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809Σ

Patek Philippe

Ref. 5550P-001

Advanced Research

A “like-new”, highly rare and attractive limited edition platinum perpetual calendar wristwatch with moon phases, 24-hour, leap year indication, Silinvar escape wheel, patented Spiromax balance spring and Pulsomax escapement, additional solid caseback, setting pin, Certificate of Origin and presentation box, made in a limited edition of 300 pieces

Estimate
HK$500,000 - 800,000
€55,300 - 88,400
$64,100 - 103,000
HK$1,460,500
Lot Details
Manufacturer
Patek Philippe
Year
Circa 2012
Reference No
5550P-001
Movement No
5’627’685
Case No
4’764’867
Model Name
Advanced Research
Material
Platinum
Calibre
Automatic, cal. 240 Q, 25 jewels
Bracelet/Strap
Crocodile
Clasp/Buckle
Platinum Patek Philippe deployant clasp
Dimensions
37mm diameter
Signed
Case, dial, movement and clasp signed
Accessories
Accompanied by Patek Philippe Certificate of Origin stamped King Fook Jewellery Group Ltd. Hong Kong, dated 29 November 2012, instruction manual, product literature, leather folio, additional solid caseback, setting pin, hang tag, fitted winding presentation box and outer packaging.
Catalogue Essay
Launched in 2011, the ref. 5550P was produced as a limited edition of 300 pieces and remains today one of the most coveted expressions of the Advanced Research concept. It was the first Patek Philippe wristwatch to incorporate three silicon‑based components working in unison: a Silinvar balance wheel, the patented Spiromax balance spring, and the Pulsomax escapement. Together, they offered unprecedented stability, lubrication‑free performance, enhanced chronometry, and long‑term reliability.

Fresh-to-the-market, the present example is offered in “like-new” condition from the original owner and is accompanied by its full set of accessories including an additional solid caseback. Only approximately 15 examples are known publicly. As one of the defining creations of the Advanced Research Division, the ref. 5550P stands not only as a highly collectible Patek Philippe but also as a milestone marking the brand’s boldest step into the future of watchmaking.

Patek Philippe

Swiss | 1839
Since its founding in 1839, this famous Geneva-based firm has been surprising its clientele with superbly crafted timepieces fitted with watchmaking's most prestigious complications. Traditional and conservative designs are found across Patek Philippe's watches made throughout their history — the utmost in understated elegance.Well-known for the Graves Supercomplication — a highly complicated pocket watch that was the world’s most complicated watch for 50 years — this family-owned brand has earned a reputation of excellence around the world. Patek's complicated vintage watches hold the highest number of world records for results achieved at auction compared with any other brand. For collectors, key models include the reference 1518, the world's first serially produced perpetual calendar chronograph, and its successor, the reference 2499. Other famous models include perpetual calendars such as the ref. 1526, ref. 3448 and 3450, chronographs such as the reference 130, 530 and 1463, as well as reference 1436 and 1563 split seconds chronographs. Patek is also well-known for their classically styled, time-only "Calatrava" dress watches, and the "Nautilus," an iconic luxury sports watch first introduced in 1976 as the reference 3700 that is still in production today.
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