| Standard panda Cosmograph || Black dial, white sub-dials, "Rolex Oyster Cosmograph" three-line block at 12 || Most common configuration across the run
|-
| Standard reverse panda Cosmograph || Silver-white dial, black sub-dials, same text block || Less common than panda but not rare
|-
| Paul Newman exotic (Mk1) || Art-deco sub-dial numerals, square chrono hashes, contrasting outer minute track || Fitted intermittently across panda and reverse-panda backgrounds; the surviving record does not establish a production percentage
|-
| Solo dial || Only the Rolex coronet and "ROLEX" word printed at 12; no "Oyster Cosmograph" line || Italian collector terminology (''solo'' = "only"); small surviving population, attribution-sensitive
|-
| "Neanderthal" Paul Newman || Monochromatic black-and-white palette, larger-than-usual chrono registers, no dial lettering beyond Rolex coronet || Single attributed example, case 1439122; the dial attribution is disputed in Special branches
|}


Jose Pereztroika's "Perezcope" typology runs Paul Newman dials out to Mk1.75 and beyond for the longer 6263 / 6265 chapter; the disputed Neanderthal attribution turns on whether its dial is an early prototype or a later Mk1.75 dial swapped onto an early case.
==Movement notes==


<span id="case-bezel-crystal-and-crown"></span>
Auction catalogues identify Cal. 72B, 722, and 722-1 in individual 6240s; some also list 17 jewels. The [[Reference:Movements|movement guide]] gives the family’s rate as 18,000 vph. Christie’s records Cal. 722 in two circa-1965 examples; Phillips records 72B in the 1966 “Oyster Alpina” and the Neanderthal lot; Sotheby’s catalogues a circa-1965 example with 722-1. The catalogue dates and movement labels do not form a reliable transition chronology. Read the engraving on the watch itself.
== Case, bezel, crystal, and crown ==


The case is a steel Oyster case of about 37mm with 19mm between the lugs. Compared with the 6239, the 6240 adds screw-down chronograph pushers and an acrylic black tachymeter insert in place of the engraved metal bezel. Contemporary descriptions give the Oyster configuration a 100m rating, but that figure does not establish the present water resistance of an individual vintage watch.
Christie’s describes a 722 marked “ROW” on one example and identifies it as a US-market import code. The [[Reference:Movements|movement guide]] records other readings of ROW and notes that Rolex documentation has not settled its meaning. Treat the stamp as a lot-level observation.


The pushers appear in two broad forms. Early documented watches use the vertically grooved Millerighe pusher; later examples use the smooth cylindrical screw-down pusher. The transition is useful when comparing a watch with its serial and movement, but the surviving record does not provide a factory cutoff. A mismatch can reflect service work, a replaced case part, or misattribution.
==Dial map==


The bezel uses a black acrylic insert with a printed tachymeter scale. That separates the 6240 from the engraved metal bezel of the 6239 and 6262, while placing it alongside the 6241 and later 6263. Acrylic can crack, fade, or chip, so originality and condition have to be assessed on the individual watch.
Auction records show more than one inscription layout. Christie’s and Sotheby’s describe early examples without “Oyster”; Christie’s contrasts them with later dials carrying the Oyster designation. This is a sequence reported by auction catalogues, not a complete production chronology.


Crystal is acrylic, period-standard. Crown is Twinlock screw-down with the period-correct Oyster signature, the same crown architecture as the contemporary Submariner and GMT-Master.
Exotic or “Paul Newman” dials are documented on 6240 watches. Christie’s catalogues a black exotic dial on case 1,659,454, dated circa 1967. The reviewed records do not establish the share of 6240s fitted with exotic dials or a serial number at which they began.


