{"reference": {"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."}, "lang": "fr", "url": "https://mostexpensivewatches.net/fr/alternatives/hublot-915", "reference_url": "https://mostexpensivewatches.net/fr/reference/hublot-915", "review_url": "https://mostexpensivewatches.net/fr/review/hublot-915", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "auction_comp_count": 2, "alternatives": [{"reference": {"slug": "hublot-419", "brand": "Hublot", "ref": "419", "model": "Big Bang Tourbillon Only Watch", "case_material": "Polished Sapphire", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-419", "description": "The Hublot Big Bang Tourbillon Only Watch 2021 (Reference 419.JX.0108.RT.OW21) is a unique piece produced specifically for the 2021 Only Watch charity auction. Collectors prioritize this reference for its transparent 45mm case constructed from polished sapphire and its orange-tinted sapphire components, including the bridges of the manufacture HUB6035 automatic tourbillon movement. The caliber features a micro-rotor visible at the 12 o’clock position and a power reserve of 72 hours. As a unique piece, it is not in serial production. While the retail estimate was significantly lower, the watch achieved a final hammer price of 320,000 CHF at the Christie’s Geneva auction in November 2021. On the secondary market, such unique sapphire tourbillons typically command prices in the mid-to-high six-figure range, though availability is restricted by its one-of-one status. This reference represents Hublot’s technical focus on material transparency and integrated movement architecture."}, "score": 28, "why_compare": "Same hublot collector universe; shared search intent: hublot, only; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-419", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-419"}, {"reference": {"slug": "hublot-big-bang-sapphire", "brand": "Hublot", "ref": "411.JB", "model": "Big Bang Sapphire All Black", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/hublot-big-bang-sapphire", "description": "Released in 2016 to commemorate the 10th anniversary of the All Black concept, the Hublot Big Bang Unico Sapphire All Black (reference 411.JB.4901.RT) was produced as a limited edition of 500 pieces. It is no longer in production. Collectors value this reference for its technical construction, featuring a case, bezel, and case back machined from blocks of smoked black sapphire crystal. It houses the in-house HUB1242 Unico movement, an automatic flyback chronograph with a column wheel visible through the skeletonized dial. The watch represents a significant milestone in the brand's history of material innovation, specifically the industrialization of shaped sapphire. On the secondary market, this reference typically trades between $45,000 and $65,000 depending on condition and provenance. While most Big Bang models utilize ceramic or gold, this specific 45mm variant remains a primary example of the brand’s transparent monochromatic design language."}, "score": 20, "why_compare": "Same hublot collector universe; shared search intent: hublot, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-big-bang-sapphire", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-big-bang-sapphire"}, {"reference": {"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": 20, "why_compare": "Same hublot collector universe; shared search intent: hublot, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-big-bang-unico-sapphire-45mm", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-big-bang-unico-sapphire-45mm"}, {"reference": {"slug": "hublot-905", "brand": "Hublot", "ref": "905", "model": "MP-05 LaFerrari Sapphire", "case_material": "Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-905", "description": "The Hublot MP-05 LaFerrari Sapphire (Reference 905.JX.0001.RT) was released in 2016 as a limited edition of 20 pieces, following the original 2013 titanium version. This reference is valued for its technical architecture, featuring the manual-wind HUB9005.H1.PN.1JN movement with a record-breaking 50-day power reserve achieved through 11 series-coupled barrels. The case is constructed from seven blocks of polished sapphire crystal, requiring over 600 hours of machining to achieve its complex, car-engine-inspired shape. It utilizes a vertical tourbillon and digital display cylinders for time and power reserve. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often fluctuating between $300,000 and $550,000 depending on provenance. A notable production detail is the inclusion of a dedicated electronic screwdriver tool modeled after Formula 1 tire changers, which is required to wind the movement and set the time."