|Headquarters||Plan-les-Ouates, Canton of Geneva, Switzerland
|Products||Mechanical watches, clocks|
|Revenue||US$1.49 billion (2019)|
Patek Philippe SA is a Swiss luxury watch and clock manufacturer, located in the Canton of Geneva and the Vallée de Joux. Established in 1839, it is named after two of its founders, Antoni Patek and Adrien Philippe. Since 1932, the company has been owned by the Stern family in Switzerland and remains the last family-owned independent watch manufacturer in Geneva. Patek Philippe is one of the oldest watch manufacturers in the world with an uninterrupted watchmaking history since its founding. It designs and manufactures timepieces as well as movements, including some of the most complicated mechanical watches. The company maintains over 400 retail locations globally and over a dozen distribution centers across Asia, Europe, North America, and Oceania. In 2001, it opened the Patek Philippe Museum in Geneva.
Patek Philippe is widely considered to be one of the most prestigious watch manufacturers in the world. As of December 2020, among the world's top ten most expensive watches ever sold at auctions, eight are Patek Philippe watches. In particular, Patek Philippe Grandmaster Chime Ref. 6300A-010 currently holds the title of the most expensive watch (and wristwatch) ever sold at auction (US$31.19 million/31 million CHF), while Patek Philippe Henry Graves Supercomplication, the world's most complicated mechanical watch until 1989, currently holds the title of the most expensive pocket watch ever sold at auction (US$24 million/23,237,000 CHF).
The company traces its origins to the mid-19th century, when Polish watchmaker Antoni Patek along with his Czech-born Polish partner Franciszek Czapek formed Patek, Czapek & Cie in Geneva on 1 May 1839 and started manufacturing pocket watches. The two eventually separated due to disagreements and the company was liquidated on 18 April 1845. On 1 May 1845, Czapek founded Czapek & Cie with a new partner, Juliusz Gruzewski. Subsequently, Patek was joined by French watchmaker Adrien Philippe, the inventor of the keyless winding mechanism (although this has been discovered previously by Abraham Louis Breguet but not patented by him), and continued the watchmaking business with a new company, Patek & Cie, beginning on 15 May 1845.
On 1 January 1851, the company's name was officially changed to Patek, Philippe & Cie. In the same year, Queen Victoria of the United Kingdom acquired a keyless pendant watch at the Great Exhibition in London. The watch was embellished with rose-cut diamonds set in the pattern of a bouquet of flowers. The Queen had another exclusive Patek Philippe timepiece, to be worn pinned to clothing. This watch was suspended from a diamond and enamel brooch. In 1868, Patek Philippe created the first Swiss wristwatch for Countess Koscowicz of Hungary.
In March 1877, Antoni Patek died at the age of 65, but his only son, Léon Mecyslas Vincent, did not join the business. As a result, Joseph Antoine Bénassy-Philippe, one of Adrien Philippe's sons-in-law, succeeded Antoni Patek's position. In 1887, the cross of one of the 4 Military Orders of Spain, the Order of Calatrava, became the registered company logo of Patek Philippe as a sympathetic allusion to the still extant order of Catholic knights that fought the Muslims in the Crusades. In 1891, the 76-year-old Adrien Philippe handed over his position in the business to his youngest son Joseph Emile Philippe, together with Francois Antoine Conty. Adrien Philippe died in January 1894.
1901 saw the transformation of Patek Philippe into a joint-stock company, Ancienne Manufacture d'horlogerie Patek, Philippe & Cie, Société Anonyme, initiated by J. A. Bénassy-Philippe and Joseph E. Philippe. Still being run as a family business, Patek Philippe then had seven shareholders, five of whom formed the board of directors with J. A. Bénassy-Philippe being the chairman. Joseph E. Philippe's son later joined the company, and he was the last offspring of the founders in the business. In 1915, Albert Einstein ordered a gold pocket watch from Patek Philippe; in that year, he completed his Theory of General Relativity.
The Swiss Stern family has owned Patek Philippe since 1932 when Charles Stern and Jean Stern acquired the company during the Great Depression. The Stern brothers' company, Fabrique de Cadrans Sterns Frères, had been a business partner of Patek Philippe as its supplier of watch dials. In 1935, Patek Philippe was brought to American markets by New York-based Henri Stern Watch Agency, where it was sold as a sister brand alongside Universal Genève.