<span id="bracelets-end-links-and-clasps"></span>
Christie’s uses “Solo” for the dial on case 1,205,996, catalogued circa 1966 with Cal. 72B. The term describes that lot’s sparse Rolex-only dial. The catalogue does not establish a separate factory reference or a production count for Solo dials.
== Bracelets, end links, and clasps ==


Auction records document 7205 and 6635 Oyster bracelets on 6240 watches. End-link stamps include the 71/271 family in surviving examples, but a bracelet or end link proves fitment more readily than original delivery. The often-repeated 7835 late-run assignment needs example-level documentation; there is no clean published transition for the reference.
The Neanderthal, case 1,439,122, has a black-and-white dial with unusually large subsidiary registers. Phillips presents it as a pre-Paul Newman prototype. Perezcope’s 2022 analysis argues that the dial is a later transfer, citing an April 1998 magazine photograph that appears to show the dial in another watch and differences in its printing. The attribution remains disputed.
 
Both bracelets used the small-logo folding clasp generation that ran from 1958 to roughly 1969. The clasp is signed inside the blade with a quarterly date code in the pre-1976 format: Roman numeral quarter plus two-digit year, e.g. "II.66" for the second quarter of 1966. The clasp dates the bracelet, not the watch head; period-correct clasps carry codes within or close to the watch's serial-derived production year.
 
<span id="special-branches"></span>
== Special branches ==


<gallery mode="packed" heights="180">
<gallery mode="packed" heights="180">
File:Ref 6240 neanderthal-orologi-market-1998.webp|alt=Orologi & Market April 1998 page documenting the Neanderthal|Orologi & Market April 1998 page documenting the Neanderthal
File:Ref 6240 neanderthal-phillips-lot.webp|Phillips Daytona Ultimatum lot 32, catalogued as the Neanderthal
File:Ref 6240 neanderthal-singer-comparison.webp|alt=Singer dial-stamp comparison|Singer dial-stamp comparison
File:Ref 6240 neanderthal-singer-comparison.webp|Singer stamp comparison used in the published dial analysis
File:Ref 6240 neanderthal-phillips-lot.webp|alt=Phillips Daytona Ultimatum 2018 Neanderthal lot|Phillips Daytona Ultimatum 2018 Neanderthal lot
File:Ref 6240 neanderthal-orologi-market-1998.webp|April 1998 Orologi & Market photograph cited in the Neanderthal dial dispute
</gallery>
</gallery>


<span id="the-neanderthal-6240"></span>
==Case, bezel, crystal, and crown==
=== The "Neanderthal" 6240 ===


The disputed 6240 is case 1439122, the Neanderthal. Phillips sold it as the earliest Paul Newman prototype; Jose Pereztroika at Perezcope later argued that the dial was a much later construction. Both positions remain part of the published record.
The auction records reviewed here give case diameters of 37 mm and 37.5 mm. They describe a stainless-steel Oyster case, screw-down chronograph pushers, a screw-down crown, and a black acrylic tachymeter insert. Some retrospective histories report a 100 m rating for the design; a vintage watch needs its own inspection and pressure test before anyone treats it as water-resistant.


Perezcope's 2022 dossier argues for a later construction, citing a dial photographed in another watch and differences in typography, tritium text, minute-track color, and Singer stamp. Phillips's catalogue presents the dial as an early prototype. Those sources disagree about the dial; neither one substitutes for an independent examination of the watch.
Christie’s describes fine-grooved early pushers and contrasts them with deeper grooves on later examples. Phillips notes that the plating on its Neanderthal lot’s brass pushers had worn through. These observations help identify the photographed lots; they do not prove a factory cutoff or the originality of pushers on another watch.


Phillips's lot essay and Pucci Papaleo's auction treatment support the prototype reading. Perezcope reads the dial as a later swap onto an early case. The published dispute is about the dial; this page does not independently authenticate the case or movement.
The reviewed catalogues do not specify the crystal material for each example. The photographs show the visible surface, not whether a particular crystal is original or a later service replacement.


