{"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": 19, "median": 34500.0, "low": 15900.0, "high": 395000.0, "brands": 1, "merchants": 3}, "listings": [{"id": "h_7795000279249", "title": "Audemars Piguet Audemars Piguet Quantième Perpétuel 25562BA", "brand": "Audemars Piguet", "model": "Audemars Piguet Quantième Perpétuel 25562BA", "reference": "25562BA", "price_usd": 395000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 38.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/1_Audemars_Piguet_Quanti_me_Perp_tuel_25562BA.jpg?v=1787324180", "detail_url": 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