{"reference": {"slug": "jaeger-lecoultre-q1646420", "brand": "Jaeger-LeCoultre", "ref": "Q1646420", "model": "Duomètre à Sphérotourbillon", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jaeger-lecoultre-q1646420", "description": "The Jaeger-LeCoultre Duomètre à Sphérotourbillon reference Q1646420 was introduced in 2012 as a limited edition of 75 pieces. This platinum model features the manual-wind Calibre 382, which utilizes the Dual-Wing architecture to separate the timekeeping gear train from the complication power supply. Collectors value this reference for its multi-axis tourbillon that rotates every 30 seconds at a 20-degree tilt and its flyback seconds function, which allows for precise synchronization to a reference clock via a pusher at 2 o'clock. The 42mm case houses a silvered grained dial with a 24-hour GMT subdial and dual power reserve indicators. On the secondary market, this reference typically trades in the $130,000 to $170,000 range depending on condition and provenance. A notable production detail is that the movement plates and bridges are crafted from untreated German silver, a hallmark of the high-end Duomètre series."}, "listing_stats": {"count": 1, "median": 28500.0, "low": 28500.0, "high": 28500.0, "brands": 1, "merchants": 1}, "listings": [{"id": "h_7569231380567", "title": "Jaeger-LeCoultre Jaeger-LeCoultre Polaris Alarm 'First Series'", "brand": "Jaeger-LeCoultre", "model": "Jaeger-LeCoultre Polaris Alarm 'First Series'", "reference": "—", "price_usd": 28500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11460_40980127_JAEGERLECOULTRE_POLARISALARMFIRSTSERIESEUROPEANMARKET_E859--6.jpg?v=1770990941", "detail_url": "https://mostexpensivewatches.net/listing/h_7569231380567", "buy_url": "https://mostexpensivewatches.net/out/h_7569231380567", "available": false}], "auction_lots": [{"slug": "jaeger-lecoultre-q1646420-2017", "brand": "Jaeger-LeCoultre", "reference": "Q1646420", "model": "Duomètre à Sphérotourbillon", "case_material": "Platinum", "hammer_usd": 106250, "year_sold": 2017, "venue": "Phillips Geneva", "lot_summary": "A highly complicated modern masterpiece featuring a multi-axis tourbillon and the 'Dual-Wing' movement architecture.", "source_url": "https://www.phillips.com/detail/jaeger-lecoultre/CH080217/96", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-q1646420-2017"}]}