{"query": "087-91", "brand": null, "total": 10, "limit": 10, "matches": [{"slug": "cartier-087-91", "brand": "Cartier", "ref": "087-91", "model": "Dual-Time Tonneau", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/cartier-087-91", "description": "The Cartier Dual-Time Tonneau reference 087-91 was produced during the early 1990s as part of the Collection Privée Cartier Paris (CPCP) precursor era. This 18k yellow gold model features a curved, elongated case measuring approximately 26mm by 46mm, housing two independent mechanical movements. Unlike modern dual-time watches using a single caliber with a GMT complication, the 087-91 utilizes two manual-wind Caliber 2512 movements, each controlled by its own crown on the right side of the case. The dial typically features traditional guilloché engraving, Roman numerals, and two separate sub-dials for tracking different time zones. Collectors value this reference for its mechanical eccentricity and its role in reviving Cartier’s historical shapes. On the secondary market, these pieces generally trade between $25,000 and $40,000. A notable variant includes the \"Paris\" signed dial versions, which often command a premium at international auctions.", "score": 205}, {"slug": "a-lange-s-hne-912", "brand": "A. Lange & Söhne", "ref": "912", "model": "Grand Complication", "case_material": "Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/a-lange-s-hne-912", "description": "The A. Lange & Söhne Grand Complication reference 425.041 in pink gold was unveiled in 2013 as a limited edition of six pieces, with production spanning approximately one decade due to the complexity of its assembly. Collectors value this reference as the brand’s most complicated wristwatch, featuring the manual-wind caliber L1902. The movement comprises 876 parts and powers a grand and small strike, a minute repeater, a split-seconds chronograph with flying seconds, and a perpetual calendar with a moon phase. The 50mm case is constructed from 18-carat pink gold and houses a multi-part enamel dial. Given its extreme rarity and original retail price of approximately 1.9 million euros, secondary market values typically reside in the high-seven-figure range, though public transactions are rare. One notable production detail is that a single master watchmaker requires one year to assemble and regulate the strike mechanism for each individual piece.", "score": 20}, {"slug": "audemars-piguet-26591io", "brand": "Audemars Piguet", "ref": "26591IO", "model": "Royal Oak Concept Supersonnerie", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26591io", "description": "The Audemars Piguet Royal Oak Concept Supersonnerie reference 26591IO.OO.A002CA.01 was introduced in 2016 and remains a low-volume production piece within the brand’s high-complication catalog. Collectors prioritize this reference for its caliber 2937 movement, which utilizes a patented soundboard technology and a unique striking mechanism designed to amplify the minute repeater’s chime. The 44mm case is constructed from sandblasted titanium with a black ceramic bezel, screw-locked crown, and pushpieces. Its openworked dial features a black 30-minute counter and yellow accents for legibility. This reference represents the commercial application of the RD#1 prototype, focusing on acoustic performance in a water-resistant case. On the secondary market, this model typically commands prices in the mid-to-high six-figure range, often between $350,000 and $550,000 depending on condition. A notable production detail is the caseback’s \"sonic\" perforations, which allow sound to escape while maintaining 20-meter water resistance.", "score": 20}, {"slug": "breguet-3910", "brand": "Breguet", "ref": "3910", "model": "Classique", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3910", "description": "The Breguet Classique reference 3910 was produced during the 1990s and early 2000s and is currently discontinued. Collectors seek this reference for its traditional 34mm 18k yellow gold case featuring the brand’s signature coin-edge fluting and straight lugs with screw-bars. The dial is solid gold with silvered engine-turning, executed in a \"clous de Paris\" pattern, and utilizes heat-blued steel Breguet hands. It is powered by the manual-wind Caliber 818/5, a movement based on a Lemania ebauche, which includes a small seconds sub-dial at the 6 o'clock position. On the secondary market, the 3910 typically trades between $6,000 and $9,000 depending on the presence of original box and papers. While the yellow gold version is the most common, a white gold variant, reference 3910G, was produced in smaller quantities and often commands a slight premium at auction.", "score": 20}, {"slug": "breguet-8918", "brand": "Breguet", "ref": "8918", "model": "Reine de Naples", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-8918", "description": "The Breguet Reine de Naples 8918 in 18k white gold is a mainstay of the brand’s current catalog, having been in continuous production since the early 2000s. Collectors prioritize this reference for its historical lineage, as the collection is modeled after the first wristwatch created by Abraham-Louis Breguet for Caroline Murat in 1812. The 8918 features an ovoid case measuring 36.5mm by 28.45mm, housing the self-winding Calibre 537/3 with a 45-hour power reserve and a silicon escapement. Technical specifications include a hand-guilloché gold dial, often finished in silvered or mother-of-pearl tones, and a bezel set with approximately 117 diamonds. On the secondary market, this reference typically trades between $18,000 and $26,000 depending on condition and provenance. A notable production variant includes the \"Grand Feu\" enamel dial version, which commands higher premiums at auction due to the complexity