Rolex 6612 Day-Date
Day-Date → 6612
The 6612 is the smooth-bezel version of the early four-digit Day-Date series, alongside the fluted 6611 and diamond-set 6613. Auction catalogues place examples in the late 1950s and describe both gold and platinum cases. The surviving records do not establish a factory production span or a complete specification for every 6612.
Core facts
| detail | value |
|---|---|
| reference | 6612 |
| family | Day-Date |
| production | Late 1950s in published reference histories; dated auction examples include 1958 and circa 1959 |
| movement | Auction catalogues describe caliber 1055; some 6612B catalogues use B1055. Registry naming varies. |
| case | 35–36mm reported in the cited lots; yellow, white and platinum examples documented |
| crystal | Plastic (Phillips 2015) |
| bezel | Smooth; a 1958 Phillips example has platinum bezel |
| bracelet | President bracelets appear on some examples; original delivery is not established for every watch |
| calendar | Day display at 12 and date at 3 on documented examples |
| related designation | 6612/B and 6612B appear in auction catalogues; consistent factory meaning for the suffix is not established |
Where it sits in the line
Phillips describes the early 66xx group as 6611 with a fluted bezel, 6612 with a smooth bezel, and 6613 with a diamond-set bezel. That distinction is useful for reading the catalogued examples, though later bezel changes and case markings can complicate an individual watch's history. The 6612 follows the smooth-bezel 6510 in appearance; the movement and dial descriptions in 6612 auction records differ from those of the first-generation 6510.
Rolex dates the Day-Date's debut to 1956 but does not give dates for individual references. Collector histories commonly place the 6611–6613 group around 1957–1959. Dated 6612-family auction examples cited here run from 1958 to circa 1959; that is a record of catalogued watches, not a production ledger. The four-digit 1800 series appears in the following period.
Production outline
The dated examples show that the smooth-bezel reference appeared in yellow and white gold as well as platinum. Bonhams catalogued a yellow-gold 6612/8 with serial 446*** as circa 1959. Monaco Legend dated a white-gold 6612B, case 394,866, to 1958 and a platinum 6612B, case 403,679, to 1958. Phillips dated the consecutive platinum case 403,680 to 1958. These are auction-house dates and descriptions; they do not set the first or last year of production.
The reference is less visible in published auction records than the fluted 6611, but the number of catalogue entries is not a measure of total production. No verified factory production count or complete serial range is available here.
Movement notes
Auction catalogues do not use one movement label consistently. Phillips lists caliber 1055 in its 1958 platinum 6612. Bonhams lists 1055 in a circa-1959 gold 6612/8. Monaco Legend also lists 1055 for its 6612B examples, while some other catalogues use B1055 or 1055B. Christie’s Dubai lot 65 lists B1055 on a platinum watch whose caseback is stamped 6612 and 6613; the catalogue says earlier Phillips and Sotheby’s entries gave the wrong case number. The standard caliber registry groups the later chronometer-grade movement under 1055B, but the lot descriptions do not show whether each watch retains its original movement. See Reference:Movements for the broader 1055 record.
For an individual watch, record the caliber as engraved or as documented by the source, and keep the suffix in that source's wording. The available catalogues do not support claims that every 6612 has a 1055B, that the date changes at exactly midnight, or that a particular movement label alone proves a production date.
Dial map
The auction examples show several dial configurations rather than one fixed layout. Phillips's 1958 platinum 6612 has a grey dial with eight round-cut and two baguette-cut diamond markers. Monaco Legend's platinum 6612B, case 403,679, has a yellowed dial and Eastern Arabic day and date discs; the catalogue describes diamond indexes with stones omitted at six and nine. Christie's catalogued a circa-1958 platinum 6612/B, case 382,921, with a matte black dial and baguette diamond indexes. These records establish the described examples, not factory-wide dial rules.
Bonhams's circa-1959 yellow-gold 6612/8 is catalogued with a champagne dial and applied faceted batons. Day-disc language and dial furniture should be recorded from the individual watch; a single auction description does not establish which options were available throughout the run.
Case, bezel, crystal, and crown
The catalogues report case diameters from 35 to 36mm: Bonhams gives 35mm for its yellow-gold 6612/8, while Phillips, Monaco Legend and Christie’s give 36mm for other examples. They describe smooth bezels. Phillips identifies a plastic crystal on case 403,680, and Bonhams describes a screw-down Oyster crown and caseback on the 6612/8. These records do not establish a single measurement or complete case specification for every watch.
Materials in the records include yellow gold, white gold and platinum. The platinum examples have different case numbers: Phillips's case 403,680 and Monaco Legend's case 403,679 form a consecutive pair; Christie's separately catalogued platinum case 382,921. Phillips called the 403,680 watch one of two platinum examples known in 2015. That historical count should not be repeated as a current census in light of later catalogued examples.