}, "score": 20, "why_compare": "Same hublot collector universe; shared search intent: hublot, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-905", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-905"}, {"reference": {"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": 20, "why_compare": "Same hublot collector universe; shared search intent: hublot, sapphire; similar sapphire case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-spirit-of-big-bang-sapphire-42mm", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-spirit-of-big-bang-sapphire-42mm"}, {"reference": {"slug": "hublot-305", "brand": "Hublot", "ref": "305", "model": "Big Bang Tourbillon", "case_material": "Platinum and Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-305", "description": "The Hublot Big Bang Tourbillon 305, specifically the reference 305.PX.0009.GR or its ceramic counterparts, was introduced around 2007 as part of the brand’s early push into high-complication watchmaking. Collectors target this reference for the HUB 1000B caliber, a manual-wind manufacture movement featuring a five-day power reserve and a prominent tourbillon carriage at the six o'clock position. The case construction utilizes the signature \"sandwich\" design, often pairing a 44mm platinum or black ceramic chassis with a carbon fiber or matte dial. This model represents the era when Hublot transitioned from a design-focused brand to a serious manufacture. On the secondary market, these pieces typically trade in the $40,000 to $65,000 range depending on case material and condition. A notable production detail is the limited nature of the platinum editions, which were produced in significantly smaller quantities than the standard gold or ceramic variants."}, "score": 17, "why_compare": "Same hublot collector universe; shared search intent: hublot, tourbillon.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 3, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-305", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-305"}, {"reference": {"slug": "hublot-mp-06", "brand": "Hublot", "ref": "MP-06", "model": "Champion 90 Senna Tourbillon", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-mp-06", "description": "The Hublot MP-06 Senna Act IV Titanium (reference 906.NX.0129.VR.AES13) was released in 2013 as a limited edition of 41 pieces, representing the fourth collaboration between Hublot and the Instituto Ayrton Senna. This reference is no longer in production. Collectors value the model for its manual-wind HUB6300 caliber, a skeletonized tourbillon movement comprising 237 components with a five-day power reserve. The 45mm tonneau-shaped case is constructed from grade 5 titanium, featuring a sapphire dial with the Senna logo at the 9 o’clock position and yellow accents on the hands and markers. On the secondary market, this reference typically commands prices in the mid-to-high five-figure range, often appearing between $60,000 and $90,000 depending on condition and provenance. This specific titanium variant was produced alongside King Gold and black PVD titanium versions, each also limited to 41 pieces to reflect Senna's 41 Grand Prix victories."}, "score": 17, "why_compare": "Same hublot collector universe; shared search intent: hublot, tourbillon.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-mp-06", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-mp-06"}, {"reference": {"slug": "hublot-mp-09-tourbillon-bi-axis-carbon", "brand": "Hublot", "ref": "909.QDC.1120.RX", "model": "MP-09 Tourbillon Bi-Axis", "case_material": "3D Carbon", "url": "https://mostexpensivewatches.net/reference/hublot-mp-09-tourbillon-bi-axis-carbon", "description": "The Hublot MP-09 Tourbillon Bi-Axis 3D Carbon (909.QDC.1120.RX) was introduced in 2017 as part of the Manufacture Piece collection and remains in limited production through various color iterations. This reference is distinguished by its multi-layered 3D carbon case, which utilizes a thin-ply carbon fiber weave to achieve a lightweight, architectural geometry. It houses the manual-wind caliber HUB9009.H1.RA, featuring a five-day power reserve and a bi-axial tourbillon that rotates on two axes at the 6 o'clock position. Collectors value this model for its technical complexity and the specific case design that drops away at the bottom to provide an unobstructed view of the escapement. On the secondary market, this reference typically commands prices in the low-to-mid six-figure range, often between $110,000 and $160,000. Production is strictly limited, with the initial black 3D carbon version restricted to 50 pieces globally."}, "score": 17, "why_compare": "Same hublot collector universe; shared search intent: hublot, tourbillon.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-mp-09-tourbillon-bi-axis-carbon", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-mp-09-tourbillon-bi-axis-carbon"}, {"reference": {"slug": "zenith-04", "brand": "Zenith", "ref": "04", "model": "Defy Double Tourbillon Felipe Pantone Only Watch 2021", "case_material": "Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/zenith-04", "description": "The Zenith Defy Double Tourbillon Felipe Pantone Only Watch 2021 is a unique piece produced specifically for the 2021 Only Watch charity auction. This reference features a 46mm case constructed entirely from transparent sapphire crystal, housing the El Primero 9020 automatic movement. This caliber includes two independent tourbillons: one rotating every 60 seconds for timekeeping and another rotating every five seconds for the 1/100th-of-a-second chronograph. Collectors value the collaboration with artist Felipe Pantone, which incorporates an interference colors finish on the movement bridges and a rainbow-gradient dial achieved through PVD treatment. As a one-of-one production, it does not have a standard secondary market price range, though it achieved a final hammer price of 480,000 CHF at the Christie’s 2021 auction. This specific unit remains the only sapphire-cased Double Tourbillon featuring Pantone’s signature optical art aesthetic and multi-colored sapphire indices."