Rolex serial numbers
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Rolex used numeric case serials, then letter-prefixed serials, and later randomized alphanumeric strings. Numeric and letter-prefixed ranges can suggest a production period. Randomized serials have no public year mapping. None of these systems establishes the originality of the dial, movement or bracelet.
The three systems
Rolex restarted its numeric case sequence in the mid-1950s. The same short number can therefore fall in more than one period. Letter-prefixed serials appeared around 1987; randomized serials followed around 2010. Neither change happened as a simple one-year boundary across every reference.
Finding the serial number
On many Oyster references made before the rehaut transition of the mid-2000s, the serial is engraved between the lugs at 6 o'clock, beneath the bracelet. The reference number is usually between the opposite lugs at 12 o'clock. Earlier case designs need reference-specific guidance.
The serial moved to the rehaut, the inner ring around the dial, during the 2000s. It appears at 6 o'clock. The change varied by reference; compare transition-period watches with documented examples of the same model. Serial placement alone does not establish a case replacement.
Matching serials link a warranty card or guarantee paper to the case number, provided the document itself is authentic. They do not establish the originality of every component. The clasp uses a separate dating system. A movement can carry caliber designations, part references and an individual movement number; identify the marking before interpreting it.
Numeric serials (≤1987)
The table transcribes selected entries from the Pergola and Dowling–Hess charts reproduced in these photographs. These are unofficial collector charts. Dowling–Hess places serial 132,562 in III 1953; Pergola puts 63,425–139,166 in 1955. The disagreement cannot be resolved by averaging the dates.
The table is selective, with gaps between some entries. For a number outside it, compare documented examples of the reference. A matching row supplies an estimate, not proof of manufacture, assembly or sale in that year.
| Serial / range in source | Date assigned by source | Chart |
|---|---|---|
| 23,969 | 1928 | Dowling and Hess |
| 28,290 | 1930 | Dowling and Hess |
| 35,365 | 1935 | Dowling and Hess |
| 99,775 | 1940 | Dowling and Hess |
| 143,509 | 1942 | Dowling and Hess |
| 387,216 | 1946 | Dowling and Hess |
| 529,163 | 1947 | Dowling and Hess |
| 628,840 | 1948 | Dowling and Hess |
| 710,776 | 1951 | Dowling and Hess |
| 840,396 | 1952 | Dowling and Hess |
| 927,301–929,261 | 1952/1953 | Pergola |
| 929,262–974,681 | 1953 | Pergola |
| 974,682–982,114 | 1953/1954 | Pergola |
| 982,115–999,999 | 1954 | Pergola |
| 10,001–32,180 | 1954 | Pergola, restarted sequence |
| 32,181–63,424 | 1954/1955 | Pergola |
| 63,425–139,166 | 1955 | Pergola |
| 139,167–147,690 | 1955/1956 | Pergola |
| 147,691–261,715 | 1956 | Pergola |
| 272,289–360,987 | 1957 | Pergola |
| 381,923–426,480 | 1958 | Pergola |
| 437,255–530,168 | 1959 | Pergola |
| 539,969–663,484 | 1960 | Pergola |
| 688,767–785,296 | 1961 | Pergola |
| 840,046–919,916 | 1962 | Pergola |
| 950,451–974,197 | 1963 | Pergola, after the reset |
| 997,136–1,104,068 | 1964 | Pergola |
| 1,141,050–1,269,458 | 1965 | Pergola |
| 1,284,790–1,503,591 | 1966 | Pergola |
| 1,534,083–1,695,119 | 1967 | Pergola |
| 1,720,977–1,938,064 | 1968 | Pergola |
| 1,958,607–2,236,978 | 1969 | Pergola |
| 2,357,480–2,558,656 | 1970 | Pergola |
| 2,558,657–2,591,204 | 1970/1971 | Pergola |
| 3,215,500 | 1971 | Dowling and Hess |
| 3,478,400 | 1972 | Dowling and Hess |
| 3,741,300 | 1973 | Dowling and Hess |
| 4,004,200 | 1974 | Dowling and Hess |
Conflicting catalogue dates: reference 6244
Catalogue dates differ even for nearby case numbers on the Oyster Royal 6244. Phillips dates case 834,991 to 1952. Christie's gives circa 1959 for case 836,438 and 1962 for case 836,447, only nine numbers apart. These catalogue dates do not establish a continuous production sequence. The reference page lists further examples.
Letter serials (1987–2010)
Letter-prefixed case serials usually contain one letter and six digits. The years below come from Colin A. White's The Vintage Rolex Field Manual, page 27. These collector estimates overlap and should be checked against the individual reference.
| Prefix | Years listed by White |
|---|---|
| R | 1987–1988 |
| L | 1989 |
| E | 1990 |
| N | 1991 |
| X | 1991 |
| C | 1992 |
| S | 1993–1994 |
| W | 1995 |
| T | 1996 |
| U | 1997–1998 |
| A | 1999 |
| P | 2000 |
| K | 2000–2001 |
| Y | 2001–2002 |
| F | 2003–2005 |
| D | 2005–2006 |
| Z | 2006–2007 |
| M | 2007–2008 |
| V | 2008–2009 |
| G | 2010 |
Phillips records Explorer 114270 case G030393 with a guarantee dated 30 November 2010. That records a transaction date; it does not date the manufacture of the case.
Case serial prefixes and clasp codes are different systems. A letter on the clasp cannot be read as the same letter in the case-serial table.
Random serials (around 2010 onward)
Rolex began using randomized case serials around 2010, during the period of the final letter prefixes. Mixed-letter-and-digit serials have no public year mapping. A guarantee can establish a recorded sale date, but the serial alone cannot give the exact production year.
