{"listing": {"id": "h_8029560996162", "title": "Vacheron Constantin Patrimony Perpetual Calendar Ultra-Thin Ref. # 43175/000R-B519", "brand": "Vacheron Constantin", "model": "Patrimony Perpetual Calendar Ultra-Thin Ref. # 43175/000R-B519", "reference": "43175/000R-", "price_usd": 80945.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 41.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/vacheron-constantin-patrimony-perpetual-calendar-ultra-thin-ref-43175000r-b519-luxury-953_2048x_c03a55a1-848b-4f65-b94c-e0a70f964528.jpg?v=1669757524", "detail_url": "https://mostexpensivewatches.net/listing/h_8029560996162", "buy_url": "https://mostexpensivewatches.net/out/h_8029560996162", "available": false}, "lang": "en", "url": "https://mostexpensivewatches.net/listing/h_8029560996162", "alternatives_url": "https://mostexpensivewatches.net/api/v1/listing/h_8029560996162/alternatives", "lower_priced": [{"id": "h_8029555196226", "title": "Vacheron Constantin Patrimony Perpetual Calendar Ultra-Thin Ref. # 43175/000R-B343", "brand": "Vacheron Constantin", "model": "Patrimony Perpetual Calendar Ultra-Thin Ref. # 43175/000R-B343", "reference": "43175/000R-", "price_usd": 60690.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 41.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/vacheron-constantin-patrimony-perpetual-calendar-ultra-thin-ref-43175000r-b343-luxury-602_2048x_54a02f22-fb4e-436b-9b2d-3da97fbbfbc4.jpg?v=1669757463", "detail_url": "https://mostexpensivewatches.net/listing/h_8029555196226", "buy_url": "https://mostexpensivewatches.net/out/h_8029555196226", "available": false}], "similar_listings": [], "cohort": {"count": 2, "median": 70817.5, "low": 60690.0, "high": 80945.0, "brands": 1, "merchants": 1, "listing_price": 80945.0, "position": "highest", "delta_vs_median_pct": 14.3}, "reference": {"slug": "vacheron-constantin-patrimony", "ref": "43175", "brand": "Vacheron Constantin", "model": "Patrimony Perpetual Calendar", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-patrimony", "alternatives_url": "https://mostexpensivewatches.net/api/alternatives/vacheron-constantin-patrimony"}, "cross_reference_alternatives": [{"reference": {"slug": "vacheron-constantin-4300v", "brand": "Vacheron Constantin", "ref": "4300V", "model": "Overseas Perpetual Calendar Ultra-Thin Skeleton", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-4300v", "description": "The Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton (Ref. 4300V/120R-B547) was introduced in 2020 and remains in current production. Collectors prioritize this reference for the Calibre 1120 QPSQ/1, a skeletonized, self-winding movement measuring 4.05mm thick within an 8.1mm pink gold case. The open-worked dial features 18k pink gold hour markers and circular-grained finishes, maintaining a 50-meter water resistance rating despite its slim profile. It includes the brand’s proprietary interchangeable strap system with a gold bracelet, rubber, and leather options. On the secondary market, this model typically trades in the $140,000 to $180,000 range, though prices fluctuate based on inventory. A notable production detail is its 2020 Grand Prix d’Horlogerie de Genève (GPHG) win in the Calendar and Astronomy category, which solidified its status as a technical benchmark for the Overseas collection."}, "score": 24, "why_compare": "Same vacheron constantin collector universe; shared search intent: 18k, calendar; similar gold case profile.", "listing_stats": {"count": 6, "median": 222925.0, "low": 136000.0, "high": 390000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_8029593764162", "title": "Vacheron Constantin Overseas Perpetual Calendar Ultra-Thin Skeleton Ref. # 4300V/120R-B547", "brand": "Vacheron Constantin", "model": "Overseas Perpetual Calendar Ultra-Thin Skeleton Ref. # 4300V/120R-B547", "reference": "4300V/120R-", "price_usd": 390000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 41.5, "movement": "Automatic", "complications": ["Perpetual Calendar", "Skeletonized"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/vacheron-constantin-overseas-perpetual-calendar-ultra-thin-skeleton-ref-4300v120r-b547-481_2048x_00ae214d-321b-404f-965a-a7e41a8082a0.jpg?v=1669757848", "detail_url": "https://mostexpensivewatches.net/listing/h_8029593764162", "buy_url": "https://mostexpensivewatches.net/out/h_8029593764162", "available": false}, "auction_comp_count": 3, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-4300v", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-4300v"}, {"reference": {"slug": "vacheron-constantin-43031", "brand": "Vacheron Constantin", "ref": "43031", "model": "Patrimony Perpetual Calendar", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-43031", "description": "The Vacheron Constantin reference 43031 in 18k yellow gold was produced from approximately 1983 until 2002. Collectors prioritize this reference for its ultra-thin caliber 1120/1, which utilizes a Jaeger-LeCoultre 920 base movement featuring a full-sized rotor with a beryllium rail. The 36mm case design is characterized by stepped lugs and a slim profile of roughly 7.5mm. The dial typically features \"sigma\" markings at six o'clock, indicating the use of solid gold indices, and displays the day, date, month, and moon phase without a leap year indicator. As of 2024, secondary market prices generally range between $35,000 and $55,000 depending on condition and the presence of original accessories. A notable variant includes the skeletonized reference 43032, though the 43031 remains the foundational perpetual calendar of the brand’s post-Quartz Crisis era. One example sold at Phillips in 2023 for approximately $40,000."}, "score": 24, "why_compare": "Same vacheron constantin collector universe; shared search intent: 18k, calendar; similar gold case profile.", "listing_stats": {"count": 9, "median": 32850.0, "low": 17650.0, "high": 90740.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_8029566435650", "title": "Vacheron Constantin Patrimony Perpetual Calendar Ultra-Thin - Collection Excellence Platine Ref. # 43175/000P-B190", "brand": "Vacheron Constantin", "model": "Patrimony Perpetual Calendar Ultra-Thin - Collection Excellence Platine Ref. # 43175/000P-B190", "reference": "43175/000P-", "price_usd": 90740.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "case_size_mm": 41.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/vacheron-constantin-patrimony-perpetual-calendar-ultra-thin-collection-excellence-platine-348_2048x_dd3360a1-e1f2-4d44-937a-4db06b41e88a.jpg?v=1669757583", "detail_url": "https://mostexpensivewatches.net/listing/h_8029566435650", "buy_url": "https://mostexpensivewatches.net/out/h_8029566435650", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-43031", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-43031"}, {"reference": {"slug": "vacheron-constantin-49005", "brand": "Vacheron Constantin", "ref": "49005", "model": "Patrimony Perpetual Calendar Chronograph", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-49005", "description": "The Vacheron Constantin Patrimony Perpetual Calendar Chronograph reference 49005 was produced from approximately 1992 until the early 2000s. Collectors target this reference as the brand’s first automatic perpetual calendar chronograph, marking a significant technical transition for the manufacture. The 38mm 18k yellow gold case houses the caliber 1136 QP, which is based on the Frédéric Piguet 1185 integrated chronograph movement. The dial features four sub-dials, including a moon phase at 6 o'clock and a leap year indicator integrated into the month register at 12 o'clock. Production numbers were limited, with estimates suggesting fewer than 500 units were made in yellow gold. On the secondary market, this reference typically trades in the $35,000 to $50,000 range. A notable variant is the platinum version with a blue dial, which commands a significant premium over the yellow gold models at auction."}, "score": 24, "why_compare": "Same vacheron constantin collector universe; shared search intent: 18k, calendar; similar gold case profile.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-49005", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-49005"}, {"reference": {"slug": "vacheron-constantin-43045", "brand": "Vacheron Constantin", "ref": "43045", "model": "American 1921 Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-43045", "description": "The Vacheron Constantin American 1921 Perpetual Calendar reference 43045 in platinum was produced during the late 1990s and early 2000s, predating the current generation of Historiques models. Collectors prioritize this reference for its combination of the 45-degree offset \"driver's\" dial layout and the ultra-thin Caliber 1120 QP, an automatic movement based on the Jaeger-LeCoultre 920 ebauche. The 36mm cushion-shaped case is constructed from 950 platinum and features a silvered dial with painted Arabic numerals and four sub-dials for the perpetual calendar functions. Due to its limited production run and the technical complexity of fitting a perpetual calendar into the asymmetrical American 1921 case design, the reference is rarely seen on the secondary market. Current market valuations typically fall within the $60,000 to $90,000 range. A notable production detail is the use of the Maltese cross-shaped rotor, visible through the sapphire caseback."