Reference:1803: Difference between revisions
| [checked revision] | [checked revision] |
Audit 1803 prose, dating, source claims and auction table |
Correct Christie’s coral-dial attribution and gallery placement |
||
| (3 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
{{DISPLAYTITLE:Rolex 1803 Day-Date}} | {{DISPLAYTITLE:Rolex 1803 Day-Date}} | ||
{{#seo: | {{#seo: | ||
|title=Rolex Day-Date 1803 — Fluted | |title=Rolex Day-Date 1803 — Fluted-bezel four-digit reference | Rolexopedia | ||
|description=Reference guide to the Rolex Day-Date 1803, | |description=Reference guide to the Rolex Day-Date 1803: its production period, 1555 and 1556 movements, case, bracelet and documented dial variants. | ||
|keywords=Rolex 1803, Day-Date, | |keywords=Rolex 1803, Day-Date, caliber 1555, caliber 1556, Buckley dial, Stella dial | ||
|image=Ref 1803 hero.webp | |image=Ref 1803 hero.webp | ||
|image_alt=Rolex Day-Date 1803 | |image_alt=Yellow-gold Rolex Day-Date 1803 with fluted bezel and champagne dial | ||
|type=Article | |type=Article | ||
|og_type=article | |og_type=article | ||
|robots=index,follow,max-image-preview:large | |robots=index,follow,max-image-preview:large | ||
}} | }} | ||
<small>[[Reference:day-date|Day-Date]] | <small>[[Reference:day-date|Day-Date]] → '''1803'''</small> | ||
<div class="rp-lead"> | <div class="rp-lead"> | ||
[[File:Ref 1803 hero.webp|thumb|center|640px|alt=Rolex Day-Date 1803 | [[File:Ref 1803 hero.webp|thumb|center|640px|alt=Yellow-gold Rolex Day-Date 1803 with fluted bezel and champagne dial|A yellow-gold 1803 with a champagne baton dial.]] | ||
</div> | </div> | ||
The 1803 is the fluted-bezel | The 1803 is the fluted-bezel version of the four-digit Day-Date. It has a 36 mm gold case, acrylic crystal and the day and date displays for which the line is named. Published dates vary: Monochrome gives 1959–1976, while Fratello and Sotheby’s place its introduction around 1960 and the transition to the 18038 in 1978. | ||
Surviving 1803s also appear with printed Roman-numeral Buckley dials, lacquered finishes, Sigma and linen surfaces, and special-order details. Collector guides and catalogues document these configurations; Rolex has not published production totals by dial. | |||
==Core facts== | ==Core facts== | ||
| Line 37: | Line 34: | ||
| Day-Date | | Day-Date | ||
|- | |- | ||
| | | date range | ||
| | | Around 1960 to 1977–78; published sources vary | ||
|- | |- | ||
| case | | case | ||
| | | 36 mm, 18 ct gold; yellow, white and pink-gold examples are documented | ||
|- | |- | ||
| crystal | | bezel and crystal | ||
| acrylic | | Fluted bezel; acrylic crystal | ||
|- | |- | ||
| | | movement | ||
| | | Calibers 1555 and 1556; neither has quickset | ||
|- | |- | ||
| bracelet | | bracelet | ||
| President bracelet; | | President bracelet; clasp styles vary by period and example | ||
|- | |- | ||
| successor | | successor | ||
| 18038 | | 18038, introduced in 1978 | ||
|} | |} | ||
==Where it sits in the line== | ==Where it sits in the line== | ||
The 1803 | The 1803 belongs to the 1800-series Day-Date family. The 1802 has a smooth bezel, the 1804 a gem-set bezel, and the 1807 a bark finish. Fratello identifies the 1803 as the last Day-Date with a pie-pan dial; the 18038 that followed has a flatter dial and sapphire crystal. | ||
==Production outline== | ==Production outline== | ||
The 1803 replaced the earlier four-digit Day-Date models around 1960. Its run ended as Rolex introduced the 18038 in 1978. The later reference brought a sapphire crystal and caliber 3055 with date quickset. The 1803 instead uses acrylic and requires the hands to pass midnight to advance the calendar. | |||
The | |||
The movement changed from caliber 1555 to 1556 around the middle of the 1960s. Fratello and Monochrome date the addition of hacking seconds to 1972. Check the movement itself to establish whether an individual watch has the feature. | |||
==Movement notes== | ==Movement notes== | ||