}, "score": 17, "why_compare": "Shared search intent: only, sapphire; similar sapphire case profile.", "listing_stats": {"count": 28, "median": 6262.5, "low": 3150.0, "high": 15000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_8379639464115", "title": "Zenith Zenith DEFY Skyline C.X Ceramic Edition (Pre-owned)", "brand": "Zenith", "model": "Zenith DEFY Skyline C.X Ceramic Edition (Pre-owned)", "reference": "—", "price_usd": 15000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "High-Tech Ceramic", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "collective-horology", "merchant_name": "Collective Horology", "image_url": "https://cdn.shopify.com/s/files/1/0559/0623/8643/files/PB210230-2.jpg?v=1763862204", "detail_url": "https://mostexpensivewatches.net/listing/h_8379639464115", "buy_url": "https://mostexpensivewatches.net/out/h_8379639464115", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/fr/review/zenith-04", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/zenith-04"}, {"reference": {"slug": "hublot-507", "brand": "Hublot", "ref": "507", "model": "Classic Fusion Takashi Murakami All Black", "case_material": "Black Ceramic", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/hublot-507", "description": "Released in early 2021, the Hublot Classic Fusion Takashi Murakami All Black (reference 507.CX.9000.RX.TAK21) was a limited edition of 200 pieces and is no longer in production. Collectors value this reference for its integration of Murakami’s \"Smiling Flower\" motif, featuring a three-dimensional dial where the petals rotate via a ball-bearing system powered by the movement. The 45mm case is constructed from polished black ceramic, housing the Unico manufacture caliber HUB1214, an automatic movement with a 72-hour power reserve. The dial is set with 456 black diamonds across the petals and 107 black diamonds on the face. On the secondary market, this reference typically trades between $50,000 and $80,000. This model marked the first collaboration between Hublot and Murakami, preceding the Sapphire and Rainbow iterations. A unique \"All Black\" version was notably auctioned at Only Watch 2021, featuring a sapphire case and colored gemstones."}, "score": 15, "why_compare": "Same hublot collector universe; shared search intent: hublot, murakami.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-507", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-507"}, {"reference": {"slug": "richard-mille-rm-56-02", "brand": "Richard Mille", "ref": "RM 56-02", "model": "Sapphire Tourbillon", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm-56-02", "description": "The Richard Mille RM 56-02 Sapphire Tourbillon was released in 2014 as a limited edition of 10 pieces. This reference is distinguished by its tripartite case milled entirely from solid blocks of synthetic sapphire, a process requiring 960 hours of machining per case. It utilizes the manual-wind Caliber RM56-02, which features a baseplate crafted from grade 5 titanium suspended within the sapphire case by a functional 0.35mm cable-and-pulley system. This architecture creates a visual effect of the movement floating in space while providing enhanced shock resistance. Collectors value the reference for its transparency and its role in evolving the brand’s technical research into sapphire applications. On the secondary market, the RM 56-02 typically commands prices in the $3,500,000 to $4,500,000 range. A unique prototype version of this model was notably produced for the 2015 Only Watch charity auction."}, "score": 15, "why_compare": "Shared search intent: sapphire, tourbillon; similar sapphire case profile.", "listing_stats": {"count": 1, "median": 2200000.0, "low": 2200000.0, "high": 2200000.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_8029481337154", "title": "Richard Mille 53-02 Tourbillon Sapphire", "brand": "Richard Mille", "model": "53-02 Tourbillon Sapphire", "reference": "LTINC202288", "price_usd": 2200000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 50.0, "movement": "Automatic", "complications": ["Tourbillon"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/richard-mille-rm-53-02-tourbillon-sapphire-1222684736-800x1197_80567c2a-d272-481e-9692-800fe6d6efa2.jpg?v=1669756619", "detail_url": "https://mostexpensivewatches.net/listing/h_8029481337154", "buy_url": "https://mostexpensivewatches.net/out/h_8029481337154", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/fr/review/richard-mille-rm-56-02", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/richard-mille-rm-56-02"}, {"reference": {"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": 11, "why_compare": "Same hublot collector universe; shared search intent: hublot.", "listing_stats": {"count": 2, "median": 6875.0, "low": 6150.0, "high": 7600.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_6858393321547", "title": "Hublot Hublot Big Bang Evolution Carbon Chronograph 301.QX.1740.GR", "brand": "Hublot", "model": "Hublot Big Bang Evolution Carbon Chronograph 301.QX.1740.GR", "reference": "1740.", "price_usd": 7600.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Carbon TPT", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "hodinkee", "merchant_name": "Hodinkee Shop", "image_url": "https://cdn.shopify.com/s/files/1/0146/0732/files/Hublot-Big-Bang-Evolution-301-QX-1740-GR-10-10-HUB-LF7HPQ-26b224a0aba2_25984b90-de0a-46d3-88fe-3053cccb2e19.jpg?v=1711643945", "detail_url": "https://mostexpensivewatches.net/listing/h_6858393321547", "buy_url": "https://mostexpensivewatches.net/out/h_6858393321547", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/fr/review/hublot-301", "alternatives_url": "https://mostexpensivewatches.net/fr/alternatives/hublot-301"}]}