}, "score": 21, "why_compare": "Same vacheron constantin collector universe; shared search intent: calendar, constantin.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-43045", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-43045"}, {"reference": {"slug": "vacheron-constantin-30020", "brand": "Vacheron Constantin", "ref": "30020", "model": "Patrimony Minute Repeater Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-30020", "description": "The Vacheron Constantin Reference 30020 was produced between approximately 1992 and 2005, serving as a successor to the 30010. Collectors value this reference for its combination of a minute repeater and a perpetual calendar within a 37mm platinum case. It houses the manual-wind Calibre 1755, a movement measuring only 3.3mm thick, which was developed during the brand's transition toward modern high-complication manufacturing. The dial features a traditional four-subdial layout with a moon phase at 6 o'clock and a leap year indicator. Production was limited, with estimates suggesting approximately 200 units were made across all metals, making the platinum version particularly scarce. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often between $250,000 and $450,000 depending on provenance. A notable auction result occurred in 2019 when a platinum example sold for approximately $337,000."}, "score": 21, "why_compare": "Same vacheron constantin collector universe; shared search intent: calendar, constantin.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-30020", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-30020"}, {"reference": {"slug": "vacheron-constantin-80172", "brand": "Vacheron Constantin", "ref": "80172", "model": "Traditionnelle Minute Repeater Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-80172", "description": "The Vacheron Constantin Traditionnelle Minute Repeater Perpetual Calendar reference 80172/000P-9589 was introduced around 2011 and is no longer in regular production. Collectors prioritize this reference for the Calibre 2755, a manual-wind movement comprising 602 components that integrates a minute repeater, a perpetual calendar, and a tourbillon with a characteristic Maltese cross carriage. The 44mm platinum case features a silvered opaline dial with a power reserve indicator located on the reverse side to maintain dial symmetry. This reference represents a high-complication peak for the brand’s contemporary lineup, utilizing a centripetal governor for the repeater to ensure silent operation. On the secondary market, this model typically commands prices in the mid-to-high six-figure range, often between $350,000 and $500,000 depending on provenance. A notable 2019 auction result at Christie’s saw a platinum example achieve approximately $375,000, confirming its status as a significant investment-grade piece."}, "score": 21, "why_compare": "Same vacheron constantin collector universe; shared search intent: calendar, constantin.", "listing_stats": {"count": 4, "median": 617552.5, "low": 536845.0, "high": 651340.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_8029563191618", "title": "Vacheron Constantin Traditionnelle Grandes Complications Ref. # 80172/000P-9589", "brand": "Vacheron Constantin", "model": "Traditionnelle Grandes Complications Ref. # 80172/000P-9589", "reference": "80172/000P-9589", "price_usd": 651340.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "case_size_mm": 44.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/vacheron-constantin-traditionnelle-grandes-complications-ref-80172000p-9589-luxury-swiss-492_2048x_c3e75e07-b905-489a-993c-0eb0ef1737fe.jpg?v=1669757549", "detail_url": "https://mostexpensivewatches.net/listing/h_8029563191618", "buy_url": "https://mostexpensivewatches.net/out/h_8029563191618", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/vacheron-constantin-80172", "alternatives_url": "https://mostexpensivewatches.net/alternatives/vacheron-constantin-80172"}]}