The | The 1555 is generally dated to the early part of the 1803 run and the 1556 to the later part. Published movement references give the 1555 18,000 beats per hour and 25 jewels, and the 1556 19,800 beats per hour and 26 jewels. Both are automatic day-date movements. The 1803 has no quickset function; the date and weekday advance as the hands pass midnight. | ||
Monochrome dates hacking seconds to 1972 within the 1556 run. That is a useful production guide, not a substitute for inspection: movements can be replaced or serviced, and sources do not establish a precise serial cutoff. | |||
==Dial map== | ==Dial map== | ||
===Baton and Roman-numeral dials=== | |||
Silver and champagne baton dials are common in surviving examples. The pie-pan edge slopes down toward the minute track; the 18038 that followed uses a flatter dial. Buckley is collector usage for a dial with large printed Roman numerals, usually on a light or gold-toned ground. Sotheby’s documents white and gold examples as well as less common black and blue versions. The name is associated with New York dealer John Buckley, not a Rolex model designation. | |||
=== | ===Wide-Boy and Underline examples=== | ||
Wide-Boy is a collector term for broad applied markers paired with matching hands. Christie’s catalogued a circa-1971 1803 with this dial. The lot confirms the configuration, but does not date its full production run. | |||
Craft & Tailored documents an underline on a 1963 1803. Collectors sometimes read the mark as evidence of a lume change, but the commonly cited Hodinkee discussion concerns Submariner dials and does not establish that interpretation for the 1803. | |||
===Lacquered dials=== | |||
Collectors often call brightly colored lacquer dials Stella. Phillips catalogued a coral example in 2017 and a yellow lacquer dial in 2015; Christie’s recorded an Oman-commissioned burgundy example circa 1974. Revolution discusses early Stella dials in both pie-pan and flat forms, with overlapping periods rather than a clean changeover. The surviving records do not provide a complete color list or factory total. | |||
Christie’s also describes a circa-1971 coral-red lacquer dial. Its sale-room notice corrects the lot’s initial 1805 attribution to ref. 1803 and reports Cal. 1555 in a 36 mm case. It adds one documented coral-red example. ([https://www.christies.com/en/lot/lot-5091515 Christie’s lot 5091515]) | |||
The term Stella is collector usage. A dial's color and nickname do not establish that it left the factory in that case. | |||
[[File:Ref 1803 coral stella phillips.webp|thumb|right|220px|A coral lacquer dial on a Phillips-catalogued 1803, Geneva Watch Auction FIVE, lot 18, 2017.]] | |||
===Linen and Sigma dials=== | |||
Sotheby’s catalogued a circa-1974 1803 with a linen-textured pie-pan dial and Sigma marks flanking the six-o’clock text. Fratello describes the pie-pan dial as the 1803’s defining dial shape; the Sotheby’s lot records the linen and Sigma combination on one watch. | |||
===Retailer signatures and Oman orders=== | |||
Sotheby's catalogued a 1973 yellow-gold 1803 retailed by Tiffany & Co., with both names on the dial. That is a retailer signature on a specific watch, not a separate Rolex reference. | |||
Christie's records two Oman-related 1803s with different details. A circa-1973 yellow-gold example carries a green Khanjar emblem and Arabic calendar discs. A circa-1974 watch retailed by Asprey has a burgundy lacquer dial, diamond numerals and Arabic day and date displays. These are distinct documented configurations; the Asprey watch shows why a retailer stamp or regional calendar should be described from the individual record rather than generalized to every Oman commission. | |||
Christie’s also catalogued a circa-1968 white-gold 1803 with a Tapisserie dial, Eastern Arabic numerals and Arabic day/date displays. The catalogue identifies that exact configuration; it does not establish a separate production family. | |||
Other unusual faces appear in individual records. Christie’s catalogued a circa-1970 1803 with a brushed slate-grey pie-pan dial and gold Arabic numerals on the outer minute track. The record supports that watch’s configuration; it does not make slate grey a standard dial family. | |||