In 1958, Henri Stern, the son of Charles Stern, became the president of Patek Philippe. Alan Banbery, who previously designed Universal's "Compax" movements and worked as a horologist for London's Garrard & Co, would take on the position of Director of Sales in 1965 and later authored official reference books on vintage Patek Philippe pocket watches and chronographs.
In 1993, Philippe Stern, the son of Henry Stern, became the president of the company. He initiated the publication of the twice-a-year Patek Philippe Magazine in 1996, which is reserved for the watch owners and has received contributions from various prominent writers including Nobel Laureates Gao Xingjian and José Saramago. And in 2009, Philippe Stern's son, Thierry Stern, took over the reins from his father. In 2010, the company produced 40,000 timepieces and, according to Thierry Stern, it produced 58,000 pieces in 2017. In 2018, the number went up to 62,000, and in order to maintain quality and exclusivity, Patek Philippe would only slowly increase the number of timepieces produced each year (by 1-3 percent per year) but with a ceiling. Currently, the company is an active member of the Federation of the Swiss Watch Industry FH.
Since 2000s, Patek Philippe timepieces have repeatedly fetched high prices in auctions worldwide. As of 2018, among the world's top ten most expensive watches ever sold at auctions, seven are Patek Philippe watches. Among the top 58 most expensive watches sold at auction (over 2 million US dollars), 46 are Patek Philippe watches. A small part of the demand for auction pieces is driven by Patek Philippe themselves, as they are purchasing in the auction market to add to the collection of the Patek Philippe Museum in Geneva.
Motto and slogan
One of Patek Philippe's company slogans is "You never actually own a Patek Philippe. You merely look after it for the next generation." The slogan was introduced when the company launched its "Generations" campaign in 1996.
Patek Philippe manufactures its own watch components. Like other Swiss manufacturers, the company produces mostly mechanical movements with automatic or manual winding mechanism, but has also been producing quartz watches. In fact, Patek Philippe was one of the twenty Swiss watch companies that founded the Centre Electronique Horloger and collaboratively developed the first Swiss quartz movements, such as the Beta 21 movement (1969) which was used by several manufacturers in their watches. In 1950s, the company even produced a prototype for a mechanical digital wristwatch, Ref. 3414.
Patek Philippe popularized complications such as perpetual calendar, split-seconds hand, chronograph, and minute repeater in mechanical watches. In 2009, the company announced that all of its future mechanical timepieces would be imprinted with the Patek Philippe Seal which requires a precision of -3/+2 seconds per day for diameters no less than 20 mm and -5/+4 seconds per day for diameters less than 20 mm, surpassing the highest industry standard of watch manufacturing and thus abandoning the Geneva Seal.
In December 2018, World Wide Fund for Nature (WWF) released a report assigning environmental ratings for 15 major watch manufacturers and jewelers in Switzerland. Patek Philippe was given the lowest environmental rating as "Latecomers/Non-transparent", suggesting the manufacturer has taken few actions addressing the impact of its manufacturing activities on the environment and climate change.
Notable inventions and patents
- In 1845, patented keyless winding and hand-setting system, which received a bronze medal at the 1844 Industrial Exposition in Paris.
- In 1868, created the first Swiss wristwatch.
- In 1881, patented its precision regulator.
- In 1889, patented perpetual calendar mechanism for pocket watches.
- In 1902, patented double chronograph.
- In 1916, produced the world's first lady’s wristwatch with complication (No. 174 603, a five-minute repeater).
- In 1923, launched the world's first split-second chronograph wristwatch (No. 124 8244).
- In 1925, created the world's first perpetual calendar wristwatch (No. 97 975), with a compact movement for pendant watches created in 1898.
- In 1933, created the Henry Graves Supercomplication, the most complicated mechanical watch in the world (24 complications) until 1989.
- In 1949, patented the Gyromax balance.
- In 1956, created the world's first all-electronic clock which, in 1958, received the "Award for Miniaturization” in New York.
- In 1962, a tourbillon movement achieves the world's still-unbeaten timekeeping precision record for mechanical watches at Geneva Observatory.
- In 1986, patented the secular perpetual calendar with retrograde date indication.
- In 1989, created the Calibre 89, the most complicated mechanical watch in the world (33 complications) until 2015.
- In 1996, patented annual calendar mechanism and introduced the first annual calendar model Ref. 5035.
