{"reference": {"slug": "audemars-piguet-25548ba", "brand": "Audemars Piguet", "ref": "25548BA", "model": "Quantième Perpétuel (1990)", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25548ba", "description": "The Audemars Piguet Quantième Perpétuel reference 25548BA was produced between approximately 1982 and the early 1990s, representing a pivotal era for the brand’s ultra-thin complications. This 18k yellow gold model measures 36mm in diameter and is powered by the self-winding caliber 2120/2800, which is based on the Jaeger-LeCoultre 920 movement. Collectors value this reference for its historical significance in popularizing the perpetual calendar during the post-quartz crisis recovery and for its classic four-subdial layout without a leap year indicator. The case features a stepped bezel and short lugs, characteristic of the Quantième Perpétuel line's early design language. On the secondary market, this reference typically trades between $35,000 and $55,000 depending on condition and the presence of original paperwork. A notable production detail is that early examples often feature \"Audemars Piguet\" branding without the \"Automatic\" text on the dial, a variation sought by vintage enthusiasts."}, "listing_stats": {"count": 17, "median": 25500.0, "low": 15900.0, "high": 124500.0, "brands": 1, "merchants": 2}, "listings": [{"id": "h_6655329173587", "title": "Audemars Piguet Royal Oak | Quantième Perpétuel | Yellow Gold", "brand": "Audemars Piguet", "model": "Royal Oak | Quantième Perpétuel | Yellow Gold", "reference": "CSMYG_A1346", "price_usd": 124500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 40.0, "movement": "Automatic", "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-Gold-A-Collected-Man-London-7.jpg?v=1637752340", 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"case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/files/MicrosoftTeams-image_4_1.jpg?v=1709220675", "detail_url": "https://mostexpensivewatches.net/listing/h_7168794361939", "buy_url": "https://mostexpensivewatches.net/out/h_7168794361939", "available": false}, {"id": "h_6672840196179", "title": "Audemars Piguet Quantième Perpétuel | 5548 | Yellow Gold", "brand": "Audemars Piguet", "model": "Quantième Perpétuel | 5548 | Yellow Gold", "reference": "5548", "price_usd": 22500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 40.0, "movement": "Automatic", "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_Quantieme_Perpetual_5548_yellow_gold_A_Collected_Man_London9.jpg?v=1639755025", "detail_url": "https://mostexpensivewatches.net/listing/h_6672840196179", "buy_url": "https://mostexpensivewatches.net/out/h_6672840196179", "available": false}, {"id": "h_6958505885779", "title": "Audemars Piguet Quantième Perpétuel | 25657 | Rose Gold", "brand": "Audemars Piguet", "model": "Quantième Perpétuel | 25657 | Rose Gold", "reference": "25657", "price_usd": 22000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Moon Phase"], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/products/Audemars_Piguet_Quantieme_Perpetuel_BR_25657_rosegold_A_Collected_Man_London_00.jpg?v=1679322765", "detail_url": "https://mostexpensivewatches.net/listing/h_6958505885779", "buy_url": "https://mostexpensivewatches.net/out/h_6958505885779", "available": false}, {"id": "h_6861524435027", "title": "Audemars Piguet Quantième Perpétuel Automatique | 25657OR | Rose Gold", "brand": "Audemars Piguet", "model": "Quantième Perpétuel Automatique | 25657OR | Rose Gold", "reference": "25657OR", "price_usd": 22000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Perpetual Calendar", "Moon Phase"], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/products/Audemars_Piguet_Quantieme_Perpetuel_Automatique_25657OR_Rose_Gold_A_Collected_Man_London_CBLRG_A1595_09.jpg?v=1663059484", "detail_url": "https://mostexpensivewatches.net/listing/h_6861524435027", "buy_url": 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Gold Reference 5548", "brand": "Audemars Piguet", "model": "Audemars Piguet Perpetual Calendar Yellow Gold Reference 5548", "reference": "5548", "price_usd": 15900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 95.0, "movement": "Automatic", "complications": ["Perpetual Calendar"], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-1187-Audemars-Piguet-Quantieme-Perpetuel-ref-yellow-gold_001.jpg?v=1756206473", "detail_url": "https://mostexpensivewatches.net/listing/h_15751393313113", "buy_url": "https://mostexpensivewatches.net/out/h_15751393313113", "available": false}], "auction_lots": [{"slug": "ap-quantieme-perpetuel-1990", "brand": "Audemars Piguet", "reference": "25548BA", "model": "Quantième Perpétuel (1990)", "case_material": "18k Yellow Gold", "hammer_usd": 142000, "year_sold": 2023, "venue": "Phillips Geneva", "lot_summary": "1980s yellow-gold cushion-case perpetual calendar. Pre-Royal Oak Offshore era AP at the height of dress-watch sophistication.", "url": "https://mostexpensivewatches.net/auctions/ap-quantieme-perpetuel-1990"}]}