{"reference": {"slug": "audemars-piguet-26394or-code-11-59-perpetual-calendar", "brand": "Audemars Piguet", "ref": "26394OR.OO.D321CR.01", "model": "Code 11.59 Perpetual Calendar", "case_material": "18k Pink Gold", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26394or-code-11-59-perpetual-calendar", "description": "The Audemars Piguet Code 11.59 Perpetual Calendar reference 26394OR.OO.D321CR.01 was introduced in 2019 as part of the collection's initial launch and remains in the current catalog. This reference features an 18k pink gold case with a complex three-piece architecture, including an octagonal middle section and hollowed lugs. Collectors focus on the aventurine glass dial, which mimics a starry night sky and includes a photorealistic moon phase at 6 o’clock. It is powered by the self-winding Calibre 5134, an ultra-thin movement measuring 4.31mm in thickness that provides a 40-hour power reserve and displays the week of the year via a dedicated central hand. On the secondary market, this model typically trades in the $75,000 to $95,000 range. A notable production detail is that the aventurine dial requires a specific manufacturing process where copper inclusions are infused into glass to create the reflective effect."}, "listing_stats": {"count": 11, "median": 98500.0, "low": 15900.0, "high": 275000.0, "brands": 1, "merchants": 5}, "listings": [{"id": "h_7761593598161", "title": "Audemars Piguet Audemars Piguet Royal Oak Perpetual Calendar 26574BC.OO.1220BC.01 \"Qatar Edition\"", "brand": "Audemars Piguet", "model": "Audemars Piguet Royal Oak Perpetual Calendar 26574BC.OO.1220BC.01 \"Qatar Edition\"", "reference": "1220BC.01", "price_usd": 258000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 41.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/Audemars_Piguet_Royal_Oak_Perpetual_Calendar_26574BC.OO.1220BC.01_Qatar_Edition__1.jpg?v=1781902330", "detail_url": "https://mostexpensivewatches.net/listing/h_7761593598161", "buy_url": "https://mostexpensivewatches.net/out/h_7761593598161", "available": true}, {"id": "h_7739650343121", "title": "Audemars Piguet Audemars Piguet Royal Oak Perpetual Calendar 25810OR.OO.0944OR.01", "brand": "Audemars Piguet", "model": "Audemars Piguet Royal Oak Perpetual Calendar 25810OR.OO.0944OR.01", "reference": "0944OR.01", "price_usd": 245000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 39.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/Audemars_Piguet_Royal_Oak_Perpetual_Calendar_25810OR.OO.0944.01.jpg?v=1777670209", "detail_url": "https://mostexpensivewatches.net/listing/h_7739650343121", "buy_url": "https://mostexpensivewatches.net/out/h_7739650343121", "available": true}, {"id": "h_6894109393030", "title": "Audemars Piguet 18ct yellow gold Audemar Piguet ref. 5526 minute repeating perpetual calendar, astronomic 'Grande complication' pocket watch. Made 1964", "brand": "Audemars Piguet", "model": "18ct yellow gold Audemar Piguet ref. 5526 minute repeating perpetual calendar, astronomic 'Grande complication' pocket watch. 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"complications": ["Perpetual Calendar"], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/products/Audemars_Piguet_Royal_Oak_Perpetual_Calendar_Ultra-Thin_RD-2_26586IP_OO_1240IP_01_titanium_platinum_A_Collected_Man_London_00.jpg?v=1681389703", "detail_url": "https://mostexpensivewatches.net/listing/h_6968141906003", "buy_url": "https://mostexpensivewatches.net/out/h_6968141906003", "available": false}, {"id": "h_7298532147283", "title": "Audemars Piguet Perpetual Calendar | 25820ST | Stainless Steel", "brand": "Audemars Piguet", "model": "Perpetual Calendar | 25820ST | Stainless Steel", "reference": "25820ST", "price_usd": 98500.0, "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": "a-collected-man", "merchant_name": "A Collected 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1990s Audemars Piguet Quantième Perpetual Calendar 18K YG (Ref. 25661BA) \"Cal. 2120/2800\"", "brand": "Audemars Piguet", "model": "1990s Audemars Piguet Quantième Perpetual Calendar 18K YG (Ref. 25661BA) \"Cal. 2120/2800\"", "reference": "2120/2800", "price_usd": 22000.0, "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"], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img027741_4b559163-ad8d-4caa-b4b7-b9c2c7d09295.jpg?v=1716253079", "detail_url": "https://mostexpensivewatches.net/listing/h_7398738329709", "buy_url": "https://mostexpensivewatches.net/out/h_7398738329709", "available": false}, {"id": "h_15751393313113", "title": "Audemars Piguet Audemars Piguet Perpetual Calendar Yellow Gold Reference 5548", "brand": 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