{"reference": {"slug": "audemars-piguet-25402sa", "brand": "Audemars Piguet", "ref": "25402SA", "model": "Royal Oak Two-Tone", "case_material": "Stainless Steel and 18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25402sa", "description": "The Audemars Piguet Royal Oak reference 25402SA was produced during the late 1970s and early 1980s as a mid-sized alternative to the \"Jumbo\" models. This reference features a 33mm case constructed from stainless steel and 18k yellow gold, housing the ultra-thin quartz Calibre 2502. Collectors value this reference for its historical role in the brand’s transition during the Quartz Crisis and its adherence to the original Gerald Genta design language, including the integrated bracelet and octagonal bezel. The dial typically features the \"Petite Tapisserie\" pattern with an AP logo positioned at 12 o'clock. On the secondary market, the 25402SA generally trades between $12,000 and $18,000 depending on condition and the presence of original paperwork. A notable production detail is that this reference was among the first Royal Oaks to utilize a quartz movement, marking a specific era of technical experimentation for the manufacturer."}, "listing_stats": {"count": 6, "median": 22925.0, "low": 3800.0, "high": 64000.0, "brands": 1, "merchants": 4}, "listings": [{"id": "h_15751409205593", "title": "Audemars Piguet Audemars Piguet Jumbo Royal Oak Yellow Gold 5402 Box and Papers", "brand": "Audemars Piguet", "model": "Audemars Piguet Jumbo Royal Oak Yellow Gold 5402 Box and Papers", "reference": "5402", "price_usd": 64000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-1033-Audemars-Piguet-Royal-Oak-Gold-Jumbo-5402BA_01.jpg?v=1756206810", "detail_url": "https://mostexpensivewatches.net/listing/h_15751409205593", "buy_url": "https://mostexpensivewatches.net/out/h_15751409205593", "available": false}, {"id": "h_6993651138643", "title": "Audemars Piguet Royal Oak | 5402SA | Stainless Steel & Yellow Gold", "brand": "Audemars Piguet", "model": "Royal Oak | 5402SA | Stainless Steel & Yellow Gold", "reference": "5402SA", "price_usd": 56000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "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/Audemars_Piguet_Royal_Oak_SA_5402_444_stainlesssteel_yellowgold_A_Collected_Man_London_00.jpg?v=1685006565", "detail_url": "https://mostexpensivewatches.net/listing/h_6993651138643", "buy_url": "https://mostexpensivewatches.net/out/h_6993651138643", "available": false}, {"id": "h_15751409074521", "title": "Audemars Piguet Audemars Piguet Jumbo Royal Oak Steel and  Gold Ref. 5402SA", "brand": "Audemars Piguet", "model": "Audemars Piguet Jumbo Royal Oak Steel and  Gold Ref. 5402SA", "reference": "5402SA", "price_usd": 29900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-1034-Audemars-Piguet-Royal-Oak-Steel-and-Gold_001.jpg?v=1756206807", "detail_url": "https://mostexpensivewatches.net/listing/h_15751409074521", "buy_url": "https://mostexpensivewatches.net/out/h_15751409074521", "available": false}, {"id": "h_7557082185815", "title": "Audemars Piguet Audemars Piguet Royal Oak Two-Tone Diamonds", "brand": "Audemars Piguet", "model": "Audemars Piguet Royal Oak Two-Tone Diamonds", "reference": "40990912", "price_usd": 15950.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS06524_40990912_AUDEMARSPIGUET_ROYALOAKDIAMONDDIAL_56303SA--5.jpg?v=1768328177", "detail_url": "https://mostexpensivewatches.net/listing/h_7557082185815", "buy_url": "https://mostexpensivewatches.net/out/h_7557082185815", "available": false}, {"id": "h_7640280793197", "title": "Audemars Piguet *Unpolished* 1990s Audemars Piguet Royal Oak Two-Tone Quartz (Ref. 56303SA) Champagne Diamond Dial", "brand": "Audemars Piguet", "model": "*Unpolished* 1990s Audemars Piguet Royal Oak Two-Tone Quartz (Ref. 56303SA) Champagne Diamond Dial", "reference": "56303SA", "price_usd": 13250.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img035672.jpg?v=1744918348", "detail_url": "https://mostexpensivewatches.net/listing/h_7640280793197", "buy_url": "https://mostexpensivewatches.net/out/h_7640280793197", "available": false}, {"id": "h_15751415955801", "title": "Audemars Piguet Audemars Piguet Royal Oak Two-Tone Ladies Watch", "brand": "Audemars Piguet", "model": "Audemars Piguet Royal Oak Two-Tone Ladies Watch", "reference": "W-932", "price_usd": 3800.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 25.0, "movement": "Automatic", "complications": [], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-932AudemarsPiguetRoyaloakladies_01.jpg?v=1756206958", "detail_url": "https://mostexpensivewatches.net/listing/h_15751415955801", "buy_url": "https://mostexpensivewatches.net/out/h_15751415955801", "available": false}], "auction_lots": [{"slug": "audemars-piguet-25402sa-2016", "brand": "Audemars Piguet", "reference": "25402SA", "model": "Royal Oak Two-Tone \"No. 1\"", "case_material": "Stainless Steel and 18k Yellow Gold", "hammer_usd": 41000, "year_sold": 2016, "venue": "Phillips Geneva", "lot_summary": "The first watch produced in the reference 25402SA run, bearing the coveted 'N°1' on its case back and used as a brand ambassador piece.", "source_url": "https://www.phillips.com/detail/audemars-piguet/CH080216/101", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/audemars-piguet-25402sa-2016"}]}