== | ==Case, bezel, and crystal== | ||
The case measures 36 mm across and is made in gold. Published examples include yellow, white and pink gold; Christie’s lots document pink-gold 1803s from circa 1967 and 1971. The 1803 has a fluted bezel and acrylic crystal. Case condition and metal marks should be assessed on the individual watch; polished cases can lose definition at the lugs and bezel. | |||
The bezel distinguishes the standard 1803 from related four-digit versions such as the smooth-bezel 1802 and gem-set-bezel 1804. A bezel or dial swap can change the present configuration, so the reference number alone does not prove that every component left the factory together. | |||
== | ==Bracelet and clasp== | ||
Published 1803 examples appear on President bracelets; Phillips also catalogued a coral-dial 1803 on a Jubilee bracelet. These records describe individual watches, not a universal delivery specification. Record bracelet and end-link numbers, clasp marks and the watch serial separately. A clasp date dates the bracelet component, not the watch head; it cannot alone establish original delivery. | |||
==Notable provenance== | |||
The | Sotheby’s catalogued an 1803 associated with Egyptian president Gamal Abdel Nasser. The caseback is engraved with a reference to Anwar El Sadat and the date 26 September 1963. This is an unusually well-documented individual watch, not a production variant. | ||
==Auction record== | ==Auction record== | ||
Auction descriptions and prices below refer to the listed examples only. | |||
{| class="wikitable" | {| class="wikitable" | ||
| Line 212: | Line 127: | ||
! date | ! date | ||
! house / lot | ! house / lot | ||
! | ! catalogued example | ||
! result | ! result or estimate | ||
|- | |- | ||
| 6 Dec 2024 | | 6 Dec 2024 | ||
| [https://www.sothebys.com/en/buy/auction/2024/important-watches-2 | | [https://www.sothebys.com/en/buy/auction/2024/important-watches-2/reference-1803-day-date-a-yellow-gold-automatic Sotheby’s, Important Watches] | ||
| | | Nasser-associated yellow-gold 1803 with Arabic day and date discs; caseback engraving references Anwar El Sadat | ||
| USD 840,000 | | Sold for USD 840,000; estimate USD 30,000–60,000 | ||
|- | |- | ||
| 8 May 2015 | | 8 May 2015 | ||
| Phillips Glamorous Day-Date | | [https://www.phillips.com/detail/rolex/CH080115/6 Phillips, Glamorous Day-Date, lot 6] | ||
| | | Yellow-gold 1803 with a yellow lacquer dial | ||
| Estimate CHF | | Estimate CHF 35,000–70,000; sold for CHF 112,500 | ||
|- | |- | ||
| 8 May 2015 | | 8 May 2015 | ||
| Phillips Glamorous Day-Date | | [https://www.phillips.com/detail/rolex/CH080115/49 Phillips, Glamorous Day-Date, lot 49] | ||
| | | White-gold 1803 with left-side crown and brown dial; the catalogue calls the configuration possibly unique | ||
| Estimate CHF 50,000–100,000 | | Estimate CHF 50,000–100,000; sold for CHF 123,750 | ||
|- | |- | ||
| | | 13 May 2017 | ||
| | | [https://www.phillips.com/detail/rolex/CH080117/18 Phillips, Geneva Watch Auction FIVE, lot 18] | ||
| | | Circa-1972 yellow-gold 1803 with coral lacquer dial | ||
| CHF | | Sold for CHF 27,500 | ||
|- | |- | ||
| | | 29 May 2008 | ||
| | | [https://www.christies.com/en/lot/lot-5091515 Christie’s, Important Watches, Hong Kong, lot 2553] | ||
| Coral-red lacquer Day-Date, case 3204972, circa 1971; sale-room notice corrects the initial ref. 1805 attribution to 1803 | |||
| Estimate HKD 70,000–100,000; sold for HKD 87,500 | |||
| | |||
| | |||
|} | |} | ||
==Related references== | |||
* [[Reference:6611|Day-Date 6611]] | |||
* [[Reference:6612|Day-Date 6612]] | |||
* [[Reference:6612B|Day-Date 6612B]] | |||
* [[Reference:1802|Day-Date 1802]] | |||
* [[Reference:1804|Day-Date 1804]] | |||
* [[Reference:1807|Day-Date 1807]] | |||
* [[Reference:18038|Day-Date 18038]] | |||
See also the [[Reference:day-date|Day-Date family index]], [[Reference:Movements|movement reference]], [[Reference:Bracelets|bracelet and clasp guide]], and [[Reference:Serial-numbers|serial numbers by year]]. | |||