- In 2003/05, launched the annual calendar Ref. 5250, being the world's first watch with silicon-based (the Silinvar alloy) escapement wheel.
- In 2006, introduced the silicon-based Spiromax balance spring.
- In 2008, introduced the Pulsomax silicon-based escapement.
- In 2011, introduced the Oscillomax ensemble, combining the Spiromax balance spring, the Pulsomax escapement, and the GyromaxSi balance.
- In 2014, created the Grandmaster Chime Ref. 5175, one of the world's most complicated wristwatches (20 complications).
Most expensive pieces
- On November 28, 2012, the Patek Philippe Star Calibre 2000 Ref. 990/1 was sold at Christie's in Hong Kong for a final price of 3.28 million US dollars (HKD 25,300,000), becoming the most expensive timepiece ever auctioned in Asia. The timepiece boasts 21 complications, including Westminster Chimes, minute repeating, lunar orbit and so on, and was made in 2008.
- On November 11, 2014, the Henry Graves Supercomplication was sold at Sotheby's Geneva Auction for a record-breaking US$23.98 million (CHF 23,237,000), becoming the most expensive watch ever sold at auction and held the title until November 9, 2019. The Supercomplication was made in 1933 for the prominent banker Henry Graves Jr. The ultra-complicated pocket watch (having 24 complications) was the result of Graves' friendly horological competition with James Ward Packard. After Graves' death, the watch was held by his daughter, and then by his grandson until 1969, when it was sold to Seth G. Atwood who kept the watch in his renowned "Time Museum" in Rockford, Illinois until 1999. The watch was auctioned for the first time at Sotheby's in December 1999 for a record-breaking US$11 million to Sheikh Saud Bin Mohammed Bin Ali Al-Thani of the Qatari royal family.
- On November 12, 2016, a Patek Philippe Ref. 1518 in steel took the title as the most expensive wristwatch ever sold at auction (until October 2017). Sold through Phillips' Geneva auction house, the watch fetched a final price of US$11.14 million (CHF 11,002,000). This was the first time that a steel-case Ref. 1518 (only four were made in steel) went for auction; in fact, this piece was the first of the four steel Ref.1518 manufactured, which features a chronograph and perpetual calendar.
- On November 9, 2019, Patek Philippe Grandmaster Chime Ref. 6300A-010 became the most expensive watch ever sold at auction, fetching US$31 million (CHF 31,000,000) in Christie's Geneva auction.
- On December 11, 2021, Patek Philippe Nautilus ref. 5711 with Tiffany blue dial sets a new world record for any wristwatch sold online, realizing US$6.5 million in Phillips New York auction.
In 1932, Patek Philippe launched the first Calatrava model Ref. 96, which was designed by English horologist David Penney who was influenced by the Bauhaus art movement in Germany. Originally, the Stern brothers, soon after they acquired Patek Philippe in 1932, introduced the Calatrava to help the company pass through the Great Depression smoothly.
The original Calatrava Ref. 96 was in production for more than 40 years, and its successor models include Ref. 2526, Ref. 3520, Ref. 5196 and so on. Known for its simple and elegant design, the Calatrava wristwatch has been a flagship model of Patek Philippe since its introduction. Notably, the Calatrava Cross has been company's logo since 1887.
World Time wristwatch
Patek Philippe World Time (Heures Universelles) collection was introduced in 1939, with Ref.1415 being the first model. The "World Time" complication is able to show the time for all 24 time zones on the same watch and was invented by Swiss watchmaker Louis Cottier in 1931. Cottier's invention attracted several watchmaking companies, while Patek Philippe was the first company to introduce a series of World Time wristwatches after forging a partnership with Mr. Cottier. The successors to Ref. 1415 include Ref. 2523, Ref. 5230, Ref. 5531 (with minute repeater), and so on.
As of 2018, Patek Philippe World Time collection (Ref. 1415, Ref. 2523) holds 6 spots among the 58 world's most expensive watches sold at auction (over 2 million US dollars), with the world record being 4.027 million US dollars (6,603,500 CHF) made at Antiquorum's Geneva auction on April 13, 2002.
In 1976, Patek Philippe introduced the Nautilus collection after deciding it was time to produce an exclusive sport watch with finishes of the highest quality. The first model was Ref. 3700 and was made of steel. It was designed by Swiss watchmaker Gérald Genta, who previously designed the Royal Oak collection for Audemars Piguet, and was released by Patek Philippe during the quartz crisis in the hope that it would help re-attract people's attention to high-end Swiss mechanical watches.