For a modern watch, start with the production span of the reference and any dated paperwork. Randomized clasp codes also lack a public year mapping. The case serial remains useful for linking records to a particular watch.
Early references and hallmark dating
For early Prince, Bubbleback and manual Oyster references such as 3478, compare the case number with examples of the same reference and material. A chart covering later Oyster production may not describe an earlier case-number sequence. British hallmarks on precious-metal cases provide a separate assay date. Steel cases need other evidence.
Auction catalogues for ref. 2765 date individual watches from circa 1930 to circa 1942. Dawsons dates serial 76,781 to 1939; Bonhams dates serial 90,509 to circa 1939 and 140,782 to circa 1941. David Lay and Sotheby's identify the same case as 85,883; Finarte records 14,277; Christie's records 83,259 and 83,447; Bonhams publishes 85,7**, 90,509, 90,698, 90,501, 90,751, 90,939 and the partial number 133***, plus case 140,782. Auctionet gives case 90,995 without a production date. Christie's 1935 lot and Sotheby's 2004 catalogue give no case number. These dates apply to individual catalogue examples and do not establish a reference-wide serial sequence.
Ref. 3009 has scattered auction-assigned dates and case numbers, which do not establish a serial sequence. Bonhams records a Glasgow import mark dated 1937 on case 37845; the mark dates the assay or import, not manufacture. Antiquorum records a 1947 presentation inscription on case 474700, while its catalogue estimates the watch to circa 1959. Keep those dates attached to their separate evidence. Bonhams, case 37845; Antiquorum, case 474700.
Ref. 1873 shows why catalogue dates belong to individual watches. Sotheby’s dates case 30,967 to circa 1930; Antiquorum dates cases 48,634 and 100,498 to the 1930s; Bonhams dates case 81,343 to circa 1939; and Christie’s dates case 100,459 to circa 1940. Bonhams records a London import mark dated 1937 on gold case 37,029; that is an assay/import date. Cambi lists case 48.xxx as circa 1954, an outlier among these entries. The records do not establish a factory production range.
Two Antiquorum catalogue entries for 3003 and 3004 give case dimensions but no case serials, so they do not establish a serial range. The 3004 lot title claims 144 examples in 1937; that statement is not a serial anchor or an independently confirmed production total. Compare the case number with other examples, and use assay marks on precious-metal cases as a separate date clue.
Auction dates for ref. 3130 also need to stay attached to individual watches. Sotheby's calls case 104789 circa 1937 ([2013 lot 197](https://www.sothebys.com/en/auctions/ecatalogue/2013/watches-n09002/lot.197.html)); Phillips calls case 521'285 circa 1945 and one of the last generation ([2021 lot 18](https://www.phillips.com/detail/rolex/159994)); Christie's catalogues case 443093 circa 1948 ([2007 lot 2858](https://www.christies.com/en/lot/lot-5008631)) and another 3130 circa 1955 ([catalogue](https://www.christies.com/lot/lot-rolex-a-14ct-gold-automatic-centre-seconds-4133893/)). The estimates conflict and do not set a serial range or factory production end. Compare the serial, movement, case and any assay marks on the watch itself.
The 3525 records show why dates should stay attached to individual watches. Antiquorum dates the Nutting case 185,983 to 1941; Sotheby’s dates case 186,144 to circa 1942 and case 372,822 to circa 1945. Sotheby’s describes an earlier group with the reference and serial on the outer caseback, and a later group with the reference inside and the serial between the lugs. These are auction-house estimates, not a Rolex production ledger. A serial alone does not establish when a watch was made or delivered.
Auction estimates for ref. 3372 also conflict. Sotheby's dates case 43,903 to circa 1938 ([2026 lot 2341](https://www.sothebys.com/en/buy/auction/2026/important-watches-4-2/oyster-perpetual-bubbleback-reference-3372-a-pink?locale=en)); Antiquorum dates case 481,380 to 1938 ([2017 lot 90](https://catalog.antiquorum.swiss/en/lots/rolex-ref-3372-bubble-back-lot-310-90)); Phillips assigns circa 1945 to case 301,684 ([2015 lot 206](https://www.phillips.com/detail/rolex/CH080215/206)); and Antiquorum dates case 424,291 to circa 1959 ([2024 lot 75](https://catalog.antiquorum.swiss/en/lots/rolex-ref-3372-oyster-perpetual-bubble-back-lot-367-75)). These dates do not form a reliable serial sequence and do not establish the factory production span.
Auction catalogues give case numbers 612627, 612848, 612967, 612990, 613514, 613853 and 613876 for individual ref. 5031 watches. Their dating differs: Bonhams, Sotheby’s and Tennants call examples circa 1948, while Antiquorum dates its 1999 lot to the 1950s and its 1995 lot to the 1960s. Those case numbers cluster, but the catalogues do not establish a production range. Bonhams listed case 612990 twice in 2025 with the same movement number 37574; it is one watch, not two serial anchors.
Phillips dates ref. 6031 case 683,837 to circa 1949; Sotheby’s dates case 693,873 to circa 1950. These two auction-house date estimates do not establish a 6031 serial range or year-by-year sequence.
For ref. 6075, Antiquorum dates cases 685,082 and 714,441 to 1950, while Phillips dates case 714,440 to 1951. Antiquorum gives circa 1951 for case 715,511; Cambi Aste assigns circa 1961 to an incomplete case number 715.xxx. The catalogues conflict, and their estimates do not establish a serial range or prove a production end year. Compare the engraved case number, movement and any independent date evidence on the individual watch. Antiquorum 2006, lot 122; Antiquorum 2014, lot 107; Phillips 2015, lot 284; Antiquorum 2022, lot 147; Cambi Aste 2022, lot 96.