<span id="solo-dials"></span>
==Bracelets, end links, and clasps==
=== Solo dials ===


The Solo dial, with only the Rolex coronet and "ROLEX" word printed at 12 and no "Oyster Cosmograph" line, surfaces in small numbers across early manual-wind Daytona references. Perezcope's earlier work documented at least one Solo example with the "Cosmograph" line erased, and the Italian collector tradition (''solo'' = "only") treats Solo dials as a known small-population variant rather than a single nicknamed example. Documented 6240 Solo examples are scarce and almost always carry attribution caveats. The dial's removal of standard text makes it a high-risk variant for retroactive modification.
Phillips records a 1966 “Oyster Alpina” on a riveted 7205 bracelet with 71 end links and a clasp stamped 4.66. Its Neanderthal lot is catalogued with a 6635 bracelet, 57 end links, and a clasp stamped 4.65. Sotheby’s describes a Jubilee bracelet on its 2012 example but does not give a bracelet reference in the listing.


<span id="jps-style-configurations"></span>
These are auction-described combinations, not proof of original delivery or a complete fitment list. A clasp stamp dates the clasp, not the watch head. The broader [[Reference:Bracelets|bracelet guide]] covers the limits of using a clasp code to date a watch.
=== JPS-style configurations ===


The JPS black-and-gold colourway is associated mainly with the 14k yellow-gold 6241, the pump-pusher sibling. A 6240 marketed as JPS falls outside the usual Pucci Papaleo and Phillips 6240 classifications, so its case, dial, pushers, and provenance need to be checked together.
==Auction record==


<span id="tropical-examples"></span>
The records below describe individual watches. Christie’s estimates about 1,700 examples for the reference; the catalogues do not provide a Rolex production ledger.
=== Tropical examples ===


Tropical 6240 dials, in which a black surface has aged toward brown, are reported but less common than comparable 6263 and 6265 examples. Color change alone does not establish originality; dial printing, surface condition, case, movement, and service history still need to agree.
{| class="wikitable"
 
|-
<span id="historical-market-and-auction-record"></span>
! Sale record
== Historical market and auction record ==
! Catalogue date and number
 
! What the catalogue records
The 2018 Phillips sale of the Neanderthal is the best-known public auction record for the reference. Other 6240 results are difficult to compare because dial originality, Millerighe pushers, case condition, and bracelets vary widely.
|-
 
| [https://www.christies.com/en/lot/lot-5808817 Christie’s, lot 5808817]
For any comparison, separate standard dials, exotic dials, and disputed configurations. Millerighe pushers, an original bezel, an unaltered dial, and a period-correct bracelet can affect a result, but auction evidence is too thin to turn those features into a fixed price rule.
| circa 1965; case 1,298,415
| Cal. 722, black matte dial, 37.5 mm case, fine-grooved “mille righe” pushers.
|-
| [https://www.christies.com/lot/lot-6212858 Christie’s, lot 6212858]
| circa 1965; case 1,298,267
| Cal. 722 stamped ROW, 17 jewels, 37 mm case; Christie’s identifies ROW as a US-market import code.
|-
| [https://www.phillips.com/detail/rolex/158342 Phillips, Geneva Watch Auction XIV, lot 234]
| 1965; case 1,269,446
| Cal. 722, 37.5 mm case, Millerighe pushers, riveted expandable Oyster bracelet and C+I clasp stamped 7-67. Sold for CHF 107,100.
|-
| [https://www.sothebys.com/en/auctions/ecatalogue/2012/important-watches/lot.258.html Sotheby’s, Important Watches 2012, lot 258]
| circa 1965; case 1,439,224
| Cal. 722-1, 37 mm case, early non-Oyster dial; Sotheby’s condition report describes a Jubilee bracelet.
|-
| [https://www.phillips.com/detail/rolex/CH080016/10 Phillips, Start-Stop-Reset, lot 10]
| 1966; case 1,438,971
| Cal. 72B, “Oyster Alpina” dial, 7205/71 bracelet and clasp stamped 4.66.
|-
| [https://www.christies.com/lot/lot-6269161 Christie’s, lot 6269161]
| circa 1966; case 1,205,996
| Cal. 72B; Christie’s describes the sparse dial as “Solo.”
|-
| [https://www.phillips.com/detail/rolex/CH080318/32 Phillips, Daytona Ultimatum 2018, lot 32]
| circa 1966; case 1,439,122
| Cal. 72B, 6635/57 bracelet, clasp 4.65; dial attribution disputed. Sold for CHF 3,012,500.
|-
| [https://www.christies.com/en/lot/lot-6424494 Christie’s, lot 6424494]
| circa 1967; case 1,659,454
| Black Paul Newman dial; the catalogue records a 37.5 mm case and an Oyster bracelet with clasp stamped 4.67.
|-
| [https://www.monacolegendauctions.com/auction/exclusive-timepieces-38/lot-229 Monaco Legend, Exclusive Timepieces 38, lot 229]
| 1964 prototype; no commercial serial
| Auction catalogue reports a Rolex technical transmission sheet dated 5 March 1964, Cal. 722-1 and 37 mm case. Sold for €125,000.
|}


