{"query": "MM", "brand": null, "total": 10, "limit": 10, "matches": [{"slug": "universal-gen-ve-mm", "brand": "Universal Genève", "ref": "MM", "model": "Split Seconds Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/universal-gen-ve-mm", "description": "The Universal Genève Split-Seconds Chronograph in stainless steel, often identified as reference 22536, was produced during the early to mid-1940s. Collectors prioritize this model due to its 38mm case diameter, which was unusually large for the era, and the inclusion of the caliber 286 movement. This manual-wind caliber features a rattrapante function, allowing for the timing of two simultaneous events. The dial typically includes a tachymeter scale and three registers, often found in silver or black configurations. Production numbers were extremely limited, with estimates suggesting fewer than 100 units were manufactured. On the secondary market, these watches generally command prices in the low-to-mid six-figure range depending on condition and originality. A notable auction result occurred in 2018 when a well-preserved steel example sold for over $250,000, reflecting the rarity of the split-seconds complication within the brand's historical catalog.", "score": 197}, {"slug": "fp-journe-octa-lune-platinum-40mm", "brand": "F.P. Journe", "ref": "Octa Lune", "model": "Octa Lune", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/fp-journe-octa-lune-platinum-40mm", "description": "The F.P. Journe Octa Lune in platinum was introduced in 2003 as part of the brand’s first automatic collection. Early examples produced between 2003 and 2004 feature brass movements (Calibre 1300), while models from late 2004 onward utilize 18k rose gold movements (Calibre 1300.2 or 1300.3). Collectors prioritize the 38mm case size over the later 40mm and 42mm versions due to its historical proportions. The dial layout includes an off-center time display, a large date, and a moon phase indicator. Secondary market prices typically range from $85,000 to $130,000, depending on the movement material and case diameter. A notable production variant is the \"Ruthenium Series\" from the early 2000s, limited to 99 pieces, which features a dark grey dial and a 40mm platinum case, often commanding prices exceeding $200,000 at auction.", "score": 82}, {"slug": "fp-journe-elegante-48mm-titalyt", "brand": "F.P. Journe", "ref": "Élégante 48mm", "model": "Élégante 48mm Titalyt", "case_material": "Titanium", "url": "https://mostexpensivewatches.net/reference/fp-journe-elegante-48mm-titalyt", "description": "The F.P. Journe Élégante 48mm Titalyt was introduced in 2019 as an evolution of the original 2014 quartz collection and remains in current production. Collectors value this reference for the Calibre 1210 electromechanical movement, which features a motion sensor at 4:30 that puts the watch into standby mode after 30 minutes of inactivity to extend battery life up to 18 years. The 48mm Tortue case is constructed from Grade 5 titanium treated with Titalyt, an electro-plasma oxidation process that increases surface hardness and creates a distinct matte grey finish. The dial is fully coated in Super-LumiNova, providing high visibility in low light. On the secondary market, these timepieces typically trade between $35,000 and $50,000. A notable production detail is the sapphire crystal caseback, which reveals the movement’s 18k rose gold battery bridge, a rare aesthetic choice for a quartz-based caliber.", "score": 82}, {"slug": "hublot-big-bang-unico-sapphire-45mm", "brand": "Hublot", "ref": "411.JX.4820.RT", "model": "Big Bang Unico Sapphire", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/hublot-big-bang-unico-sapphire-45mm", "description": "The Hublot Big Bang Unico Sapphire (reference 411.JX.4820.RT) was introduced in 2016 as a limited edition of 500 pieces, marking a significant shift in the brand's use of industrial-scale sapphire casing. The 45mm case is constructed from polished sapphire crystal blocks, offering a 360-degree view of the in-house HUB1242 Unico movement. This caliber is a self-winding flyback chronograph with a column wheel visible on the dial side. The skeletonized dial features transparent resin components and luminescent hands to maintain the monochromatic aesthetic. Collectors value this reference as the foundational model for Hublot’s transparent series, representing a technical achievement in machining extremely hard materials. On the secondary market, this reference typically trades between $35,000 and $50,000 depending on condition. A notable production variant includes the \"All Black\" sapphire version, which utilized smoked crystal to achieve transparency while maintaining a dark profile.", "score": 82}, {"slug": "hublot-spirit-of-big-bang-sapphire-42mm", "brand": "Hublot", "ref": "641.JX.0120.RT", "model": "Spirit of Big Bang Sapphire", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/hublot-spirit-of-big-bang-sapphire-42mm", "description": "The Hublot Spirit of Big Bang Sapphire (reference 641.JX.0120.RT) was introduced in 2017 as a limited edition of 250 pieces and is no longer in active production. Collectors prioritize this reference for its tonneau-shaped case constructed entirely from polished synthetic sapphire crystal, a material noted for its extreme hardness and transparency. It houses the HUB4700 caliber, an automatic skeletonized chronograph movement based on the high-frequency