Oyster Perpetual 1005 dated examples
Auction catalogues date 1005 case 826,301 to 1962 or circa 1963; the two records appear to describe the same pink-gold watch. Other dated examples include cases 903,017 and 926,416 (circa 1962–63), 1,050,796 (circa 1964), 1,176,167 (inside caseback code II.65), 1,177,843 (circa 1966), 1,586,108 (catalogued 1971, with a guarantee booklet dated 22 December 1971), 1,801,509 (circa 1968), 3,021,909 (circa 1971), 3,367,203 (London import mark dated 1973), and 3,921,444 (circa 1974). Sotheby’s catalogued case 7,126,615 as circa 1995, but that date conflicts with the serial sequence and should not be treated as a secure production date. These are isolated auction and component dates, not a serial-year chart or production range.
Oyster Perpetual 1003 dated examples
Auction catalogues date 1003 case 512,833 to circa 1960 and case 573,835 to circa 1960; the certificate accompanying case 573,835 is dated 22 December 1960, which dates the certificate rather than proving the case’s production date. Other catalogued examples include case 531,734 (circa 1966), case 1,197,501 (1964), case 3,044,042 (1972), case 3,960,865 (circa 1975), and case 5,426,177 (1977). A Glasgow import mark dates a 9K case to 1961, while a 1966 receipt accompanies a separate 9ct example. These individual records do not form a serial-year chart or establish production limits. Sotheby’s, case 5,426,177; Antiquorum, case 3,044,042; Sotheby’s, case 3,960,865.
Day-Date 6511 case examples
Auction catalogues date 6511 case 111,654 to the fourth quarter of 1955 and case 134,692 to 1955; Phillips lot 40 lists a guarantee dated 7 May 1957. Monaco Legend lists case 111,695 as 1955, although the lot prose says 1956, and gives 1956 for case 166,725. These lot dates do not create a production range or a serial-year chart. Check the case number and any hallmarks on the watch, and keep bracelet/clasp dates separate from the head. The cited sources also disagree on movement identification: Phillips gives 1555 for case 111,654, while other 6511 catalogues list 1055.
Day-Date 6612 case examples
Auction catalogues date platinum case 403,679 and case 403,680 to 1958, white-gold case 394,866 to 1958, and platinum case 382,921 to circa 1958. Bonhams dates a yellow-gold 6612/8 with serial 446*** to circa 1959. These are individual auction estimates, not a serial-number chronology; the clasp stamped 3.59 on case 403,680 and March 1959 clasp on the 446*** example date bracelets, not watch heads.
Day-Date 6612B case examples
Auction catalogues date yellow-gold case 384,933 to 1957; pink-gold case 395,916, white-gold case 394,866 and platinum case 403,679 to circa 1958; platinum case 382,921 to circa 1958; and platinum case 446,052 to circa 1959. These are catalogue estimates, not a factory serial chart or proven production bounds. Christie's Dubai gives 446,062 for the last example, but Phillips and Sotheby's both list 446,052 and the Dubai entry refers to those sales. Phillips and Christie's list a clasp stamp of 1.59 on the platinum bracelet; that dates the bracelet, not the watch head. Monaco Legend, case 384,933; Christie's and https://catalog.antiquorum.swiss/en/lots/rolex-ref-6612b-day-date-lot-370-143?page=8 Antiquorum, case 395,916; Monaco Legend, case 394,866; Monaco Legend, case 403,679; Christie's, case 382,921; Phillips and https://www.sothebys.com/en/buy/auction/2021/fine-watches-11/day-date-reference-6612b-a-platinum-and-diamond Sotheby's, case 446,052.
Day-Date 6611 case examples
Phillips dates yellow-gold case 214,124 to 1956 and white-gold 6611B case 401,546 to 1958. Antiquorum dates movement number 386,339 on a gold 6611B to about 1958. These catalogue dates fit the commonly published late-1950s sequence but do not form a factory serial chart. Two steel school-watch lots have no case number and give conflicting dates, 1954 and circa 1959; the 1963 engraving is a school dedication, not a case-production date. Compare each head and movement separately.
Glasgow and Edinburgh assay marks
British hallmarks can identify the assay office, metal standard, sponsor and assay year. The sponsor is the party responsible for submitting the item; the mark does not necessarily identify its manufacturer. Imported cases may carry different office marks from domestic work. Match the complete punch, including its shield and lettering, to the correct office and period.
For a Glasgow or Edinburgh mark, use that office's historical import-mark chart. Date-letter cycles and the dates on which letters changed varied between offices and periods. The letter records assay, which may precede assembly or retail sale. David Boettcher's guide explains these distinctions. Opening a case requires suitable tools and care.
Antiquorum describes Prince 971 case 70,064 as sterling silver with a Glasgow import stamp and a 1928 hallmark. The date is the auctioneer's reading of the hallmark; it does not establish when the movement was made or fitted.
Assay letters and case-serial prefixes
The R, L and later case-serial prefixes belong to a system introduced around 1987. They cannot decode assay letters on 1920s–1950s Prince cases. Those letters belong to the assay office's own sequence.