== Related references ==
==Related references==


* [[Reference:6241|Daytona 6241]], "John Player Special", 14k gold (1966–1969)
* [[Reference:6239|Daytona 6239]], pump pushers and engraved metal bezel
* [[Reference:6262|Daytona 6262]], pump-pusher Daytona (1970–1972)
* [[Reference:6241|Daytona 6241]], pump pushers and acrylic bezel insert
* [[Reference:6264|Daytona 6264]], Paul Newman dials (1970–1972)
* [[Reference:6262|Daytona 6262]] and [[Reference:6264|Daytona 6264]], later pump-pusher references
* [[Reference:6234|Daytona 6234]], pre-Daytona (1955–1961)
* [[Reference:6263|Daytona 6263]] and [[Reference:6265|Daytona 6265]], later screw-down-pusher references
* [[Reference:6263|Daytona 6263]], Paul Newman, Big Red, and RCO dials (1969–1988)
* [[Reference:daytona|Daytona family index]], [[Reference:Movements|movement guide]], [[Reference:Serial-numbers|serial-number guide]]
* [[Reference:6265|Daytona 6265]], screw-pusher Oyster (1971–1988)


See also the [[Reference:daytona|Daytona family index]], [[Reference:Movements|movement reference]], [[Reference:Bracelets|bracelet & clasp guide]], and [[Reference:Serial-numbers|serial numbers by year]].
==Gallery==


<gallery mode="packed" heights="180">
<gallery mode="packed" heights="180">
File:Ref 6240 hero.webp|Rolex Cosmograph Daytona Ref. 6240
File:Ref 6240 hero.webp|Neanderthal lot, with disputed dial attribution
File:Ref 6240 neanderthal-orologi-market-1998.webp|Orologi & Market 1998 Neanderthal reference
File:Ref 6240 neanderthal-phillips-lot.webp|Phillips Daytona Ultimatum lot 32
File:Ref 6240 neanderthal-singer-comparison.webp|Singer dial-stamp comparison
File:Ref 6240 neanderthal-singer-comparison.webp|Singer stamp comparison
File:Ref 6240 neanderthal-phillips-lot.webp|Phillips Daytona Ultimatum 2018 lot
File:Ref 6240 neanderthal-orologi-market-1998.webp|Orologi & Market 1998 photograph cited in the dial dispute
</gallery>
</gallery>
[[Category:Daytona Manual-Wind]]


