{"reference": {"slug": "patek-philippe-5270", "brand": "Patek Philippe", "ref": "5270", "model": "Perpetual Calendar Chronograph", "case_material": "18k White Gold", "url": "https://mostexpensivewatches.net/reference/patek-philippe-5270", "description": "The Patek Philippe Reference 5270 in 18k white gold was introduced in 2011 as the successor to the 5970, marking the first perpetual calendar chronograph from the manufacture to utilize a fully in-house movement, the Caliber CH 29-535 PS Q. The white gold model has seen three distinct series: the first series (5270G-001) lacked a tachymeter scale, the second series introduced the \"chin\" at six o'clock, and the third series (5270G-018 and 019) returned to a cleaner dial layout with a tachymeter scale. While the white gold versions are now discontinued in favor of platinum and yellow gold, they remain significant for transitioning the brand away from Lemania-based calibers. On the secondary market, these timepieces typically trade in the low-to-mid six-figure range, generally between $130,000 and $165,000 depending on the series and set completeness. The first series remains particularly notable for its short production run of approximately two years."}, "listing_stats": {"count": 11, "median": 178000.0, "low": 120000.0, "high": 340000.0, "brands": 1, "merchants": 5}, "listings": [{"id": "h_7690293248209", "title": "Patek Philippe Patek Philippe Perpetual Calendar Chronograph 5270P-014", "brand": "Patek Philippe", "model": "Patek Philippe Perpetual Calendar Chronograph 5270P-014", "reference": "5270P-014", "price_usd": 178000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "case_size_mm": 41.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Chronograph"], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/IMG_1955.jpg?v=1767993624", "detail_url": "https://mostexpensivewatches.net/listing/h_7690293248209", "buy_url": 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2010 Patek Philippe Perpetual Calendar Moonphase Chronograph (Ref. 5970P) Platinum W/ Box, Papers, & Accessories", "brand": "Patek Philippe", "model": "2010 Patek Philippe Perpetual Calendar Moonphase Chronograph (Ref. 5970P) Platinum W/ Box, Papers, & Accessories", "reference": "5970P", "price_usd": 320000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Chronograph", "Moon Phase"], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img018918.jpg?v=1687394899", "detail_url": "https://mostexpensivewatches.net/listing/h_7017226043501", "buy_url": "https://mostexpensivewatches.net/out/h_7017226043501", "available": false}, {"id": "h_7675309031511", "title": "Patek Philippe Patek Philippe Perpetual Calendar Chronograph", "brand": "Patek Philippe", 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Perpetual Calendar Moonphase Chronograph 18K YG (Ref. 5970J) W/ Box, Certificate of Origin, Accessories, & Recent Patek Philippe Service Receipt", "reference": "5970J", "price_usd": 250000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Chronograph", "Moon Phase"], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img044244copy.jpg?v=1781916264", "detail_url": "https://mostexpensivewatches.net/listing/h_8129437597805", "buy_url": "https://mostexpensivewatches.net/out/h_8129437597805", "available": false}, {"id": "h_7409608163415", "title": "Patek Philippe Patek Philippe Perpetual Calendar Moonphase Chronograph", "brand": "Patek Philippe", "model": "Patek Philippe Perpetual Calendar Moonphase Chronograph", "reference": "40930654", 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