Prince dating examples
The table lists catalogue observations on Prince watches and related Eaton presentation pieces. “c.” means an approximate date assigned by the auctioneer. Hallmark readings and presentation inscriptions are identified separately. These examples do not define the start or end of a reference's production.
| Reference | Case number | Material / configuration | Hallmark / dating | Source |
|---|---|---|---|---|
| 971 | 70,064 | sterling silver | Glasgow import hallmark dated 1928 by Antiquorum | Antiquorum New York, March 2010, lot 401 |
| 971 | 70,668 | sterling silver | Glasgow 1929 | Bonhams London 2018 lot 37 |
| 971 | 71,883 | sterling silver | c.1929–1930 | Sotheby's 2019 |
| 971 | 011,651 | steel + Beyer-signed dial | c.1928 | Phillips Geneva X CH080319/17 |
| 971 | 6,013 | platinum, Cal. 300 7½′′′ 18-jewel | c.1935 | Phillips Geneva V/X/XIV |
| 971 | 6,047 | platinum | 1935 | Phillips 2015 Watch Auction One lot 210 |
| 971 | 6,077 | platinum | c.1930 | Antiquorum 2013 |
| 971 | 1,472 | Eaton 1/4 Century Club dial; catalogue descriptions of the metals differ | presentation inscription 1907–1932 | Monaco Legend, July 2019, lot 156 |
| 971 | 60,206 | 9K two-colour gold | c.1934 | Antiquorum 2020 lot 235 |
| 971 | 65,196 | 18K striped two-colour gold (971A) | c.1930 | Antiquorum 2015 lot 275 |
| 971 | 65,377 | 18K striped two-colour gold (971A) | c.1932 | Antiquorum 2006 lot 316 |
| 971 | 68,305 | 9K two-colour gold (971A) | c.1932 | Bonhams NY 2017 lot 133 |
| 971 | 68,591 | 18K striped two-colour gold (971A) | c.1938 | Bonhams HK 2023 lot 644 |
| 1490 | 13,009 | 18K yellow gold | Glasgow 1933 | Phillips NY 2023 NY080223/92 |
| 1490 | 17,365 | steel + pink gold | Cal. T.S. 300 Ultra Prima, 1935 | Antiquorum May 2006 Mondani lot 46 |
| 1490 | 38,525 | steel + Bucherer-signed dial | c.1937 | Sotheby's Watches Online July 2019 lot 13 |
| 1490 | 58,115 | 18K (group lot with 1862) | c.1930 | Christie's Geneva 1395 lot 307 |
| 1490 | 73,910 | steel | c.1936 | Bonhams Nov 2023 lot 50 |
| 1862 | 1,608 | 9K | Glasgow 1934 | Antiquorum 249-98 |
| 1862 | 16,237 | 9K Glasgow + Cal. 527 | Glasgow 1934 | Christie's online lot 31 (sale 13523) |
| 1862 | 16,663 | 18K (group lot with 1490) | c.1938 | Christie's Geneva 1395 lot 307 |
| 1862 | 280,124 | 18K yellow (1862A variant) | c.1930 | Sotheby's NY 2018 n09911 lot 53 |
| 1491 | not given | 18K yellow gold jump-hour Brancard | Glasgow Import mark 1930 | Bonhams sale 29152 lot 23 |
| 1491 | 1,578 | 9K white gold, Bucherer-retailed | invoice dated 1945 | Antiquorum, March 2008, lot 692 |
| 1491 | F220 | two-colour 18K gold, jumping-hour display | c.1930 | Bonhams, sale 29152, lot 6 |
| 1527 | 189 | 18K white + yellow gold stepped Railway, bamboo-style bracelet | dated 1931 | Antiquorum May 2006 Mondani lot 108/33 |
| 1527 | 6,920 | white and pink gold; catalogued as 1527 M | c.1930s | Drouot, lot 182 |
| 1527 | 6936 | 18K white + pink stepped | Glasgow 1931 | EveryWatch lot 378 |
| 1527 | not given | steel + gold-filled stepped Railway | 1940s | Bonhams NY 2006 sale 15217 lot 9 |
| 3361 | 899,568 | 18K yellow gold Aerodynamic | dated 1952 (Mondani Collection) | Antiquorum, May 2006, lot 210 |
| 3361 | 899,677 | 18K pink gold Aerodynamic with monogrammed escutcheon | dated 1952 | Antiquorum, May 2006, lot 209 |
| 3362 | 62,482 | 14K pink gold | c.1935, as dated by Antiquorum | Antiquorum, May 2015, sale 291, lot 109 |
| 3937 | 64,190 | 14K yellow gold Rams Horn | 1938 | Bonhams 2023 lot 50 |
| 3937 | not given | 14K yellow gold, Eaton 1/4 Century Club | Garbett presentation inscription 1926–1951 | Sotheby's NY 2020 lot 73 |
| 6222 (Eaton presentation) | not given | automatic Oyster | presentation inscription 1929–1954 | Antiquorum Hong Kong 2005, sale 86, lot 19 |
These examples use several case-number ranges across different materials and references. A high number does not establish a later production date across the whole Prince family. Antiquorum dates the two 3361 cases numbered 899,568 and 899,677 to 1952; the presentation dates on Eaton watches record later events in their ownership. None of these observations establishes a family-wide production endpoint.
Caseback engraving conventions
Keep case and reference stamps separate from personal inscriptions. An engraved name or service anniversary records a presentation or ownership claim. It cannot establish the date of the case, and hand engraving alone does not establish a replacement. Monaco Legend's 971, case 1,472, bears an Eaton service inscription ending in 1932.
