{"reference": {"slug": "jaeger-lecoultre-e168", "brand": "Jaeger-LeCoultre", "ref": "E168", "model": "Chronomètre Geophysic", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jaeger-lecoultre-e168", "description": "The Jaeger-LeCoultre Chronomètre Geophysic E168 was produced in 1958 to commemorate the International Geophysical Year and the brand’s 125th anniversary. Collectors value this reference for its chronometer-certified Calibre 478BWSbr movement, which features a hacking seconds mechanism, a Glucydur balance, and a swan-neck regulator. The 35mm stainless steel case includes an inner soft-iron cage for anti-magnetic protection up to 600 gauss. Production was limited, with approximately 1,038 steel units manufactured. The dial typically features luminous plots on the inner bezel or \"crosshair\" markings, though variations exist. On the secondary market, these watches generally trade in the $20,000 to $40,000 range depending on condition and dial configuration. A notable variant is the \"Publicité\" dial, which lacks the Geophysic branding, while a well-preserved example reached approximately $67,000 at a 2017 Phillips auction, reflecting the premium placed on original luminous material."}, "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-e168-2016", "brand": "Jaeger-LeCoultre", "reference": "E168", "model": "Chronomètre Geophysic", "case_material": "Stainless Steel", "hammer_usd": 69540, "year_sold": 2016, "venue": "Phillips Geneva", "lot_summary": "A legendary chronometer produced for the International Geophysical Year in 1958, this example was consigned by the family of the original owner.", "source_url": "https://www.phillips.com/detail/jaeger-lecoultre/CH080216/17", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-e168-2016"}, {"slug": "jaeger-lecoultre-e168-2025", "brand": "Jaeger-LeCoultre", "reference": "E168", "model": "Chronomètre Geophysic", "case_material": "Stainless Steel", "hammer_usd": 44450, "year_sold": 2025, "venue": "Phillips New York", "lot_summary": "A well-preserved example of the 1958 Geophysic, a model originally designed for scientists working in extreme magnetic environments.", "source_url": "https://www.phillips.com/detail/jaeger-lecoultre/NY080125/58", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-e168-2025"}, {"slug": "jaeger-lecoultre-e168-2023", "brand": "Jaeger-LeCoultre", "reference": "E168", "model": "Geophysic Chronometer", "case_material": "Stainless Steel", "hammer_usd": 35280, "year_sold": 2023, "venue": "Christie's Geneva", "lot_summary": "A very rare and highly attractive stainless steel chronometer wristwatch manufactured in 1958 for the International Geophysical Year.", "source_url": "https://www.christies.com/en/lot/lot-6451464", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-e168-2023"}]}