{"query": "18", "brand": null, "total": 10, "limit": 10, "matches": [{"slug": "zenith-18", "brand": "Zenith", "ref": "18", "model": "Academy Force Constante Georges Favre-Jacot", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-18", "description": "Released in 2014 to commemorate Zenith’s 150th anniversary, the Zenith Academy Force Constante Georges Favre-Jacot (Reference 18.2210.4805/01.C713) was produced as a limited edition of 150 pieces in 18k pink gold. Collectors prioritize this reference for the manual-wind El Primero Calibre 4805, which integrates a fusée-and-chain transmission system designed to ensure constant force throughout the movement's 50-hour power reserve. The 45mm case features an open-dial architecture, exposing the chain mechanism between 10 and 2 o’clock and the high-frequency 36,000 vph escapement at 6 o’clock. On the secondary market, this model typically trades in the $45,000 to $65,000 range, representing a significant decrease from its original retail price of approximately $82,000. While the pink gold version is the primary reference, Zenith later released a titanium variant under the \"Academy Christophe Colomb\" lineage featuring similar constant-force technology but different case dimensions.", "score": 197}, {"slug": "a-lange-sohne-238-032-1815-annual-calendar", "brand": "A. Lange & Söhne", "ref": "238.032", "model": "1815 Annual Calendar", "case_material": "18k Pink Gold", "url": "https://mostexpensivewatches.net/reference/a-lange-sohne-238-032-1815-annual-calendar", "description": "The A. Lange & Söhne 1815 Annual Calendar reference 238.032 in 18k pink gold was introduced in 2017 and remains in the current collection. Collectors value this reference for its manual-wind caliber L051.3, which features a 72-hour power reserve and a pusher at two o'clock for simultaneous advancement of all calendar indications. The 40mm case houses a solid silver argenté dial with blued steel hands, Arabic numerals, and a railway-track minute scale characteristic of the 1815 family. Unlike the Saxonia Annual Calendar, this model lacks a panoramic date, opting for a classic pointer-date subdial. On the secondary market, this reference typically trades between $38,000 and $46,000 depending on condition and completeness. A notable technical detail is the inclusion of a hidden button between seven and eight o'clock that allows for the independent adjustment of the moon phase display, which is calculated to remain accurate for 122.6 years.", "score": 82}, {"slug": "audemars-piguet-26518st", "brand": "Audemars Piguet", "ref": "26518ST", "model": "Royal Oak Tourbillon Extra-Thin Openworked", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26518st", "description": "The Audemars Piguet Royal Oak Tourbillon Extra-Thin Openworked reference 26518ST.OO.1220ST.01 was introduced in 2017 as a limited edition of 100 pieces. This reference is valued for its combination of a stainless steel case and bracelet with a skeletonized tourbillon movement, a pairing typically reserved for precious metals or titanium. It houses the manual-wind Calibre 2924, which measures 4.46mm thick, allowing for a total case height of 8.95mm. The openworked architecture features slate grey bridges and a visible mainspring barrel at the one o'clock position. On the secondary market, this reference typically trades in the mid-to-high six-figure range, often between $450,000 and $650,000 depending on condition and provenance. A notable auction result occurred in 2021 when a specimen sold for approximately $770,000, reflecting the scarcity of steel-cased complications within the Royal Oak lineage compared to their gold counterparts.", "score": 82}, {"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": 82}, {"slug": "breguet-3218", "brand": "Breguet", "ref": "3218", "model": "Perpetual Calendar Retrograde", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-3218", "description": "The Breguet Classique Perpetual Calendar Retrograde reference 3218 in 18k white gold was produced during the 1990s and is now discontinued. Collectors value this reference for its 36mm coin-edge case and the caliber 591 automatic movement, which features a solid gold rotor and a retrograde date display positioned at 6 o'clock. The dial is crafted from solid gold with hand-guilloché patterns, featuring traditional blued steel pomme hands and Roman numeral tracks. This reference is noted for its slim profile and its adherence to the aesthetic principles established by Daniel Roth during the brand's late 20th-century resurgence. On the secondary market, the 3218 in white gold typically trades between $25,000 and $35,000 depending on condition and the presence of original accessories. While the yellow gold variant is more common, the white gold execution is produced in smaller quantities, making it a rarer find at international auctions.", "score": 82}, {"slug": "h-moser-cie-1804-1201", "brand": "H. Moser & Cie", "ref": "1804-1201", "model": "Endeavour Tourbillon Concept", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/h-moser-cie-1804-1201", "description": "The H. Moser & Cie. Endeavour Tourbillon Concept reference 1804-1201 was released in 2018 as a limited edition of 20 pieces and is no longer in production. This reference is distinguished by its 