Padellone 8171: anomalous numbers and conflicting dates
Reference 8171 has a shallow case number and coronet engraved on the outside of its snap-on back. Wear and polishing can reduce their legibility. The case number, movement number and a dated certificate should be recorded separately. Benjamin Clymer, illustrated 8171 study
Phillips catalogued steel case 1977074 as circa 1950 despite its unusually high number. Its essay and SJX discuss later manufacture or assembly, but provide no factory record resolving the discrepancy. A general serial chart cannot settle the date of this particular watch. Phillips Geneva X, lot 175; SJX, 2019
Sotheby’s dates case 686356 to circa 1963 while describing early-1950s production in the same entry. That conflict does not establish a 1963 production extension. Pink-gold case 667005 has a more useful document: Phillips lists an accompanying timing certificate dated 13 April 1950. The certificate dates that event, not necessarily casing or retail sale. Sotheby’s, lot 2143; Phillips Geneva XXI, lot 72
Submariner, Explorer and GMT dating examples
The following table compares catalogue dates with case numbers on selected Submariner, Explorer and GMT watches. Dates without an identified hallmark, stamp or document are the named source's estimates. A cluster of nearby numbers does not establish a production total or guarantee dating to within a year or two.
| Reference | Case number | Catalogue configuration | Date or dated mark reported by source | Source | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 6204 (Submariner) | 949,136 | honeycomb dial | 1953 | Phillips Geneva XII 2020 lot 177 | ||||||||||||||||||||||||||||||
| 6204 | 988,613 | gilt, US Navy provenance | c.1953–54 | Sotheby's 2018 lot 250 | ||||||||||||||||||||||||||||||
| 6204 | 988,773 | Sub-Aqua, end-link 65 | 1954 | Phillips Geneva Watch Auction TWO 2015 lot 292 | ||||||||||||||||||||||||||||||
| 6204 | 988,923 | pencil hands, gilt | c.1954, clasp 2.53 | Phillips NY Watch Auction 2021 lot 79 | ||||||||||||||||||||||||||||||
| 6204 | 988,929 | Sub-Aqua tropical | 1954 | Antiquorum Geneva 2013 lot 577 | ||||||||||||||||||||||||||||||
| 6204 | 42,439 | Sub-Aqua dial; catalogued as a prototype | 1954 | Monaco Legend 2019 lot 69 | ||||||||||||||||||||||||||||||
| 6205 (Submariner) | 21,354 | pencil hands, no-Submariner dial, riveted Oyster end-link 65 | c.1954, Series 1 | Phillips Game Changers NY 2019 lot 54 | ||||||||||||||||||||||||||||||
| 6205 | 21,442 | Mercedes hands, gilt gloss, stretch riveted bracelet | c.1954–55 | Sotheby's Fine Watches 2022 lot 13 | ||||||||||||||||||||||||||||||
| 6205 | 21,644 | re-lumed reprinted no-Submariner dial | 1954–55 | Antiquorum Geneva 2025 lot 377-180 | ||||||||||||||||||||||||||||||
| 6205 | 85,972 | Mercedes, gilt no depth (Series 2) | 1955 | Sotheby's Important Watches NY 2019 lot 178 | ||||||||||||||||||||||||||||||
| 6205 | 86,033 | Atelier de Restauration 2023 restoration | 1955 | Sotheby's Important Watches II 2025 lot 336 | ||||||||||||||||||||||||||||||
| 6200 (Submariner) | 320,xxx–322,xxx | Big Crown 8mm Brevet, A296, Explorer or red depth | 1954–56 | Nicholas Foulkes, Oyster Perpetual Submariner (Wallpaper / ACC Art Books, 2024) | ||||||||||||||||||||||||||||||
| 6536/1 (Submariner) | 112,256 | caseback stamped "4 55", Jubilee bracelet stamped 1960 | 1955 | Sotheby's 2021 lot 35 | ||||||||||||||||||||||||||||||
| 6536/1 | 112,341 | Red Depth, IV.55 caseback | 1955 | Bonhams Dec 2021 lot 36 | ||||||||||||||||||||||||||||||
| 6536/1 | 155,502 | caseback stamped II.56, on 7206 rivet bracelet | 1956 | Phillips Geneva V 2017 lot 102 | ||||||||||||||||||||||||||||||
| 6536/1 | 229,640 | I.57 caseback | 1957 | Sotheby's 2018 lot 215 | ||||||||||||||||||||||||||||||
| 6536 (parent) | 306,706 | gloss black gilt, red triangle bezel | March 1957 | Bonhams London 2012 lot 116 | ||||||||||||||||||||||||||||||
| 6536/1 | 306,989 | III.57 caseback, no-hash red triangle, glossy gilt | 1957 | Sotheby's NY 2018 lot 252 | ||||||||||||||||||||||||||||||
| 6536 | 399,228 | brown tropical dial | c.1959 | Sotheby's London 2019 lot 121 | ||||||||||||||||||||||||||||||
| 6538 (Submariner) | 140,300–140,500 (Series 1) | case-number band proposed by Blackbird | c.1956 | Blackbird Biebuyck (2019) | ||||||||||||||||||||||||||||||
| 6538 | 158,100–158,400 (Series 2) | four-line OCC dial concentration | c.1957–58 | Blackbird Biebuyck (2019) | ||||||||||||||||||||||||||||||
| 6538 | 307,100–307,600 (Series 3) | two-line gilt | 1958 | Blackbird Biebuyck (2019) | ||||||||||||||||||||||||||||||
| 6538 | 426,000–449,300 (Series 4) | fourth group in Blackbird's classification | late 1958 / 1959 | Blackbird; Sotheby's Olmsted 2024 lot 170 case 449,004 | ||||||||||||||||||||||||||||||
