{"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."}, "listing_stats": {"count": 4, "median": 617552.5, "low": 536845.0, "high": 651340.0, "brands": 1, "merchants": 1}, "listings": [{"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}, {"id": "h_8029590454594", "title": "Vacheron Constantin Traditionnelle Grandes Complications Ref. # 80172/000P-9505", "brand": "Vacheron Constantin", "model": "Traditionnelle Grandes Complications Ref. # 80172/000P-9505", "reference": "80172/000P-9505", "price_usd": 631805.0, "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-9505-luxury-swiss-546_2048x_f9321b64-9583-47bd-97aa-91c6493ec412.jpg?v=1669757813", "detail_url": "https://mostexpensivewatches.net/listing/h_8029590454594", "buy_url": "https://mostexpensivewatches.net/out/h_8029590454594", "available": false}, {"id": "h_8029586063682", "title": "Vacheron Constantin Traditionnelle Grandes Complications Ref. # 80172/000R-9300", "brand": "Vacheron Constantin", "model": "Traditionnelle Grandes Complications Ref. # 80172/000R-9300", "reference": "80172/000R-9300", "price_usd": 603300.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "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-80172000r-9300-luxury-swiss-243_2048x_ac229ca9-0b1e-40e5-92dc-9ee03a53aadb.jpg?v=1669757771", "detail_url": "https://mostexpensivewatches.net/listing/h_8029586063682", "buy_url": "https://mostexpensivewatches.net/out/h_8029586063682", "available": false}, {"id": "h_8029594714434", "title": "Vacheron Constantin Traditionnelle Grandes Complications Ref. # 80172/000R-B406", "brand": "Vacheron Constantin", "model": "Traditionnelle Grandes Complications Ref. # 80172/000R-B406", "reference": "80172/000R-", "price_usd": 536845.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "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-80172000r-b406-luxury-swiss-948_2048x_025f7a42-8f65-41c2-84f0-3f3299e9276a.jpg?v=1669757858", "detail_url": "https://mostexpensivewatches.net/listing/h_8029594714434", "buy_url": "https://mostexpensivewatches.net/out/h_8029594714434", "available": false}], "auction_lots": [{"slug": "vacheron-constantin-80172-2021", "brand": "Vacheron Constantin", "reference": "80172", "model": "Traditionnelle Minute Repeater Perpetual Calendar", "case_material": "Platinum", "hammer_usd": 310586, "year_sold": 2021, "venue": "Bonhams London", "lot_summary": "An exceptionally fine platinum manual wind minute repeating perpetual calendar wristwatch with tourbillon.", "source_url": "https://www.bonhams.com/stories/31934/", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/vacheron-constantin-80172-2021"}]}