<gallery mode="packed" heights="180"> | |||
File:Ref 1803 hero.webp|Yellow-gold 1803 with champagne baton dial. | |||
File:Ref 1803 coral stella phillips.webp|Coral lacquer 1803 — Phillips Geneva Watch Auction FIVE, lot 18. | |||
</gallery> | |||
== Sources == | == Sources == | ||
* [https://www.fratellowatches.com/rolex-day-date-historical-overview-of-rolexs-flagship/ Fratello, “Rolex Day-Date – Historical Overview Of Rolex’s Flagship”] | |||
* [https://monochrome-watches.com/history-rolex-day-date-1956-present-president-watch-in-depth-review/ Monochrome, “The History of the Rolex Day-Date”] | |||
* [https://revolutionwatch.com/the-stella-revolution/ Revolution, “The Stella Revolution”] | |||
* [https:// | * [https://www.sothebys.com/en/articles/the-rolex-day-date-a-complete-collectors-guide Sotheby’s, “The Rolex Day-Date: A Complete Collector’s Guide”] | ||
* [https:// | * [https://www.hodinkee.com/articles/rolex-submariner-reference-points Hodinkee, “Reference Points: Understanding The Rolex Submariner”] | ||
* [https://www.craftandtailored.com/collections/timepiece-archive/products/1963-rolex-day-date-ref-1803-18k-yg-underline-dial Craft & Tailored, 1963 underline 1803 listing] | |||
* [https://www.phillips.com/detail/rolex/CH080115/6 Phillips, Glamorous Day-Date, lot 6, 2015] and [https://www.phillips.com/detail/rolex/CH080115/49 lot 49] | |||
* [https:// | * [https://www.phillips.com/detail/rolex/CH080117/18 Phillips, Geneva Watch Auction FIVE, lot 18, 13 May 2017] | ||
* [https://www.sothebys.com/en/buy/auction/2024/fine-watches-2/day-date-linen-pie-pan-sigma-dial-reference-1803 Sotheby's, linen pie-pan Sigma 1803] | |||
* [https://www.sothebys.com/ | * [https://www.sothebys.com/en/auctions/ecatalogue/2019/important-watches-n10082/lot.103.html Sotheby's, Tiffany-retail 1803, lot 103] | ||
* [https://www.christies.com/en/lot/lot-6067568 Christie's, Oman Khanjar 1803] | |||
* [https://www.christies.com/en/lot/lot-6378256 Christie's, pink-gold 1803 with Tapisserie dial] | |||
* [https://www.christies.com/en/lot/lot-6194142 Christie's, white-gold 1803 with Arabic Tapisserie dial] | |||
* [https://www.christies.com/en/lot/lot-6167004 Christie’s, slate-grey 1803 with gold Arabic minute numerals] | |||
* [https:// | * [https://www.christies.com/lot/lot-rolex-a-fine-and-very-rare-18k-5841902/ Christie's, Asprey-retail 1803 with burgundy lacquer dial] | ||
* [https:// | * [https://watchbase.com/rolex/caliber/1556 WatchBase, caliber 1556 specifications] | ||
* [https://www.christies.com/en/lot/lot-6202872 Christie’s, reference 1803 with Wide-Boy dial, circa 1971] | |||
* [https:// | * [https://www.christies.com/en/lot/lot-5091515 Christie’s, circa-1971 coral-red dial; sale-room notice corrects the initial 1805 attribution to 1803] | ||
* [https://www.sothebys.com/en/buy/auction/2024/important-watches-2/reference-1803-day-date-a-yellow-gold-automatic Sotheby’s, Nasser-associated 1803, 6 December 2024] | |||
* [https:// | |||
* [https:// | |||
* [https:// | |||
* [https:// | |||
* [https://www. | |||
* [https://www. | |||
* [https://www. | |||
* [https://www. | |||
* [https://watchbase.com/rolex/caliber/1556 | |||
* [https://www. | |||
* [https://www. | |||
* [https://www. | |||
[[Category:Day-Date]] | [[Category:Day-Date]] | ||
[[Category:References]] | [[Category:References]] | ||
Latest revision as of 08:02, 11 October 2026
Day-Date → 1803
The 1803 is the fluted-bezel version of the four-digit Day-Date. It has a 36 mm gold case, acrylic crystal and the day and date displays for which the line is named. Published dates vary: Monochrome gives 1959–1976, while Fratello and Sotheby’s place its introduction around 1960 and the transition to the 18038 in 1978.
Surviving 1803s also appear with printed Roman-numeral Buckley dials, lacquered finishes, Sigma and linen surfaces, and special-order details. Collector guides and catalogues document these configurations; Rolex has not published production totals by dial.