| 5510 (Submariner big crown) | 362,153 | Explorer dial, fixed bars; attributed to Royal Australian Navy use | 1958 | Sotheby's Important Watches 2023 lot 107 | ||||||||||||||||||||||||||||||
| 5510 | 362,187 | reprinted Explorer dial; attributed to Royal Australian Navy use | 1958 | Antiquorum Monaco 2018 lot 314-248 | ||||||||||||||||||||||||||||||
| 5510 | 362,252 | privately purchased watch used by a Royal Navy diver; later 93150/580 bracelet | Bonhams dates manufacture and purchase to 1958; caseback 1.1958 | Bonhams, June 2009, lot 140 | ||||||||||||||||||||||||||||||
| 5508 (Submariner small crown) | 361,650 | black gilt, red triangle insert | 1958 | Phillips Geneva NINE 2019 lot 213 | ||||||||||||||||||||||||||||||
| 5508 | 400,505 | tropical dial, 1960 papers | 1958 | Sotheby's Fine Watches 2023 lot 40 | ||||||||||||||||||||||||||||||
| 5508 | 489,831 | black dial | 1959 | Sotheby's Watches Online 2020 | ||||||||||||||||||||||||||||||
| 5508 | 490,575 | faded bezel insert, rivet bracelet '63 | 1958 | Antiquorum Geneva 2020 lot 333-422 | ||||||||||||||||||||||||||||||
| 5508 | 762,896 | exclamation gilt, II.62 caseback, 7206/64 bracelet | 1962 | Phillips Hong Kong SPORTS 2019 lot 881 | ||||||||||||||||||||||||||||||
| 5508 | 764,524 | exclamation, 6636 clasp 4/64 | 1962 | Phillips Geneva XV 2022 lot 160 | ||||||||||||||||||||||||||||||
| 6098 (Pre-Explorer / Oyster Perpetual) | 912,378 | steel + Sesto Continente "Super Oyster" provenance, IV.52 caseback | caseback IV.52; source dates the watch to 1952 | Vailati 1953 letter to Rolex Archives (Perezcope) | ||||||||||||||||||||||||||||||
| 6150 (Pre-Explorer) | 931,134 | H.S.10 CD Royal Navy with crow's foot | c.1953 | Sotheby's Fine Watches 2025 L25713 | ||||||||||||||||||||||||||||||
| 6150 | 944,811 | H.S.10 CD, Burford matte-black Swiss T Precision printing, MOD broad-arrow | February 1953 | Bonhams 18849/181 | ||||||||||||||||||||||||||||||
| 6150 | 944,925 | "Oyster Perpetual Precision" dial | 1953 | Antiquorum Geneva 2022 lot 349-152 | ||||||||||||||||||||||||||||||
| 6150 | 945,021 | "KANGCHENJUNGA 1955 G.C BAND" caseback engraving | 1953 case, 1955 expedition gift | Phillips Geneva Watch Auction SIX 2017 lot 244 | ||||||||||||||||||||||||||||||
| 6150 | 945,096 | A296 18j, Oyster expandable bracelet | c.1953 | Sotheby's 2022 / 2024 (same example reoffered) | ||||||||||||||||||||||||||||||
| 6350 | 955,761 | Douglas Prior 1956 Royal Society Antarctic Expedition, Cal. 775 service replacement | 1953 case | Antiquorum Geneva 2018 lot 317-570 | ||||||||||||||||||||||||||||||
| 5513 (Submariner, no-date) | 765,450 | gloss black "exclamation" Explorer dial, cal. 1530; riveted Oyster 7206 / 80 end-links, clasp 4.62 | c.1962 (I.62) | Phillips Geneva EIGHT lot 23 | ||||||||||||||||||||||||||||||
| 5513 | 979,313 | gilt / gloss underline Explorer dial; folded Oyster 9315 / 580 end-links | c.1963 | Phillips Geneva XIV lot 153 | ||||||||||||||||||||||||||||||
| 5513 | 991,837 | underline double-Swiss gilt dial; Oyster 6636, clasp dated Q1 1964 | 1963 (III.63) | Phillips Geneva THREE lot 106 | ||||||||||||||||||||||||||||||
| 5513 | 1,023,362 | gloss Explorer (3-6-9) dial, Garrard guarantee 23 March 1965; Jubilee bracelet | c.1964 | Sotheby's Important Watches 2020 lot 377 | ||||||||||||||||||||||||||||||
| 5513 | 6,2XX,XXX | Mark III "maxi" dial, cal. 1520; 93150 Oyster, service-replacement clasp S6 | c.1979 | Bonhams Watches and Wristwatches 2019 lot 103 | ||||||||||||||||||||||||||||||
| 5513 (COMEX) | 2,833,552 | helium escape valve; COMEX 24 | 1970 | Antiquorum Geneva, November 2006, lot 323 | ||||||||||||||||||||||||||||||
| 5514 | 3,804,841 | helium escape valve; dial without COMEX logo | 1972 | Antiquorum New York, 2009, sale 223, lot 373 | ||||||||||||||||||||||||||||||
| 5514 | 4,089,919 | COMEX 377, matte black, 9315 bracelet, Henry Hudson letter | 1975 | Phillips NY Watch Auction SIX 2022 lot 153 | ||||||||||||||||||||||||||||||
| 5514 | 4,155,901 | COMEX 446; caseback also engraved 68504-Ci, attributed to the Argentine Navy by Phillips | 1974 | Phillips Geneva TWO, 2015, lot 145 | ||||||||||||||||||||||||||||||
| 5514 | 5,230,258 | COMEX 878, "Big Numbers" wrap-around caseback | 1977 | Antiquorum Monaco 2025 lot 383-172 | ||||||||||||||||||||||||||||||
| 5517 (MilSub, Royal Navy / Army) | around 3,926,000 | 5513-only and 5513/5517 double-reference; issue years 77/79 | 1972–1975 | Phillips New York 2019 lot 28 case 3,926,768; Phillips HK 2017 lot 807 case 3,926,923; Antiquorum Monaco 2022 lot 77 case 3,926,842 | ||||||||||||||||||||||||||||||
| 5517 | around 5,339,000 | 5517-only between-lugs engraving, sword hands, full 60-min bezel; issue year 78 | 1977–1978 | Phillips Geneva XIV 2021 lot 152 case 5,339,827; Sotheby's 2023 lot 3 case 5,339,705 issue 853/78 | ||||||||||||||||||||||||||||||
