{"reference": {"slug": "jaeger-lecoultre-140", "brand": "Jaeger-LeCoultre", "ref": "140", "model": "Master Control Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/jaeger-lecoultre-140", "description": "The Jaeger-LeCoultre Master Control Perpetual Calendar reference 140.6.80.S in platinum was produced during the mid-to-late 1990s and early 2000s as part of the initial Master Control series. Collectors value this reference for its 37mm case diameter and the caliber 889/440/2, which features a perpetual calendar module designed by Kurt Klaus. The platinum variant is distinguished by its silver sunray dial, blued steel hands, and a moon phase indicator at the 12 o’clock position. Unlike modern iterations, this model utilizes a solid case back secured by four screws, bearing the gold Master Control medallion. On the secondary market, this reference typically trades between $18,000 and $24,000 depending on the presence of the original platinum deployant buckle and service history. A notable production detail is the limited nature of the platinum run compared to the more common steel and yellow gold versions."}, "listing_stats": {"count": 5, "median": 13000.0, "low": 5650.0, "high": 28500.0, "brands": 1, "merchants": 2}, "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}, {"id": "h_7350808543319", "title": "Jaeger-LeCoultre Jaeger-LeCoultre Master Control Perpetual Calendar Moonphase", "brand": "Jaeger-LeCoultre", "model": "Jaeger-LeCoultre Master Control Perpetual Calendar Moonphase", "reference": "40980086", "price_usd": 16950.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Moon Phase"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS10299_40980086_JAEGERLECOULTRE_MASTERPERPETUALCALENDAR_Q149242A-5.jpg?v=1736533390", "detail_url": "https://mostexpensivewatches.net/listing/h_7350808543319", "buy_url": "https://mostexpensivewatches.net/out/h_7350808543319", "available": false}, {"id": "h_7613418504279", "title": "Jaeger-LeCoultre Jaeger-LeCoultre Master Control Perpetual Calendar", "brand": "Jaeger-LeCoultre", "model": "Jaeger-LeCoultre Master Control Perpetual Calendar", "reference": "40980153", "price_usd": 13000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11865_40980153_JAEGERLECOULTRE_MASTERCONTROL_140.8.80.S--5.jpg?v=1775148495", "detail_url": "https://mostexpensivewatches.net/listing/h_7613418504279", "buy_url": "https://mostexpensivewatches.net/out/h_7613418504279", "available": false}, {"id": "h_7571568918615", "title": "Jaeger-LeCoultre Jaeger-LeCoultre Geomatic", "brand": "Jaeger-LeCoultre", "model": "Jaeger-LeCoultre Geomatic", "reference": "40980140", "price_usd": 8750.0, "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/AS11473_40980140_JAEGERLECOULTRE_GEOMATIC18KYG_E398-5.jpg?v=1771526040", "detail_url": "https://mostexpensivewatches.net/listing/h_7571568918615", "buy_url": "https://mostexpensivewatches.net/out/h_7571568918615", "available": false}, {"id": "h_8035551248706", "title": "Jaeger-LeCoultre Reverso Classic Small", "brand": "Jaeger-LeCoultre", "model": "Reverso Classic Small", "reference": "Q2618140", "price_usd": 5650.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/products/q2618140-jaeger-lecoultre-reverso-classic-small-jlc0213185.png?v=1669842326", "detail_url": "https://mostexpensivewatches.net/listing/h_8035551248706", "buy_url": "https://mostexpensivewatches.net/out/h_8035551248706", "available": false}], "auction_lots": [{"slug": "jaeger-lecoultre-140-6-80-2025", "brand": "Jaeger-LeCoultre", "reference": "140.6.80", "model": "Master Control Perpetual Calendar", "case_material": "Platinum", "hammer_usd": 16300, "year_sold": 2025, "venue": "Bonhams London", "lot_summary": "A fine and rare limited edition platinum automatic perpetual calendar wristwatch with moon phase, numbered 056/250.", "source_url": "https://www.bonhams.com/auctions/30658/lot/91/", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-140-6-80-2025"}, {"slug": "jaeger-lecoultre-140-2-87-2025", "brand": "Jaeger-LeCoultre", "reference": "140.2.87", "model": "Master Control Triple Calendar", "case_material": "18k Rose Gold", "hammer_usd": 5625, "year_sold": 2025, "venue": "Bonhams New York", "lot_summary": "An 18k rose gold automatic wristwatch with triple calendar, part of the Master Control 1000 Hours series.", "source_url": "https://www.bonhams.com/auctions/30658/lot/124/", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/jaeger-lecoultre-140-2-87-2025"}]}