Core facts
| detail | value |
|---|---|
| reference | 1803 |
| family | Day-Date |
| date range | Around 1960 to 1977–78; published sources vary |
| case | 36 mm, 18 ct gold; yellow, white and pink-gold examples are documented |
| bezel and crystal | Fluted bezel; acrylic crystal |
| movement | Calibers 1555 and 1556; neither has quickset |
| bracelet | President bracelet; clasp styles vary by period and example |
| successor | 18038, introduced in 1978 |
Where it sits in the line
The 1803 belongs to the 1800-series Day-Date family. The 1802 has a smooth bezel, the 1804 a gem-set bezel, and the 1807 a bark finish. Fratello identifies the 1803 as the last Day-Date with a pie-pan dial; the 18038 that followed has a flatter dial and sapphire crystal.
Production outline
The 1803 replaced the earlier four-digit Day-Date models around 1960. Its run ended as Rolex introduced the 18038 in 1978. The later reference brought a sapphire crystal and caliber 3055 with date quickset. The 1803 instead uses acrylic and requires the hands to pass midnight to advance the calendar.
The movement changed from caliber 1555 to 1556 around the middle of the 1960s. Fratello and Monochrome date the addition of hacking seconds to 1972. Check the movement itself to establish whether an individual watch has the feature.
Movement notes
The 1555 is generally dated to the early part of the 1803 run and the 1556 to the later part. Published movement references give the 1555 18,000 beats per hour and 25 jewels, and the 1556 19,800 beats per hour and 26 jewels. Both are automatic day-date movements. The 1803 has no quickset function; the date and weekday advance as the hands pass midnight.
Monochrome dates hacking seconds to 1972 within the 1556 run. That is a useful production guide, not a substitute for inspection: movements can be replaced or serviced, and sources do not establish a precise serial cutoff.
Dial map
Baton and Roman-numeral dials
Silver and champagne baton dials are common in surviving examples. The pie-pan edge slopes down toward the minute track; the 18038 that followed uses a flatter dial. Buckley is collector usage for a dial with large printed Roman numerals, usually on a light or gold-toned ground. Sotheby’s documents white and gold examples as well as less common black and blue versions. The name is associated with New York dealer John Buckley, not a Rolex model designation.
Wide-Boy and Underline examples
Wide-Boy is a collector term for broad applied markers paired with matching hands. Christie’s catalogued a circa-1971 1803 with this dial. The lot confirms the configuration, but does not date its full production run.
Craft & Tailored documents an underline on a 1963 1803. Collectors sometimes read the mark as evidence of a lume change, but the commonly cited Hodinkee discussion concerns Submariner dials and does not establish that interpretation for the 1803.
Lacquered dials
Collectors often call brightly colored lacquer dials Stella. Phillips catalogued a coral example in 2017 and a yellow lacquer dial in 2015; Christie’s recorded an Oman-commissioned burgundy example circa 1974. Revolution discusses early Stella dials in both pie-pan and flat forms, with overlapping periods rather than a clean changeover. The surviving records do not provide a complete color list or factory total.
Christie’s also describes a circa-1971 coral-red lacquer dial. Its sale-room notice corrects the lot’s initial 1805 attribution to ref. 1803 and reports Cal. 1555 in a 36 mm case. It adds one documented coral-red example. (Christie’s lot 5091515)
The term Stella is collector usage. A dial's color and nickname do not establish that it left the factory in that case.

Linen and Sigma dials
Sotheby’s catalogued a circa-1974 1803 with a linen-textured pie-pan dial and Sigma marks flanking the six-o’clock text. Fratello describes the pie-pan dial as the 1803’s defining dial shape; the Sotheby’s lot records the linen and Sigma combination on one watch.
Retailer signatures and Oman orders
Sotheby's catalogued a 1973 yellow-gold 1803 retailed by Tiffany & Co., with both names on the dial. That is a retailer signature on a specific watch, not a separate Rolex reference.
Christie's records two Oman-related 1803s with different details. A circa-1973 yellow-gold example carries a green Khanjar emblem and Arabic calendar discs. A circa-1974 watch retailed by Asprey has a burgundy lacquer dial, diamond numerals and Arabic day and date displays. These are distinct documented configurations; the Asprey watch shows why a retailer stamp or regional calendar should be described from the individual record rather than generalized to every Oman commission.
Christie’s also catalogued a circa-1968 white-gold 1803 with a Tapisserie dial, Eastern Arabic numerals and Arabic day/date displays. The catalogue identifies that exact configuration; it does not establish a separate production family.