Zenith El Primero, operating at 36,000 vibrations per hour with a 50-hour power reserve. The dial features a clear resin composition with rhodium-plated indices and hands. On the secondary market, this model typically trades between $45,000 and $65,000 depending on condition and completeness. A notable production detail is the use of titanium H-shaped screws to secure the sapphire plates, ensuring structural integrity despite the brittle nature of the primary case material.", "score": 82}, {"slug": "philippe-dufour-simplicity-platinum-37mm", "brand": "Philippe Dufour", "ref": "Simplicity", "model": "Simplicity", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/philippe-dufour-simplicity-platinum-37mm", "description": "The Philippe Dufour Simplicity in platinum was initially produced between 2000 and approximately 2012, with a limited \"20th Anniversary\" run announced in 2020. Collectors prioritize this reference for its hand-finished Caliber 11 movement, which features internal angles and bridge work executed to historical Vallée de Joux standards. The platinum case was typically offered in 34mm or 37mm diameters, often paired with a silver guilloché dial or a white lacquer dial with Roman numerals. Total production across all metals is estimated at fewer than 250 units, making the platinum version rare. On the secondary market, prices currently range from $700,000 to over $1,000,000 depending on case size and provenance. A notable auction result occurred in 2020 when a 37mm 20th Anniversary model in platinum, numbered 00/20, sold for approximately $1.5 million, reflecting the high demand for these later production pieces.", "score": 82}, {"slug": "george-daniels-millennium", "brand": "George Daniels", "ref": "MILLENNIUM", "model": "Millennium", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/george-daniels-millennium", "score": 70}, {"slug": "hublot-301", "brand": "Hublot", "ref": "301", "model": "Big Bang 44mm All Black II", "case_material": "Black Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-301", "description": "The Hublot Big Bang 44mm All Black II (Reference 301.CI.1110.CI) was released in 2008 as a limited edition of 500 pieces, following the original 2006 All Black concept. This reference is no longer in production. Collectors value the model for its monochromatic aesthetic and full ceramic construction, featuring a 44mm micro-blasted black ceramic case, bezel, and an integrated ceramic link bracelet. It is powered by the HUB4100 self-winding chronograph movement, which provides a 42-hour power reserve. The dial utilizes matte black appliques and hands, prioritizing the \"invisible visibility\" design philosophy over legibility. On the secondary market, this reference typically trades between $7,000 and $10,000 depending on condition and the presence of original packaging. While the standard Big Bang often features rubber straps, the All Black II is noted for its factory-issued ceramic bracelet, which remains a distinguishing feature for collectors of early Jean-Claude Biver era designs.", "score": 70}, {"slug": "hublot-1432xxx", "brand": "Hublot", "ref": "1432XXX", "model": "Big Bang Unico Chronograph Rainbow 42mm", "case_material": "18k Rose Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-1432xxx", "description": "The Hublot Big Bang Unico Chronograph Rainbow 42mm (Reference 441.OX.9910.LR.0999) entered production around 2019 and remains a centerpiece of the brand’s contemporary catalog. Collectors target this reference for its complex gem-setting, featuring 166 colored gemstones on the 18k King Gold case and 108 gemstones on the bezel, including rubies, pink sapphires, amethysts, and blue topazes. It utilizes the in-house HUB1280 Unico manufacture movement, a self-winding flyback chronograph with a 72-hour power reserve and a visible column wheel on the dial side. The 42mm diameter offers a more wearable profile than the original 45mm version. On the secondary market, this model typically trades between $65,000 and $85,000 depending on condition and completeness. A notable production detail is the \"King Gold\" alloy, which uses platinum to ensure the red hue remains stable over years of exposure to the elements.", "score": 70}, {"slug": "hublot-1406xxx", "brand": "Hublot", "ref": "1406XXX", "model": "Big Bang Unico Chronograph Rainbow 45mm", "case_material": "18k King Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-1406xxx", "description": "The Hublot Big Bang Unico Chronograph Rainbow 45mm (Reference 411.OX.9910.LR.0999) was introduced in 2017 and remains a part of the brand’s high-jewelry catalog. Collectors target this reference for its 18k King Gold case, a proprietary alloy containing platinum, which is set with 176 colored gemstones including rubies, pink sapphires, amethysts, blue sapphires, blue topazes, tsavorites, and yellow and orange sapphires. The bezel features an additional 48 baguette-cut stones in a gradient pattern. It utilizes the in-house Caliber HUB1242 Unico movement, an automatic flyback chronograph with a 72-hour power reserve and a visible column wheel on the dial side. On the secondary market, this model typically commands prices between $65,000 and $85,000 depending on condition and completeness. A notable production detail is the \"One Click\" strap system, allowing for rapid changes between the multicolored alligator leather and rubber straps provided with the watch.", "score": 70}]}