== Sources ==
== Sources ==
* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra
* ''The Vintage Rolex Field Manual'' — Colin A. White, Morning Tundra
* [https://monochrome-watches.com/history-rolex-daytona-chronograph-1963-in-depth-review/ In-Depth: The History of the Rolex Daytona, The Emblematic Racing Chronograph] — Erik Slaven, Monochrome
* [https://patents.google.com/patent/CH423638A/en Rolex SA, "Swiss patent CH423638A, Waterproof push button", Swiss Federal Institute of Intellectual Property / Google Patents record, 1965]
* [https://www.phillips.com/auctions/auction/CH080318 Phillips — Daytona Ultimatum (Geneva, 12 May 2018)] — Pucci Papaleo (curator); Aurel Bacs (auctioneer), Phillips in Association with Bacs & Russo
* [https://monochrome-watches.com/history-rolex-daytona-chronograph-1963-in-depth-review/ Erik Slaven, "In-Depth: The History of the Rolex Daytona, The Emblematic Racing Chronograph", Monochrome, 2024-12-20]
* [https://perezcope.com/2022/11/03/rolex-daytona-6240-paul-newman-neanderthal-a-myth-goes-extinct/ Rolex Daytona 6240 Paul Newman "Neanderthal" — A Myth Goes Extinct] — Jose Pereztroika, Perezcope
* [https://goldammer.me/blogs/articles/reference-guide-rolex-daytona Marcus Siems, "A Beginner's Guide to the Early Rolex Daytona (1963-88)", Goldammer, 2022-12-20]
* [https://www.hodinkee.com/articles/the-first-rolex-daytona-by-benjamin-clymer Historical Perspectives: The Very First Rolex Daytona, Explained (Or, What Is A Double-Swiss Underline Daytona?)] — Benjamin Clymer, Hodinkee
* [https://www.christies.com/en/lot/lot-5808817 "Christie’s, ref. 6240 case 1,298,415, lot 5808817", Christie’s]
* [https://www.acollectedman.com/blogs/journal/rolex-pre-daytona-forgotten-classic Is the Rolex Pre-Daytona a Forgotten Classic?] — Russell Sheldrake, A Collected Man
* [https://www.christies.com/lot/lot-6212858 "Christie’s, ref. 6240 case 1,298,267, lot 6212858", Christie’s]
* [https://watchesbysjx.com/2018/05/penultimate-picks-from-daytona-ultimatum-at-phillips.html Penultimate Picks from Daytona Ultimatum at Phillips] — Richard Lee, SJX Watches
* [https://www.christies.com/lot/lot-6269161 "Christie’s, ref. 6240 “Solo,” case 1,205,996, lot 6269161", Christie’s]
* [https://goldammer.me/blogs/articles/reference-guide-rolex-daytona A Beginner's Guide to the Early Rolex Daytona (1963-88)] — Marcus Siems, Goldammer
* [https://www.christies.com/en/lot/lot-6424494 "Christie’s, ref. 6240 Paul Newman dial, case 1,659,454, lot 6424494", Christie’s]
* [https://www.watchtime.com/brands/watches/tracking-the-rolex-daytona-a-53-year-history Tracking the Rolex Daytona: A 55-Year History] — WatchTime Team, WatchTime
* [https://www.phillips.com/detail/rolex/CH080016/10 "Phillips, Start-Stop-Reset, lot 10 — ref. 6240 “Oyster Alpina”", Phillips, 2016]
* [https://www.vintagewatchstraps.com/ Vintage Watch Straps — Rolex bracelet and clasp reference] — David Boettcher, vintagewatchstraps.com
* [https://www.sothebys.com/en/auctions/ecatalogue/2012/important-watches/lot.258.html "Sotheby’s, Important Watches 2012, lot 258 — ref. 6240", Sotheby’s, 2012]
* [https://www.phillips.com/detail/rolex/158342 "Phillips, Geneva Watch Auction XIV, lot 234 — ref. 6240", Phillips, 2022]
* [https://www.phillips.com/detail/rolex/CH080318/32 "Phillips, Daytona Ultimatum 2018, lot 32 — “The Neanderthal”", Phillips, 2018]
* [https://www.monacolegendauctions.com/auction/exclusive-timepieces-38/lot-229 "Monaco Legend Auctions, Exclusive Timepieces 38, lot 229 — 6240 prototype", Monaco Legend Auctions, 2026]
* [https://perezcope.com/2022/11/03/rolex-daytona-6240-paul-newman-neanderthal-a-myth-goes-extinct/ Jose Pereztroika, "Rolex Daytona 6240 Paul Newman "Neanderthal" — A Myth Goes Extinct", Perezcope, 2022-11-03]


[[Category:Daytona Manual-Wind]]
[[Category:Daytona]]
[[Category:Daytona]]
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