42mm stainless steel case, a material rarely used by the brand for tourbillon complications, which are typically reserved for precious metals. It features the HMC 804 self-winding manufacture movement, equipped with a double hairspring and a one-minute flying tourbillon visible at six o'clock. The \"Concept\" designation indicates the absence of a logo or indices on the Funky Blue fumé dial, emphasizing minimalist aesthetics. Collectors value this model for its combination of a high-complication movement with a utilitarian steel case and the brand’s signature stripped-back design language. On the secondary market, this reference typically trades in the $55,000 to $75,000 range. A similar steel-cased Concept tourbillon achieved approximately $63,000 at a 2022 Christie’s auction.", "score": 82}, {"slug": "h-moser-cie-1810-1200", "brand": "H. Moser & Cie", "ref": "1810-1200", "model": "H. Moser x MB&F Endeavour Cylindrical Tourbillon", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/h-moser-cie-1810-1200", "description": "Released in 2020 as a limited edition of 15 pieces, the H. Moser x MB&F Endeavour Cylindrical Tourbillon reference 1810-1200 represents the first collaboration between these two independent manufactures. This specific reference features a 42mm stainless steel case and a Funky Blue fumé dial. The movement, caliber HMC 810, is a three-dimensional automatic engine utilizing a one-minute flying tourbillon equipped with a cylindrical hairspring positioned at 12 o’clock. Time is displayed on a 40-degree inclined sapphire sub-dial at 6 o’clock, a signature MB&F design element. Collectors value this reference for its technical integration of Moser’s hairspring expertise and MB&F’s architectural aesthetics. On the secondary market, this model typically trades in the $70,000 to $95,000 range. While five color variants were produced in steel, the Funky Blue edition remains a primary focus for collectors due to its direct link to Moser’s visual identity.", "score": 82}, {"slug": "hublot-318", "brand": "Hublot", "ref": "318", "model": "Big Bang Maradona", "case_material": "Black Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-318", "description": "The Hublot Big Bang Maradona reference 318.CI.1129.GR.DMA10 was released in 2010 as a limited edition of 250 units and is no longer in production. Collectors target this reference for its 44mm micro-blasted black ceramic case and the specialized HUB1146 self-winding chronograph movement, which features a 45-minute central counter designed for timing football halves. The matte black dial incorporates Diego Maradona’s signature at 6 o’clock and his jersey number 10 at 3 o’clock, accented in Argentine blue. The secondary market price typically ranges between $10,000 and $15,000 depending on condition and the inclusion of original packaging. A notable production detail is the case back, which features an image of Maradona’s victory pose. This model was followed by a King Power version in 2012, but the 318 remains the primary ceramic Big Bang associated with the athlete.", "score": 82}, {"slug": "iwc-1811", "brand": "IWC", "ref": "1811", "model": "Yacht Club", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-1811", "description": "The IWC Yacht Club reference 1811 was produced from approximately 1967 through the mid-1970s. Collectors prioritize this reference for its technical durability and the caliber 8541B movement, which features the Pellaton winding system and a shock-absorbing rubber mount. The stainless steel case measures 36mm and was designed by Gérald Genta, characterized by a C-shape profile and integrated lugs. Dials typically feature sunburst finishes or matte textures with applied baton indices and a date window at three o'clock. Due to its high production volume relative to other vintage IWC models, it remains accessible, with secondary market prices generally ranging from $2,500 to $4,500 depending on condition and the presence of the original Gay Frères steel bracelet. A notable variant is the \"blue sunburst\" dial, which often commands a premium at auction over the standard silver or champagne configurations.", "score": 82}, {"slug": "iwc-1832", "brand": "IWC", "ref": "1832", "model": "Ingenieur SL", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-1832", "description": "The IWC Ingenieur SL Reference 1832 was produced between 1976 and approximately 1983. Designed by Gérald Genta, this reference is valued for its place in the \"Jumbo\" integrated-bracelet era and its anti-magnetic construction, featuring a soft-iron inner cage. It utilizes the in-house caliber 8541B Pellaton automatic movement. The 40mm steel case earned the nickname \"Jumbo\" due to its dimensions relative to contemporary standards. Production was limited, with estimates suggesting fewer than 600 stainless steel units were manufactured, making it significantly rarer than its peers from the same period. On the secondary market, prices typically range from $25,000 to $45,000 depending on condition and provenance. A notable variant is the \"checkerboard\" or \"graph paper\" dial texture, which is a primary identifier for the reference. Rare examples featuring the \"IWC\" logo at 12 o'clock instead of the full brand name occasionally appear at auction.", "score": 82}]}