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On the secondary market, stainless steel 4178s occupy a broad price bracket ranging from $150,000 to over $300,000 depending on dial originality and case condition. A notable auction result occurred in 2016 when a steel example with a sector dial sold for over $330,000, reflecting the premium placed on non-precious metal configurations."}, "listing_stats": {"count": 25, "median": 42000.0, "low": 10500.0, "high": 433030.0, "brands": 1, "merchants": 7}, "listings": [{"id": "h_7686168445137", "title": "Vacheron Constantin Vacheron Constantin Overseas \"Everest\" Chronograph 5510V/000T-B923", "brand": "Vacheron Constantin", "model": "Vacheron Constantin Overseas \"Everest\" Chronograph 5510V/000T-B923", "reference": "5510V/000T-", "price_usd": 79500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Grade 5 Titanium", "case_size_mm": 42.5, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": 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"4178", "model": "Chronograph", "case_material": "Stainless Steel and Pink Gold", "hammer_usd": 56900, "year_sold": 2015, "venue": "Phillips Hong Kong", "lot_summary": "An early 1943 specimen featuring an unusual combination of a steel case band with pink gold lugs, crown, and pushers.", "source_url": "https://www.phillips.com/detail/vacheron-constantin/HK080115/145", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/vacheron-constantin-4178-2015"}, {"slug": "vacheron-constantin-4178-2017", "brand": "Vacheron Constantin", "reference": "4178", "model": "Chronograph", "case_material": "18k Yellow Gold", "hammer_usd": 50000, "year_sold": 2017, "venue": "Phillips Geneva", "lot_summary": "A classic yellow gold example of the reference 4178, distinguished by its iconic teardrop lugs and balanced dial symmetry.", "source_url": "https://www.phillips.com/detail/vacheron-constantin/CH080117/51", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/vacheron-constantin-4178-2017"}, {"slug": "vacheron-constantin-4178-2019", "brand": "Vacheron Constantin", "reference": "4178", "model": "Chronograph", "case_material": "18k Yellow Gold", "hammer_usd": 12500, "year_sold": 2019, "venue": "Christie's New York", "lot_summary": "One of the most celebrated vintage chronograph references, known for its large 36mm case and distinctive fancy lugs.", "source_url": "https://www.christies.com/en/lot/lot-6233335", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/vacheron-constantin-4178-2019"}]}