{"reference": {"slug": "vacheron-constantin-4737", "brand": "Vacheron Constantin", "ref": "4737", "model": "Cioccolatone", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/vacheron-constantin-4737", "description": "The Vacheron Constantin reference 4737, nicknamed the Cioccolatone due to its square, stepped case design, was produced during the 1950s. This reference is defined by its oversized 35mm by 43mm case and the caliber P453/3B manual-wind movement, though some examples house the automatic caliber 1019/1. Collectors prioritize the 4737 for its architectural mid-century aesthetic and extreme rarity in noble metals; while yellow gold is more common, platinum examples are exceptionally scarce, with fewer than ten estimated to exist. Dials often feature applied gold hour markers and a sub-seconds register at six o'clock. In the current secondary market, standard gold models command mid-five-figure sums, whereas platinum variants reach the low-to-mid six-figure range. A notable auction result occurred at Phillips in 2016, where a platinum 4737 with a diamond-set dial sold for approximately 598,000 CHF, illustrating the premium placed on this specific metal configuration."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "vacheron-constantin-4737-2021", "brand": "Vacheron Constantin", "reference": "4737", "model": "Cioccolatone", "case_material": "Platinum", "hammer_usd": 769104, "year_sold": 2021, "venue": "Phillips Geneva", "lot_summary": "A previously unknown and unique platinum example of the iconic square-shaped 'Cioccolatone' with a brushed case finish.", "source_url": "https://www.phillips.com/detail/vacheron-constantin/CH080221/167", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/vacheron-constantin-4737-2021"}]}