| 1680 (Submariner Date, Red Sub) | 2,241,069 | Mark II "tropical" meters-first dial, red Submariner text; Oyster 9315, clasp 3.71 | c.1969 (III.69) | Phillips WINNING ICONS lot 4 | ||||||||||||||||||||||||||||||
| 1680 | 2,421,653 | Mark IV "tropical" Red Sub, feet-first "open 6s"; folded Oyster 9315, 280 end-links, clasp 4.70 | c.1970 | Phillips Geneva XIV lot 155 | ||||||||||||||||||||||||||||||
| 1680 | 2,631,521 | Mark IV red dial, cream indexes; Oyster 7836, clasp 3-69 | 1970 (I.70) | Phillips Geneva SEVEN lot 108 | ||||||||||||||||||||||||||||||
| 1680 | 3,184,430 | single-red Submariner dial; 93150 Oyster, clasp CL9 | c.1972 | Bonhams London Fine Watches 2025 lot 18 | ||||||||||||||||||||||||||||||
| 1680 | 3,740,344 | feet-first Red Sub dial, Tiffany & Co. retailer signature | c.1974 | Sotheby's Important Watches II 2024 | ||||||||||||||||||||||||||||||
| 1680 | 5,429,380 | ref. 1680/8 18k yellow gold, blue sunray dial; gold Oyster, clasp 3.71 | c.1978 | Phillips Geneva SEVEN lot 238 | ||||||||||||||||||||||||||||||
| 1680 | 6,1XX,XXX | Mark 1 "White Submariner" (closed 6s), white-text dial | c.1979 | Bonhams Hong Kong Watches 2022 lot 928 | 16808 (Submariner Date, 18k yellow gold) | 6,412,142 | black nipple dial; guarantee dated 10 August 1982 | c.1979 | Christie’s, lot 6539583 | 16808 | 6,667,544 | calibre 3035; inside caseback stamped 16800; clasp stamped 92908, end links 46; later guarantee dated 9 September 1987 | c.1981 | Phillips, lot 15 | 16808 | 7,538,212 | blue nipple dial; catalogue describes tropical brown change | 1982 | Monaco Legend, lot 220 | 16808 | 9,623,728 | blue nipple dial catalogued as tropical brown | c.1987 | Sotheby’s, lot 8 | ||||||||||
| 1675 (GMT-Master, red-and-blue bezel) | 1,004,133 | underline + double-Swiss gilt dial, pointed crown guards, cal. 1560; bracelet 6636 / 80 end-links, clasp 3.64 | c.1963 (IV.63) | Phillips "Rolex Milestones" lot 810 | ||||||||||||||||||||||||||||||
| 1675 | 1,323,448 | MK III late-gilt gloss dial (SWISS - T<25), cal. 1570; bracelet 7206 / 80 end-links, clasp 4.65 | c.1965 (IV.65) | Phillips Hong Kong Sessions Spring 2026 lot 8019 | ||||||||||||||||||||||||||||||
| 1675 | 1,686,416 | matte black dial, steel red-and-blue bezel, cal. 1570 | c.1967 | Sotheby's Watches 2020 lot 76 | ||||||||||||||||||||||||||||||
| 1675 | 1,796,673 | matte black "Fuchsia" insert, cal. 1570, movement D091203 with ROW marking; clasp 7-68 | 1967 (II.67) | Phillips New York Watch Auction SEVEN lot 25 | ||||||||||||||||||||||||||||||
| 1675 | 5,468,961 | 18k yellow gold, black dial, President bracelet, cal. 1570 | c.1978 | Sotheby's Watches 2020 lot 77 | ||||||||||||||||||||||||||||||
| 16750 (GMT-Master, first quickset) | 6,250,744 | matte black dial, black bezel insert (spare red-and-blue bezel included), cal. 3075; 93150 Oyster, clasp VC | c.1981 | Bonhams Knightsbridge 2024 lot 95 | ||||||||||||||||||||||||||||||
| 16750 | 7,625,315 | black dial, Omani police emblem, cal. 3075; 62510H Jubilee / 555 end-links, clasp G4 | c.1983 | Bonhams Fine Watches 2021 lot 68 | ||||||||||||||||||||||||||||||
| 16750 | 8,631,078 | glossy dial with cracked lacquer, cal. 3075; 78360 Oyster / 580 end-links, clasp I6 | c.1984 | Phillips Hong Kong EIGHT lot 1180 | 16550 | case 8399062 | black raised-marker “bicchierini” dial; cal. 3085 | 1983 (Christie’s catalogue date) | Christie’s lot 217; date and prototype story are the auction essay’s account | 16550 | case 8584610 | black raised-marker dial; cal. 3085 | c.1984 | Antiquorum Geneva 2020 lot 250; catalogue calls it a prototype | 16550 | serial B431181 | cream rail dial; cal. 3085 | c.1985 | Antiquorum Monaco 2017 lot 274 | 16550 | case 9376077 | black raised-marker dial; cal. 3085 | c.1986 | Antiquorum Hong Kong 2021 lot 244; catalogue calls it a prototype | 16550 | case 9,673,878 | cream rail dial; cal. 3085 | c.1987 | Sotheby’s Watches Weekly 2020 lot 2 | 16550 | case R828043 | cream rail dial; cal. 3085 | c.1988 | Sotheby’s Geneva 2020 lot 652 |
| 16750 | R672618 | gloss black dial, R-prefix | c.1988 | Bonhams Hong Kong Watches 2019 lot 845 | ||||||||||||||||||||||||||||||
| 16760 (GMT-Master II) | 8,463,283 | red-and-black bezel, cal. 3085 27j | c.1984 | Sotheby's Important Watches HK 2021 lot 2004 | ||||||||||||||||||||||||||||||
| 16760 | R275863 | red-and-black bezel, mvt 1994435, 78790 service-replacement bracelet | c.1988 | Bonhams Knightsbridge 2023 lot 28031/167 | ||||||||||||||||||||||||||||||
| 16760 | R434190 | full set with Merksamer Jewelers guarantee, mvt 2102621 | c.1988 | Phillips Geneva Watch Auction X 2019 lot 149 | ||||||||||||||||||||||||||||||