The Nautilus collection played a key role in Patek Philippe's overall marketing strategy as it had to refresh the brand image while perpetuating tradition. The target was represented by dynamic business managers of the new generations. The Nautilus wristwatch has become one of the most popular collections from Patek Philippe, and the Ref. 5711 & 5712 models, which the company introduced in 2006 to celebrate the 30th anniversary of the collection, are among the most popular models.
Perpetual calendar chronograph
Patek Philippe perpetual calendar chronograph was introduced in 1941, with Ref. 1518 being the first model. On November 12, 2016, a Ref. 1518 in steel became the most expensive wristwatch ever sold at auction (until October 2017), fetching a record-breaking US$11.14 million (11,002,000 CHF) in Geneva (through Phillips' auction house).
As the successor, Ref. 2499 is widely considered to be one of the greatest watch models in the world. Historically, only 349 pieces of Ref. 2499 were made from 1950 to 1985 - around 9 pieces each year. Over the course of 35 years, four series of Ref. 2499 were introduced, exerting a strong influence on the watch designs of many other renowned watchmakers. As of June 2019, Ref. 2499 holds eleven spots among the 59 world's most expensive watches sold at auction (over 2 million US dollars) and at least 18 pieces of Ref. 2499 have been auctioned for more than 1.5 million US dollars, with the world record being 3.880 million US dollars (3,915,000 CHF) made at Sotheby's Geneva auction on November 13, 2018. The successors to Ref. 2499 include, in chronological order, Ref. 3970, Ref. 5970 and Ref. 5270.
Sky Moon Tourbillon
Patek Philippe Sky Moon Tourbillon wristwatch was introduced in 2001, with Ref. 5002 being the first model. The wristwatch has two dials and contains 12 complications including tourbillon, minute repeater, sky chart, and moon phase & orbit. In 2013, the company introduced the second model of Sky Moon Tourbillon, Ref. 6002, also with 12 complications. The new model took 7 years of research and development, while the engraving on each piece alone took more than 100 hours.
Sky Moon Tourbillon was the most complicated wristwatch from Patek Philippe until 2014. It is estimated that only 3 - 5 pieces are made each year, and the price for each piece is over US$1.2 million. However, every purchase of the piece requires an application from the buyer and has to be approved by Patek Philippe President Thierry Stern. On October 2, 2018, a Sky Moon Tourbillon 6002G was auctioned by Poly Auction in Hong Kong, fetching US$2.707 million (HKD 21,240,000), making it one of the most expensive watches ever sold in auction.
150th anniversary edition
In 1989, Patek Philippe created Calibre 89, then the most complicated mechanical watch ever made, for its 150th anniversary. Calibre 89 holds 33 complications, including the date of Easter, time of sunrise, equation of time, sidereal time, and many other indicators. 1,728 unique parts allow sidereal time, a 2,800 star chart, and more. In addition, Calibre 89 is able to add a day to February for leap years while leaving out the extra day for every 100 year interval.
Only four pieces of Calibre 89 were ever manufactured by Patek Philippe, with one in white gold, one in yellow gold, one in rose gold, and one in platinum. The yellow-gold and the white-gold Calibre 89 were sold at auctions by Antiquorum in 2009 and 2004, respectively, and both watches currently rank among the top ten most expensive watches ever sold at auction, with final prices over 5 million US dollars.
175th anniversary edition
In 2014, Patek Philippe introduced the Grandmaster Chime Ref. 5175, the most complicated wristwatch ever built by the manufacturer (with 20 complications, but no tourbillon), to celebrate its 175th anniversary. Only seven pieces of Ref. 5175 were created, with one permanently residing in the Patek Philippe Museum in Geneva. The sale price for each of the other six pieces was 2.5 million CHF (2.6 million US dollars).
In 2016, Patek Philippe introduced the Grandmaster Chime Ref. 6300, succeeding the Grandmaster Chime Ref. 5175. Ref. 6300 also has 20 complications, including grande sonnerie, minute repeater, and alarm with time strike (but without tourbillon), with the sale price over 2.2 million US dollars. The purchase of each piece requires an application from the buyer and has to be approved by Patek Philippe President Thierry Stern.
