{"reference": {"slug": "jaeger-lecoultre-600", "brand": "Jaeger-LeCoultre", "ref": "600", "model": "Duometre a Chronographe", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jaeger-lecoultre-600", "description": "The Jaeger-LeCoultre Duometre à Chronographe reference Q6012420 in 18k pink gold was introduced in 2007 and remained a catalog staple until its recent discontinuation. Collectors prioritize this reference for the Calibre 380, which utilizes the Dual-Wing system featuring two independent power sources—one for timekeeping and one for the complications—to prevent torque fluctuations. The 42mm case houses a silvered grained dial with a foudroyante (lightning seconds) hand capable of measuring 1/6th of a second. This model represents the foundational entry in the Duometre line, marking a significant technical shift for the manufacture. On the secondary market, this reference typically trades between $28,000 and $38,000 depending on condition and completeness. A notable production detail is the movement’s construction from untreated German silver, which develops a distinct golden patina over time, differentiating it from standard rhodium-plated brass movements."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "jaeger-lecoultre-600-2-28-s-2014", "brand": "Jaeger-LeCoultre", "reference": "600.2.28.S", "model": "Duometre a Chronographe", "case_material": "18k Pink Gold", "hammer_usd": 23750, "year_sold": 2014, "venue": "Christie's New York", "lot_summary": "An 18k pink gold single button chronograph wristwatch with dual power reserve display and 1/6th of a second indication.", "source_url": "https://www.christies.com/en/lot/lot-5804237", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-600-2-28-s-2014"}]}