{"reference": {"slug": "patek-philippe-5740-1g-nautilus-perpetual-calendar", "brand": "Patek Philippe", "ref": "5740/1G-001", "model": "Nautilus Perpetual Calendar", "case_material": "18k White Gold", "url": "https://mostexpensivewatches.net/reference/patek-philippe-5740-1g-nautilus-perpetual-calendar", "description": "The Patek Philippe Nautilus Perpetual Calendar 5740/1G-001 was introduced in 2018 as the first grand complication in the Nautilus collection and remains in current production. It features a 40mm case and integrated bracelet crafted from 18k white gold, housing the ultra-thin self-winding caliber 240 Q. This movement allows the case to maintain a profile of 8.42mm, making it the thinnest perpetual calendar in the brand's catalog. The dial is finished in blue sunburst with horizontal embossing and features three sub-dials indicating the day, date, month, leap year, 24-hour cycle, and moon phases. On the secondary market, this reference typically commands prices in the mid-to-high six-figure range, often fluctuating between $210,000 and $260,000 depending on condition and provenance. A notable production detail is the inclusion of the fold-over clasp with four independent catches for improved security compared to earlier Nautilus iterations."}, "listing_stats": {"count": 2, "median": 121000.0, "low": 57500.0, "high": 184500.0, "brands": 1, "merchants": 2}, "listings": [{"id": "h_15620353786239", "title": "Patek Philippe Patek Philippe Nautilus Perpetual Calendar | REF. 5740/1G-001 | 18k White Gold | Box & Papers | 2019", "brand": "Patek Philippe", "model": "Patek Philippe Nautilus Perpetual Calendar | REF. 5740/1G-001 | 18k White Gold | Box & Papers | 2019", "reference": "5740/1G-001", "price_usd": 184500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Moon Phase"], "merchant_slug": "watch-collectors-uk", "merchant_name": "Watch Collectors UK", "image_url": "https://cdn.shopify.com/s/files/1/0628/2218/7234/files/PatekPhilippe18KWhitegoldNautilusmoonphaseSecondhandWatchCollectors2.jpg?v=1776074169", "detail_url": "https://mostexpensivewatches.net/listing/h_15620353786239", "buy_url": "https://mostexpensivewatches.net/out/h_15620353786239", "alt_buy_urls": [{"partner": "goldsmiths", "name": "Goldsmiths", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_15620353786239/via/goldsmiths"}, {"partner": "selfridges", "name": "Selfridges", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_15620353786239/via/selfridges"}, {"partner": "farfetch", "name": "Farfetch", "region": "Global", "url": "https://mostexpensivewatches.net/out/h_15620353786239/via/farfetch"}], "available": true}, {"id": "h_7516691431511", "title": "Patek Philippe Patek Philippe Annual Calendar Moonphase", "brand": "Patek Philippe", "model": "Patek Philippe Annual Calendar Moonphase", "reference": "—", "price_usd": 57500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Annual Calendar", "Moon Phase"], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS11404_40930858_PATEKPHILIPPE_ANNUALCALENDARWGBLUEDIAL_5205G-013--6.jpg?v=1763910931", "detail_url": "https://mostexpensivewatches.net/listing/h_7516691431511", "buy_url": "https://mostexpensivewatches.net/out/h_7516691431511", "alt_buy_urls": [{"partner": "goldsmiths", "name": "Goldsmiths", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_7516691431511/via/goldsmiths"}, {"partner": "selfridges", "name": "Selfridges", "region": "UK", "url": "https://mostexpensivewatches.net/out/h_7516691431511/via/selfridges"}, {"partner": "farfetch", "name": "Farfetch", "region": "Global", "url": "https://mostexpensivewatches.net/out/h_7516691431511/via/farfetch"}], "available": true}], "auction_lots": []}