- Boule de Genève
- List of watch manufacturers
- Manufacture d'horlogerie
- Patek Philippe Henry Graves Supercomplication
- Patek Philippe Calibre 89
- "Swiss watchmakers say slowing growth in China won't hurt sales this..." Reuters. 2019-03-21. Retrieved 2019-03-23.
- "Turnover of the leading luxury watch brands worldwide in 2019 (in million U.S. dollars)*". statista.com. 2019-03-21. Retrieved 2019-03-23.
- "Patek Philippe | Company | History". Patek Philippe SA. Retrieved 2018-11-26.
- "Philippe Stern". www.bloomberg.com. Retrieved 2018-12-12.
- "The Patek Philippe Way of Watchmaking". www.rudells.com. Retrieved 2022-02-24.
- "175 years of Patek Philippe: A big story in three chapters". www.pragnell.co.uk. Retrieved 2018-12-11.
- "Patek Philippe | Company | The Manufacture". Patek Philippe SA. Retrieved 2018-12-11.
- "Patek Philippe | News | Celebrating our 175th Anniversary". Patek Philippe SA. Retrieved 2018-12-11.
- "Patek Philippe SA | Authorized Retailers". www.patek.com. Retrieved 2018-05-07.
- "Patek Philippe SA | Distributors". www.patek.com. Retrieved 2018-05-07.
- "Patek Philippe | Visit the Patek Philippe Museum in Geneva". Patek Philippe SA. Retrieved 2018-12-21.
- Michael Korda (1 January 2004), Marking Time: Collecting Watches and Thinking about Time, Barnes & Noble Publishing, pp. 71–, ISBN 978-0-7607-3576-3
- "5 reasons collectors love Patek Philippe". Christie's. Retrieved 2018-12-11.
- Dool, Steve (2017-07-18). "Why collectors covet Patek Philippe timepieces". CNN Style. Retrieved 2018-12-11.
- Clymer, Benjamin. "Patek Philippe in America: Unparalleled Luxury That Captures Hearts—And Wrists". Forbes. Archived from the original on May 9, 2013. Retrieved 2018-12-11.
- "Swiss Pocket Watch Sells for Record $24 Million". Time. Retrieved 2018-11-23.
- Reddinger, Paige (2019-11-09). "This $31 Million Patek Philippe Just Became the Most Expensive Watch in the World". Robb Report. Retrieved 2019-11-11.
- "Patek Philippe SA | History (1839–1877)". www.patek.com. Retrieved 2018-05-07.
- "Patek Philippe Watches (Volume I) - Patek Philippe Museum" (PDF). Patek Philippe.
- "Patek Philippe History". Official Watches. Archived from the original on 2019-01-13.
- "The History". Czapek. Retrieved 2018-12-22.
- Cf. Patek Philippe website official history timeline
- Timepieces for Royalty – 1850-1910 by Patek Philippe, Geneva : Patek Philippe Museum, 2005.
- "175 years of Patek Philippe: A big story in three chapters". www.pragnell.co.uk. Retrieved 2019-01-07.
- "Patek Philippe". www.hautehorlogerie.org. Retrieved 2019-01-05.
- "Patek Philippe". www.thehourglass.org. Retrieved 2023-01-13.
- "Patek Phillipe - A Brief History". www.brittons-watches.co.uk. Retrieved 2019-01-07.
- "The History of the Patek Philippe Brand | The Loupe, TrueFacet". 2015-09-29. Retrieved 2019-01-07.
- Friedrich, Carina (2015-11-10). "Patek Philippe, Pocket Watch to Wristwatch: A History of the Patek Philippe Watch Company". WatchTime - USA's No.1 Watch Magazine. Retrieved 2019-01-27.
- "General Relativity". Institute for Advanced Study. Archived from the original on 2019-01-28. Retrieved 2019-01-27.
- Perman, Stacy (2013). A Grand Complication: The Race to Build the World's Most Legendary Watch. Simon & Schuster. p. 220. ISBN 978-1439190081.
- "Patek Philippe | Company | History". Patek Philippe SA. Retrieved 2018-12-12.
- "How Alan Banbery shaped the modern history of Patek Philippe". A Collected Man. Retrieved 2021-04-15.
- "Who Is Alan Banberry?". Montres Publiques. Retrieved 2021-04-15.
- "The "Generations" ad campaign is twenty years old". Federation of the Swiss watch industry FH. Retrieved 2019-02-25.