Bracelets, end links, and clasps
Phillips's case 403,680 was catalogued on a President bracelet with a clasp stamped 3.59. Monaco Legend describes the 403,679 platinum watch on an unusual tessellated platinum bracelet, not a President bracelet. Bonhams's 6612/8 was catalogued on a gold President bracelet with a clasp dated March 1959. A clasp date belongs to the bracelet, not the watch head; none of these descriptions alone proves original delivery.
Special branches
Platinum and gem-set examples
Several auction records document platinum 6612-family watches, with different case numbers and dials. Phillips's 2015 lot 43 is case 403,680, dated 1958, with a grey diamond-set dial. Monaco Legend's 2024 lot 67 is case 403,679, also dated 1958, with Eastern Arabic calendar discs and a tessellated bracelet. Christie's catalogued case 382,921 as a circa-1958 6612/B with a black baguette-diamond dial. The catalogues use 6612, 6612B and 6612/B; they do not establish whether those forms represent distinct factory references.
Case stamped 6612 and 6613
Christie’s Dubai catalogue describes a platinum watch as 6612B, with “6612” and “6613” stamped inside the caseback. It notes that Phillips and Sotheby’s had previously catalogued the watch with an incorrect case number. Phillips’s Geneva Watch Auction XIII also describes a separate case with both 6612 and 6613 markings and interprets the 6613 stamp as a later bezel change. These are catalogue interpretations of specific watches; they do not establish a factory 6612/6613 sub-reference.
The 6612B designation
Auction houses apply 6612B to gold and platinum watches, and Christie's also writes 6612/B. Their descriptions document individual watches but do not explain the suffix from a factory source. Some movement references associate a B suffix with a later plate revision, but the auction descriptions cited here identify several 6612B watches simply as caliber 1055. Treat the suffix as a catalogue designation unless the particular watch's movement and case documentation establish more.
Auction record
| sale | date assigned by catalogue | watch | result |
|---|---|---|---|
| Phillips, Glamorous Day-Date, Geneva, lot 43 | 1958 | Platinum 6612, case 403,680; grey diamond-set dial; President bracelet clasp stamped 3.59 | CHF 473,000 |
| Monaco Legend, Exclusive Timepieces 38, lot 67 | 1958 | Platinum 6612B, case 403,679; Eastern Arabic calendar; tessellated platinum bracelet | €512,500 |
| Monaco Legend, Exclusive Timepieces 36, lot 26 | 1958 | White-gold 6612B, case 394,866; diamond-set dial; leather strap | €72,500 |
| Bonhams, Fine Watches, lot 353 | circa 1959 | Yellow-gold 6612/8, serial 446***; champagne dial; President bracelet with March 1959 clasp | £3,000–4,000 estimate |
| Christie's, Important Watches, lot 6590177 | circa 1958 | Platinum 6612/B, case 382,921; matte black dial with baguette diamond indexes | Sale result not verified |
Auction descriptions preserve the house's own reference spelling, dating and movement attribution. Estimates and results are lot-specific and do not define a market range for the reference.
Related references
- Day-Date 6611 (fluted bezel)
- Day-Date 6612B (catalogue designation used for some smooth-bezel examples)
- Day-Date 6510 (earlier smooth-bezel reference)
- Day-Date 6511 (earlier fluted-bezel reference)
- Day-Date 1803 (four-digit successor family)
See also the Day-Date family index, movement reference, bracelet and clasp guide, and serial numbers by year.
Sources
- Rolex, history 1953–1967 — dates the Day-Date debut to 1956; does not date individual references.
- Phillips, Glamorous Day-Date, Geneva, lot 43 (2015) — platinum 6612 case 403,680; movement 1055; dial, bracelet and clasp description.
- Phillips, Glamorous Day-Date catalogue — lot 43 details and the 2015 two-example statement.
- Monaco Legend, lot 67 — platinum 6612B case 403,679 and catalogue description.
- Monaco Legend, lot 26 — white-gold 6612B case 394,866.
- Bonhams, lot 353 — yellow-gold 6612/8 catalogued circa 1959.
- Christie's, lot 6590177 — platinum 6612/B case 382,921, circa 1958.
- Christie’s Dubai, 6612B lot 65 — B1055 attribution and conflicting 6612/6613 caseback marks; prior catalogue case numbers corrected.
- Phillips, Geneva Watch Auction XIII — describes the 6611/6612/6613 bezel distinctions and discusses later case markings.
- Monochrome Watches, Day-Date history — secondary chronology for the 1956 originals and 1957 6611; not a factory 6612 production record.
- Rolex Magazine, 1957 President bracelet advertisement — advertisement reproduction; does not establish a bracelet's fitment to an individual watch.