{"query": "221", "brand": null, "total": 5, "limit": 10, "matches": [{"slug": "a-lange-s-hne-221", "brand": "A. Lange & Söhne", "ref": "221", "model": "1815 Up/Down", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/a-lange-s-hne-221", "description": "The A. Lange & Söhne 1815 Up/Down reference 221.025 in platinum was produced between approximately 1997 and 2008. Collectors prioritize this reference for its 35.9mm case diameter, which adheres to traditional proportions compared to the larger modern iterations. It is powered by the manual-wind caliber L942.1, featuring a 45-hour power reserve indicated by the \"AUF/AB\" scale at 8 o'clock and a small seconds sub-dial at 4 o'clock. The solid silver dial utilizes Arabic numerals and blued steel hands, housed in a three-part platinum case with a sapphire crystal caseback. On the secondary market, this reference typically trades between $25,000 and $35,000 depending on the presence of original documentation. A notable production detail is the movement’s finishing, which includes a hand-engraved balance cock and screw-mounted gold chatons. While the yellow and rose gold variants are more common, the platinum reference 221.025 remains the most sought-after metal for this discontinued series.", "score": 198}, {"slug": "audemars-piguet-26221ft", "brand": "Audemars Piguet", "ref": "26221FT", "model": "Royal Oak Concept Laptimer Michael Schumacher", "case_material": "Forged Carbon and Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26221ft", "description": "Released in 2015 as a limited edition of 221 pieces, the Audemars Piguet Royal Oak Concept Laptimer Michael Schumacher (reference 26221FT.OO.D002CA.01) is no longer in production. Collectors prioritize this reference for its unique Calibre 2923 movement, which features a world-first mechanical complication: a double-chronograph system capable of measuring consecutive lap times with a single flyback and restart function. The 44mm case is constructed from forged carbon with a titanium bezel and caseback, housing a skeletonized dial that reveals the column-wheel mechanisms. This model represents a five-year collaboration between the manufacturer and the Formula 1 driver. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often between $600,000 and $850,000 depending on condition. A notable auction result occurred in 2022 when a well-preserved example sold for approximately $750,000, reflecting its rarity and technical complexity.", "score": 83}, {"slug": "iwc-iw5022-18", "brand": "IWC", "ref": "IW5022-18", "model": "Portugieser Perpetual Calendar", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-iw5022-18", "description": "The IWC Portugieser Perpetual Calendar reference IW5022-18 was produced between approximately 2006 and 2010. This reference is valued by collectors for its 42.3mm 18k white gold case and the caliber 51613 movement, which features Kurt Klaus’s synchronized calendar module and a seven-day power reserve. Unlike later 44mm versions, the IW5022 maintains a more traditional diameter and utilizes a single moon phase display at 12 o’clock rather than the double hemisphere moon. The dial is finished in Ardoise grey with applied Arabic numerals. On the secondary market, this reference typically trades between $18,000 and $24,000 depending on condition and the presence of original documentation. A notable production detail is that this reference belongs to the first generation of Portugieser Perpetual Calendars to transition from the earlier 40mm 3541 reference to the modern Pellaton-winding manufacture movements.", "score": 83}, {"slug": "parmigiani-fleurier-pf008221", "brand": "Parmigiani Fleurier", "ref": "PF008221", "model": "Bugatti Type 370", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/parmigiani-fleurier-pf008221", "description": "The Parmigiani Fleurier Bugatti Type 370 reference PF008221 in 18k white gold was introduced around 2004 as part of a limited production run that concluded by 2010. Collectors target this reference for its transverse manual-wind Calibre 331, which utilizes a pillar-based architecture arranged on a horizontal axis to mimic a car engine. The 18k white gold case features a wedge-shaped profile designed for legibility while driving, with the dial positioned on the side of the wrist. This specific reference is limited to 150 pieces and includes six sapphire crystals providing views of the movement’s internal gear trains. On the secondary market, this model typically trades in the $40,000 to $70,000 range depending on condition and provenance. A notable production detail is the starter pen tool required to set the time and wind the movement via the case back.", "score": 83}, {"slug": "panerai-pam00522", "brand": "Panerai", "ref": "PAM00522", "model": "Radiomir 1940 Oro Rosso", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/panerai-pam00522", "description": "The Panerai Radiomir 1940 Oro Rosso PAM00522 was released in 2013 as a special edition limited to 100 units. Collectors prioritize this reference for its 47mm 18k polished red gold case and the inclusion of the Minerva-based OP XXV caliber, a hand-wound chronograph movement visible through the sapphire caseback. The dial features a brown \"sandwich\" construction with a tachymeter scale and a plexiglass crystal, referencing vintage 1940s aesthetics. This model represents a specific era where Panerai utilized high-grade historical movements from external suppliers like Minerva. On the secondary market, the PAM00522 typically commands prices between $35,000 and $45,000 depending on condition and the presence of original packaging. A notable production detail is its sister reference, the PAM00521, which shares the same movement and limited production volume but is housed in a polished steel case rather than precious metal.", "score": 71}]}