- "Thierry Stern Takes Over the Presidency of Patek Philippe". Europa Star. October 2009. Retrieved 2022-05-22.
- KPMG, "Standing the Test of Time", pp.16-18, in Consumer Currents, Issue 5, 2008, KPMG International
- "Thierry Stern: "You have to innovate, otherwise you die"". journal.hautehorlogerie.org. Retrieved 2018-12-30.
- "Swiss watchmaker Patek Philippe says Chinese demand still rising". Reuters. 2018-10-18. Retrieved 2018-12-11.
- "Our brands". Federation of the Swiss watch industry.
- Clerizo, Michael, "Watch Auctions: Time-Honored: With their mystique, brands like Patek Philippe can command hundreds of thousands of dollars at watch auctions", The Wall Street Journal, April 29, 2010
- Frank, Robert, "All That Glitters May Not Be Gold", The Wall Street Journal, October 8, 2007
- Patek Philippe SA. "Patek Philippe SA - Welcome to Our Official Website". Retrieved 24 May 2016.
- Pulvirent, Stephen (December 27, 2016). "The Untold Story Of Watchmaking's Most Iconic Advertising Campaign: The 'Generations' Campaign Of Patek Philippe". Hodinkee. Retrieved 2019-01-23.
- "Introducing The Patek Philippe Ref. 5396G, Made Exclusively For Tiffany & Co". Hodinkee. November 15, 2012. Retrieved 2019-01-30.
- "Patek Philippe Watches | Tiffany & Co". www.tiffany.com. Retrieved 2019-01-30.
- "Patek Philippe crafts its future". Fortune. Retrieved 2018-12-11.
- "Patek Philippe | Watch Movements & Calibers". Patek Philippe SA. Retrieved 2019-01-11.
- Barrett, Cara (June 24, 2015). "Collecting The First Swiss Quartz Movement: 5 Beta-21 Watches To Look For". Hodinkee. Retrieved 2019-01-11.
- "Patek Philippe - A modern version of Ref. 3414, called "Cobra" ..." Watchprosite. 2014-01-15. Retrieved 2019-01-11.
- "The Perpetual Calendar Complication: A History". Crown & Caliber Blog. 2018-06-21. Archived from the original on 2019-04-02. Retrieved 2018-12-13.
- Zhou, PH (July 14, 2016). "In-Depth: A Detailed Survey Of The Split-Seconds Chronograph And Its Cousins". Hodinkee. Retrieved 2018-12-13.
- "Insider: Patek Philippe Minute Repeaters. History, Explanation and 10 Facts You Need to Know About Them". Watch Collecting Lifestyle. Retrieved 2018-12-13.
- "Patek Philippe creates its own Seal – FHH Journal". journal.hautehorlogerie.org. Retrieved 2019-01-12.
- "Patek Philippe | Company | The Manufacture". Patek Philippe SA. Retrieved 2019-01-12.
- "The New Standard Of Quality - The Patek Philippe Seal". Federation of the Swiss watch industry FH. Retrieved 2019-02-05.
- "Environmental rating and industry report 2018" (PDF). World Wide Fund for Nature. Retrieved 2019-01-19.
- "Swiss luxury watches fail to meet environmental standards". SWI swissinfo.ch. Retrieved 2019-01-19.
- Liu, Ming (2016-03-17). "At Patek Philippe, 'the D.N.A. Comes In'". The New York Times. ISSN 0362-4331. Retrieved 2019-02-21.
- "Patek Philippe | Company | History (1878-1931)". Patek Philippe SA. Retrieved 2019-01-11.
- "The Perpetual Calendar Complication: A History". Crown & Caliber Blog. 2018-06-21. Archived from the original on 2019-04-02. Retrieved 2019-02-20.
- "Patek Philippe | Company | History (1932-1949)". Patek Philippe SA. Retrieved 2019-01-11.
- "Experience: Patek Philippe Celebrates its 175th Anniversary. A Chronological Journey of The Manufacture's Rich History". Watch Collecting Lifestyle. Retrieved 2019-01-11.
- "Patek Philippe | Company | History (1950-1988)". Patek Philippe SA. Retrieved 2019-01-11.
- "History and Development of the Quartz Watch". doensen.home.xs4all.nl. Retrieved 2019-01-11.