Other unusual faces appear in individual records. Christie’s catalogued a circa-1970 1803 with a brushed slate-grey pie-pan dial and gold Arabic numerals on the outer minute track. The record supports that watch’s configuration; it does not make slate grey a standard dial family.
Case, bezel, and crystal
The case measures 36 mm across and is made in gold. Published examples include yellow, white and pink gold; Christie’s lots document pink-gold 1803s from circa 1967 and 1971. The 1803 has a fluted bezel and acrylic crystal. Case condition and metal marks should be assessed on the individual watch; polished cases can lose definition at the lugs and bezel.
The bezel distinguishes the standard 1803 from related four-digit versions such as the smooth-bezel 1802 and gem-set-bezel 1804. A bezel or dial swap can change the present configuration, so the reference number alone does not prove that every component left the factory together.
Bracelet and clasp
Published 1803 examples appear on President bracelets; Phillips also catalogued a coral-dial 1803 on a Jubilee bracelet. These records describe individual watches, not a universal delivery specification. Record bracelet and end-link numbers, clasp marks and the watch serial separately. A clasp date dates the bracelet component, not the watch head; it cannot alone establish original delivery.
Notable provenance
Sotheby’s catalogued an 1803 associated with Egyptian president Gamal Abdel Nasser. The caseback is engraved with a reference to Anwar El Sadat and the date 26 September 1963. This is an unusually well-documented individual watch, not a production variant.
Auction record
Auction descriptions and prices below refer to the listed examples only.
| date | house / lot | catalogued example | result or estimate |
|---|---|---|---|
| 6 Dec 2024 | Sotheby’s, Important Watches | Nasser-associated yellow-gold 1803 with Arabic day and date discs; caseback engraving references Anwar El Sadat | Sold for USD 840,000; estimate USD 30,000–60,000 |
| 8 May 2015 | Phillips, Glamorous Day-Date, lot 6 | Yellow-gold 1803 with a yellow lacquer dial | Estimate CHF 35,000–70,000; sold for CHF 112,500 |
| 8 May 2015 | Phillips, Glamorous Day-Date, lot 49 | White-gold 1803 with left-side crown and brown dial; the catalogue calls the configuration possibly unique | Estimate CHF 50,000–100,000; sold for CHF 123,750 |
| 13 May 2017 | Phillips, Geneva Watch Auction FIVE, lot 18 | Circa-1972 yellow-gold 1803 with coral lacquer dial | Sold for CHF 27,500 |
| 29 May 2008 | Christie’s, Important Watches, Hong Kong, lot 2553 | Coral-red lacquer Day-Date, case 3204972, circa 1971; sale-room notice corrects the initial ref. 1805 attribution to 1803 | Estimate HKD 70,000–100,000; sold for HKD 87,500 |
Related references
See also the Day-Date family index, movement reference, bracelet and clasp guide, and serial numbers by year.
-
Yellow-gold 1803 with champagne baton dial.
-
Coral lacquer 1803 — Phillips Geneva Watch Auction FIVE, lot 18.
Sources
- Fratello, “Rolex Day-Date – Historical Overview Of Rolex’s Flagship”
- Monochrome, “The History of the Rolex Day-Date”
- Revolution, “The Stella Revolution”
- Sotheby’s, “The Rolex Day-Date: A Complete Collector’s Guide”
- Hodinkee, “Reference Points: Understanding The Rolex Submariner”
- Craft & Tailored, 1963 underline 1803 listing
- Phillips, Glamorous Day-Date, lot 6, 2015 and lot 49
- Phillips, Geneva Watch Auction FIVE, lot 18, 13 May 2017
- Sotheby's, linen pie-pan Sigma 1803
- Sotheby's, Tiffany-retail 1803, lot 103
- Christie's, Oman Khanjar 1803
- Christie's, pink-gold 1803 with Tapisserie dial
- Christie's, white-gold 1803 with Arabic Tapisserie dial
- Christie’s, slate-grey 1803 with gold Arabic minute numerals
- Christie's, Asprey-retail 1803 with burgundy lacquer dial
- WatchBase, caliber 1556 specifications
- Christie’s, reference 1803 with Wide-Boy dial, circa 1971
- Christie’s, circa-1971 coral-red dial; sale-room notice corrects the initial 1805 attribution to 1803
- Sotheby’s, Nasser-associated 1803, 6 December 2024