| 16700 (GMT-Master) | R-serial | 1988 red-and-blue bezel, 78360 / RS11 clasp | 1988 | Bonhams 25956/4 | ||||||||||||||||||||||||||||||
| 16700 | T254282 | 1996 red-and-blue bezel delivered Dec 1996, full set with Beyer receipt | 1996 | Antiquorum Geneva 2020 lot 329-88 | ||||||||||||||||||||||||||||||
| 16700 | T848499 | c.1996 red-and-blue bezel, with extra black bezel, cal. 3175 | 1996 | Sotheby's Geneva Important Watches 2019 lot 10 | ||||||||||||||||||||||||||||||
| 16700 | W752611 | c.1995 red-and-blue bezel, faded bezel, tritium dial | 1995 | Sotheby's Fine Watches Online 2024 lot 417 | ||||||||||||||||||||||||||||||
| 16700 | U443556 | 1997 Chuck Yeager / Real McCoy's No. 14/50, Bell X-1 1947 caseback | 1997 | Bonhams 25232/969 | ||||||||||||||||||||||||||||||
| 16700 | U453541 | c.1997 Chuck Yeager / Real McCoy's No. 21/50 | 1997 | Phillips Hong Kong XI 2020 lot 862 | ||||||||||||||||||||||||||||||
| 16700 | A245609 | c.1999 Chuck Yeager / Real McCoy's | 1999 | Sotheby's Hong Kong 2019 lot 2023 |
Record an inside-caseback stamp exactly as it appears. Roman numerals I–IV are often read as quarters, but the Caseback date codes guide describes a VI 1966 stamp that does not fit that convention. A dated caseback is a component observation. Service replacements and exchanged backs can separate its date from the rest of the watch.
Comparing the components
An early serial range suggests a case date. Compare the bracelet reference, dial and movement separately. A clasp code dates the marked component, and a replacement clasp or bracelet does not change the case date.
A bracelet from the same period as the case may be period-correct without being original to that watch. Matching date estimates alone cannot establish original delivery.
Per-reference serial detail
The Daytona 16520 and individual manual-wind Daytona pages compare serials with dial and component changes. For long-running references such as the Air-King 5500, compare examples from the relevant period; one broad serial span cannot describe every configuration.
A different reference stamped inside the caseback needs comparison with documented examples of that model. Assess the fit and markings together before accepting the back as original or period-correct.
- Phillips, 2015, ref. 6511 case 111,654, date and movement listing
- Phillips, 2015, ref. 6511 case 134,692
- Monaco Legend, 2023, ref. 6511 case 111,695
- Monaco Legend, 2024, ref. 6511 case 166,725
Sources
- Phillips 2015, ref. 6611 case 214,124, dated 1956
- Phillips 2015, ref. 6611B case 401,546, dated 1958
- Antiquorum 2017, ref. 6611B, movement 386,339
- Antiquorum 2002 steel school-watch lot, catalogued circa 1959
- Antiquorum 2013 steel school-watch lot, catalogued as 1954
- Benjamin Clymer, Hodinkee: 8171 case markings
- Phillips Geneva X, lot 175: 8171 case 1977074
- SJX, 2019: 8171 serial anomaly
- Sotheby’s Hong Kong, 2020, lot 2143: 8171 case 686356
- Phillips Geneva XXI, lot 72: 8171 case 667005 and dated certificate
- RolexHaven, Serial numbers: photographs of the Pergola and Dowling–Hess charts transcribed above.
- Colin A. White, The Vintage Rolex Field Manual, pp. 26–27: case-serial systems and the letter table.
- RolexHaven, Caseback date codes: component-date caveats and photographed stamps.
- Goldsmiths' Company Assay Office, What is a hallmark?: the meaning of office, sponsor, fineness and date marks.
- David Boettcher, British import hallmarks: historical office marks and date-letter cycles.
- Phillips, Explorer 114270, lot 8012: G030393 and the November 2010 guarantee.
- Phillips, Oyster Royal 6244, lot 211; Christie's lot 214 and lot 3229: differing catalogue dates for nearby case numbers.
- Antiquorum, Prince 971, March 2010, lot 401: case 70,064 and the catalogue's 1928 hallmark reading.
- Monaco Legend, Prince 971, July 2019, lot 156: case 1,472 and its Eaton inscription. The title and essay describe steel and yellow gold; the material field instead lists yellow and white gold.
- Antiquorum, Geneva, March 2008, lot 692 and lot 693: separate 1491 and 1491HS watches; the 1945 Bucherer invoice accompanies lot 692, case 1,578.
- Bonhams, Submariner 5510, June 2009, lot 140: case 362,252, purchase history and the bracelet recorded at auction.
- Antiquorum, COMEX 5513, November 2006, lot 323; Phillips, COMEX 5514, Geneva TWO, lot 145: reference, case-number and inscription details.
- The tables identify further auction and specialist sources beside each observation; see the linked reference articles for additional lot records.
- Antiquorum, 2006, ref. 6075 case 685082
- Antiquorum, 2014, ref. 6075 case 714441
- Phillips, 2015, ref. 6075 case 714440
- Antiquorum, 2022, ref. 6075 case 715511
- Cambi Aste, 2022, ref. 6075 case 715.xxx