- "History at a Glance: The Story of Patek Philippe -". Deployant. 2017-09-25. Retrieved 2019-01-11.
- "Patek Philippe | Company | History (1988–2018)". Patek Philippe SA. Retrieved 2019-01-11.
- Malcolmson, James D. (2017-12-24). "The Annual Calendar Mechanism is Truly a Modern Movement". Robb Report. Retrieved 2019-01-11.
- "The Purists.net, Patek Philippe 2005 technical innovations". Archived from the original on February 15, 2009. Retrieved January 23, 2009.
- "Give Me Five! All 5 Of Patek Philippe's Advanced Research Limited Editions". Quill & Pad. 2017-12-30. Retrieved 2019-02-15.
- "Patek Philippe Unveils Grandmaster Chime: The World's Most Complicated Wristwatch (Ever)". www.bloomberg.com. Retrieved 2018-12-11.
- "Results: Christie's Hong Kong Sale of Important Watches Realises HK$186,337,375 (US$24,167,957)". www.christies.com. Retrieved 2018-12-01.
- "Patek Philippe (Star Calibre 2000, Ref. 990/1, Movement No. 3,200,005, Case No. 4,125,166, Circa 2008)". www.christies.com. Retrieved 2018-12-21.
- "Patek Philippe (The Henry Graves Jr. Supercomplications)". Sotheby's.
- Manousos, Nicholas (June 21, 2018). "Historical Perspectives: Rarely Seen Documentary Video Featuring George Daniels And Seth Atwood". Hodinkee. Retrieved 2019-01-29.
- "Sheikh Saud Bin Mohammed Bin Ali Al-Thani: Sheikh who became Qatar's". The Independent. 2014-11-18. Archived from the original on 2022-05-25. Retrieved 2019-01-25.
- "Most Expensive Wrist Watch Ever Sold? Patek Philippe Ref. 1518", Twentytwoten.com, News, 12 Nov 2016
- "The story of the Patek Philippe 1518". Italian Watch Spotter. 2020-02-09. Retrieved 2021-04-15.
- "Patek Philippe Grandmaster Chime – The Grandmaster Chime reference 6300A-010". Christie's. Retrieved 2019-11-11.
- "Patek Philippe Nautilus for Tiffany sets a new world record for any wristwatch sold online".
- "Review: Patek Philippe Calatrava Travel Time". www.watchfinder.com. Retrieved 2019-01-14.
- "The History of the Patek Philippe Calatrava | The Loupe, TrueFacet". 2018-10-12. Retrieved 2019-01-14.
- Lim, Terence (2017-10-11). "Patek Philippe And Its German Art Movement Connection". Philippine Tatler. Retrieved 2019-01-14.
- Clymer, Benjamin (May 18, 2016). "In-Depth: The Patek Philippe 2526, And Why It's A Watch To Pay Attention To". Hodinkee. Retrieved 2019-01-14.
- Forster, Jack (July 12, 2017). "Introducing: The Patek Philippe World Time Ref. 5230G New York 2017 Limited Edition". Hodinkee. Retrieved 2019-01-05.
- "Time Around The World: A History of Patek Philippe World Timers | WatchBox". www.thewatchbox.com. Retrieved 2021-04-15.
- "World time: Patek Philippe and Louis Cottier". www.europastar.com. Retrieved 2019-01-05.
- "Patek Philippe & Cie, Genève, No. 929693, case No. 656462, Ref. 1415 HU (Heures Universelles)". catalog.antiquorum.swiss. Retrieved 2019-01-05.
- Ruiz, Nicola. "By The Numbers: The World's Most Expensive Watches". Forbes. Retrieved 2019-01-05.
- "Patek Philippe | Company | History". Patek Philippe SA. Retrieved 2019-01-05.
- "Secrets of the Patek Philippe Nautilus | Christie's". www.christies.com. Retrieved 2019-01-05.
- "History of the Patek Philippe Nautilus, Part 1 - The Birth of an Icon, the 3700 (1976/1990)". Monochrome Watches. 2016-10-11. Retrieved 2019-01-05.
- History of the Patek Philippe Nautilus, 2015
- Koch, Jens (2018-12-14). "Luxury in Steel: A History of the Patek Philippe Nautilus". WatchTime - USA's No.1 Watch Magazine. Retrieved 2019-01-05.
- "Collecting guide: Patek Philippe perpetual chronograph wristwatches". www.christies.com. Retrieved 2018-12-15.