of the firing process.", "score": 20}, {"slug": "cartier-1991", "brand": "Cartier", "ref": "1991", "model": "Crash", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/cartier-1991", "description": "The 1991 Cartier Crash in 18k yellow gold represents the first limited production run of the model following its 1967 London origins. Produced in a series of 400 pieces, this reference features a 38mm by 23mm asymmetrical case housing the manual-wind Caliber 160. Collectors prioritize this edition for its \"Paris\" signed dial and the presence of a sapphire cabochon crown, distinguishing it from later boutique editions. Unlike the original London versions, these cases were manufactured in France and feature standardized hallmarks. On the secondary market, prices typically fall within the $200,000 to $350,000 range depending on the presence of the original deployant buckle and documentation. A notable auction result occurred in 2021 when a well-preserved example reached approximately $277,000, reflecting the high demand for this specific 400-piece series compared to modern, unlimited re-editions or the extremely rare 1960s originals.", "score": 20}, {"slug": "cartier-2916", "brand": "Cartier", "ref": "2916", "model": "Tank Louis Dual-Time CPCP", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/cartier-2916", "description": "The Cartier Tank Louis Dual-Time reference 2916 was produced between 2005 and 2006 as part of the Collection Privée Cartier Paris (CPCP). This reference is distinguished by its 18k pink gold case measuring 30mm by 39mm and its use of two independent mechanical movements, Caliber 055, rather than a single movement with a complication. The dial features traditional CPCP hallmarks, including a central guilloché rose motif, Roman numerals, and two separate time displays. Collectors value this reference for its limited production window and its mechanical layout, which requires two separate crowns located on the right side of the case. On the secondary market, this reference typically trades between $35,000 and $50,000 depending on condition and the presence of original accessories. A notable production detail is that while most CPCP models utilize Piaget-based movements, the 2916 relies on two ultra-thin manual-wind calibers to maintain its slim profile.", "score": 20}, {"slug": "hublot-1915", "brand": "Hublot", "ref": "1915", "model": "Classic Fusion", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-1915", "description": "The Hublot Classic Fusion 1915 in 18k pink gold, specifically reference 1915.GP.10.7, was produced during the mid-to-late 2000s and is no longer in current production. Collectors target this reference as a bridge between the original 1980s MDM designs and the modern Big Bang era. It features a 41mm 18k pink gold case with the signature integrated black rubber strap and a minimalist black dial with gold indices. The watch is powered by a modified ETA-based automatic movement, often the Caliber HUB11, which offers a 42-hour power reserve. This model is valued for its thinner profile compared to the Big Bang and its adherence to the brand’s \"Art of Fusion\" origins. On the secondary market, this reference typically trades between $8,000 and $12,000 depending on condition. A notable production detail is the use of the early \"Hublot Geneve\" dial branding, which distinguishes it from later Classic Fusion iterations.", "score": 20}, {"slug": "hublot-915", "brand": "Hublot", "ref": "915", "model": "MP-15 Takashi Murakami Tourbillon Only Watch", "case_material": "Polished Sapphire", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-915", "description": "The Hublot MP-15 Takashi Murakami Tourbillon Only Watch 2023 is a unique piece produced specifically for the 2023 Only Watch charity auction. This reference features the brand’s first central flying tourbillon, powered by the manual-wind caliber HUB9015 with a 150-hour power reserve. The 42mm case is constructed from polished clear sapphire, shaped into Murakami’s signature twelve-petaled flower motif. The dial is integrated into the movement architecture, surrounded by 444 gemstones including rubies, sapphires, and amethysts set into the petals. Collectors value this reference for its technical departure from standard Hublot layouts and its status as a one-of-one prototype for the subsequent limited production series. While the retail estimate was approximately $350,000 to $400,000, it sold at auction for 420,000 CHF. On the secondary market, unique Only Watch pieces typically command mid-to-high six-figure prices depending on private sale negotiations.", "score": 20}, {"slug": "iwc-iw3891-04", "brand": "IWC", "ref": "IW3891-04", "model": "Pilot SFTI'", "case_material": "Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-iw3891-04", "description": "The IWC Pilot’s Watch Chronograph Edition “SFTI” (Reference IW389104) was released in 2020 as a limited production of 1,500 units and is currently discontinued. This reference is valued for its technical construction, featuring a 44.5mm matte black zirconium oxide ceramic case and Ceratanium pushers and case back, a material combining the lightness of titanium with the scratch resistance of ceramic. It utilizes the in-house caliber 69380, a column-wheel chronograph movement with a 46-hour power reserve. The dial is distinguished by a tactical matte black finish with a red small seconds hand shaped like a jet. This civilian version is derived from the \"Strike Fighter Tactics Instructor\" watch exclusively available to TOPGUN graduates. On the secondary market, prices typically range between $8,000 and $11,000. It remains a key piece for collectors due to its direct lineage to military-exclusive equipment and the specific use of proprietary materials.", "score": 20}]}