- "One of the Most Important Vintage Wristwatches in the World". Sotheby's.
- "Geneva Auction Highlight: The Rose Gold Patek Philippe Ref. 2499 (Third Series)". www.phillipswatches.com. Retrieved 2018-12-15.
- Clymer, Benjamin (March 11, 2014). "Reference Points: Understanding The Entire Lineage Of Patek Philippe Perpetual Calendar Chronographs". Hodinkee. Retrieved 2019-01-26.
- "Patek Philippe Ref. 2499: A Brief History of a Classic". watchtime. Retrieved 2018-12-15.
- "Patek Philippe (Retailed by Asprey: Ref 2499)". Sotheby's.
- "The Titanium Collection: Patek Philippe 5001T". Sotheby's. Retrieved 2019-01-29.
- Doerr, Elizabeth. "The Patek Philippe Sky Moon Tourbillon Earns A Place In Horological History". Forbes. Retrieved 2019-01-28.
- Frank, Robert (2013-09-13). "$1 million watch—and you have to apply to buy it!". www.cnbc.com. Retrieved 2019-01-30.
- "Patek Philippe Launches The Sky Moon Tourbillon". Revolution. 2013-06-01. Retrieved 2019-01-30.
- "Patek Philippe | Poly Auction Hong Kong". www.polyauction.com.hk. Retrieved 2019-01-28.
- Forster, Jack (May 23, 2016). "Hands-On: A Patek Philippe Caliber 89, For Sale At Christie's New York". Hodinkee. Archived from the original on 2018-11-23. Retrieved 2018-12-13.
- "The Yellow Gold Calibre 89 Patek Philippe". catalog.antiquorum.swiss. Archived from the original on 2018-11-24. Retrieved 2018-11-23.
- "Patek, Philippe, Genève. The white gold "Calibre 89"". catalog.antiquorum.swiss. Archived from the original on 2018-11-24. Retrieved 2018-11-23.
- "Patek Philippe Calibre 89, the 20th century's most complicated watch, heads to auction". New Atlas. 2017-05-11. Retrieved 2021-04-15.
- "Patek Philippe Caliber 89, The World's Most Complicated Watch For 26 Years, To Be Auctioned By Sotheby's In May 2017 Important Watches Sale – Quill & Pad". quillandpad.com. Retrieved 2021-04-15.
- Touchot, Arthur (May 14, 2017). "Auction Report: Patek Philippe Caliber 89 Fails To Sell (Again)". Hodinkee. Retrieved 2018-12-13.
- "Hands-On: A Patek Philippe Caliber 89, For Sale At Christie's New York". Hodinkee. Archived from the original on 2018-11-23. Retrieved 2018-11-23.
- "Patek Philippe Calibre 89 sold for $5 million". JCK. Archived from the original on 2018-11-23. Retrieved 2018-11-23.
- Muraj, Evald (October 21, 2014). "Introducing The Patek Philippe Grandmaster Chime Ref. 5175R, Their Most Complicated Wristwatch Yet". Hodinkee. Retrieved 2018-12-11.
- Wright, Erica (2014-10-14). "Patek Philippe unveils $2.6M watch". www.cnbc.com. Retrieved 2018-12-11.
- "Patek Philippe | Grand Complications Grand Master Chime 6300G-001". Patek Philippe SA. Retrieved 2019-01-05.
- Clymer, Benjamin (March 17, 2016). "Introducing: The Grandmaster Chime Reference 6300G – The Most Complicated Patek, Now In White Gold". Hodinkee. Retrieved 2019-01-05.
- "Patek Philippe Goes 'Simple' With a $2.3 Million Wristwatch". www.bloomberg.com. Retrieved 2019-01-05.
- Library of reference books on Patek Philippe watches and company - Patek Philippe website
- Kepa, Marek, "Watches for Royalty", Culture.pl, July 27, 2015
- Liu, Ming, "At Patek Philippe, 'the D.N.A. Comes In'", The New York Times, March 17, 2016
- Thompson, Joe, "Family Values: Patek Philippe’s Thierry and Philippe Stern", WatchTime Magazine, August 8, 2012
- Walston, Oliver. "David and Goliath", Lusso magazine, August 8, 2009.
- Mazzardo, Alessandro. "History of the Patek Philippe Nautilus", Time and Watches, Dec 16, 2021.