{"reference": {"slug": "rolex-1803", "brand": "Rolex", "ref": "1803", "model": "Day-Date", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/rolex-1803", "description": "The Rolex Day-Date reference 1803 in 18k yellow gold was produced from approximately 1958 through 1977. Collectors prioritize this reference for its \"pie-pan\" dial, characterized by a recessed outer perimeter, and its acrylic crystal, which distinguish it from later sapphire-crystal models. Early iterations utilized the caliber 1555 movement, while later versions transitioned to the higher-beat caliber 1556; notably, neither movement features a quickset date function. The 36mm Oyster case features a fluted bezel and 20mm lug width. On the current secondary market, prices typically range from $10,000 to $18,000 depending on the presence of the hidden-clasp President bracelet and overall case thickness. A significant variant includes the \"Stella\" dial, featuring bright lacquered enamel, which can command prices exceeding $50,000 at auction. Condition evaluation focuses on the sharpness of the hallmarks and the degree of bracelet stretch."}, "listing_stats": {"count": 329, "median": 29850.0, "low": 6000.0, "high": 295000.0, "brands": 1, "merchants": 6}, "listings": [{"id": "h_9568077775170", "title": "Rolex Day-Date 36 36mm Green Ombré Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 36 36mm Green Ombré Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 36.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m128348rbr-0069.jpg?v=1718301425", "detail_url": "https://mostexpensivewatches.net/listing/h_9568077775170", "buy_url": "https://mostexpensivewatches.net/out/h_9568077775170", "available": true}, {"id": "h_15990601744729", "title": "Rolex Rolex Day-Date 18038 Petrol Blue Stella Dial in 18k Yellow Gold", "brand": "Rolex", "model": "Rolex Day-Date 18038 Petrol Blue Stella Dial in 18k Yellow Gold", "reference": "18038", "price_usd": 69900.0, "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-3536RolexDay-Date18038PetrolBlueStellaDial_402_1x1_cce050e1-4e0f-4e2c-bd25-7bed46531292.jpg?v=1774874159", "detail_url": "https://mostexpensivewatches.net/listing/h_15990601744729", "buy_url": "https://mostexpensivewatches.net/out/h_15990601744729", "available": true}, {"id": "h_7748646469841", "title": "Rolex Rolex Day-Date 18238 Pleiade Dial", "brand": "Rolex", "model": "Rolex Day-Date 18238 Pleiade Dial", "reference": "18238", "price_usd": 48500.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 36.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/Rolex_Day-Date_18238_Pleiade_Dial_1.jpg?v=1780083812", "detail_url": "https://mostexpensivewatches.net/listing/h_7748646469841", "buy_url": "https://mostexpensivewatches.net/out/h_7748646469841", "available": true}, {"id": "h_8011148296301", "title": "Rolex 1995 Rolex Day-Date 18K WG (Ref. 18239) Sapphire \"Teardrop\" Dial", "brand": "Rolex", "model": "1995 Rolex Day-Date 18K WG (Ref. 18239) Sapphire \"Teardrop\" Dial", "reference": "18239", "price_usd": 43500.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img041784.jpg?v=1773095279", "detail_url": "https://mostexpensivewatches.net/listing/h_8011148296301", "buy_url": "https://mostexpensivewatches.net/out/h_8011148296301", "available": true}, {"id": "h_16316749971801", "title": "Rolex Rolex Day-Date 18078 Green Khanjar Champagne Dial Bark Finish in 18k Yellow Gold", "brand": "Rolex", "model": "Rolex Day-Date 18078 Green Khanjar Champagne Dial Bark Finish in 18k Yellow Gold", "reference": "18078", "price_usd": 42900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "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-3784RolexDay-dateChampagnedial-GreenKhanjarref18078Barkfinish_016_1x1_3e63ea15-e033-4265-a5a3-95841c00d78a.jpg?v=1779449591", "detail_url": "https://mostexpensivewatches.net/listing/h_16316749971801", "buy_url": "https://mostexpensivewatches.net/out/h_16316749971801", "available": true}, {"id": "h_7872340230253", "title": "Rolex 1995 Rolex Day-Date 18K YG (Ref. 18378) Factory Ruby & Diamond Dial W/ Factory Ruby & Diamond Bezel", "brand": "Rolex", "model": "1995 Rolex Day-Date 18K YG (Ref. 18378) Factory Ruby & Diamond Dial W/ Factory Ruby & Diamond Bezel", "reference": "18378", "price_usd": 36500.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img039759_70454faa-4ed9-434e-a330-bff915150613.jpg?v=1762485090", "detail_url": "https://mostexpensivewatches.net/listing/h_7872340230253", "buy_url": "https://mostexpensivewatches.net/out/h_7872340230253", "available": true}, {"id": "h_7812460544109", "title": "Rolex 1981 Rolex Day-Date 18K WG (Ref. 18039) Blue Vignette Diamond Dial", "brand": "Rolex", "model": "1981 Rolex Day-Date 18K WG (Ref. 18039) Blue Vignette Diamond Dial", "reference": "18039", "price_usd": 32500.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img038940_46ca824e-8498-4869-abc2-23ecbf8c497e.jpg?v=1758158499", "detail_url": "https://mostexpensivewatches.net/listing/h_7812460544109", "buy_url": "https://mostexpensivewatches.net/out/h_7812460544109", "available": true}, {"id": "h_8110784970861", "title": "Rolex 1973 Rolex Day-Date 18K YG (Ref. 1803) Champagne \"Wide Boy\" Sigma Dial W/ Box & Papers", "brand": "Rolex", "model": "1973 Rolex Day-Date 18K YG (Ref. 1803) Champagne \"Wide Boy\" Sigma Dial W/ Box & Papers", "reference": "1973", "price_usd": 24750.0, "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": "craft-and-tailored", "merchant_name": "Craft + Tailored", "image_url": "https://cdn.shopify.com/s/files/1/1104/9180/files/Img044067copy_9230e908-4693-411b-b2aa-0b1d89b056b4.jpg?v=1780613596", "detail_url": "https://mostexpensivewatches.net/listing/h_8110784970861", "buy_url": "https://mostexpensivewatches.net/out/h_8110784970861", "available": true}, {"id": "h_8057351176301", "title": "Rolex *Unpolished* 1985 Rolex Oysterquartz Day-Date 18K YG (Ref. 19018) Black Dial", "brand": "Rolex", "model": "*Unpolished* 1985 Rolex Oysterquartz Day-Date 18K YG (Ref. 19018) Black Dial", "reference": "19018", "price_usd": 24500.0, "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/Img043143_56ce9fc9-ccb8-41d0-b0b0-6219394c7a6e.jpg?v=1776305490", "detail_url": "https://mostexpensivewatches.net/listing/h_8057351176301", "buy_url": "https://mostexpensivewatches.net/out/h_8057351176301", "available": true}, {"id": "h_16334911439193", "title": "Rolex Rolex Day-Date 1803 in 18k Rose Gold Pink-on-Pink Gay Frères Bracelet Portuguese Disc", "brand": "Rolex", "model": "Rolex Day-Date 1803 in 18k Rose Gold Pink-on-Pink Gay Frères Bracelet Portuguese Disc", "reference": "1803", "price_usd": 23900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose 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-3723RolexDay-datein18krosegoldref1803_175_1x1_e7bd2fa8-ed0d-4160-99db-7a38a27bee86.jpg?v=1782288235", "detail_url": "https://mostexpensivewatches.net/listing/h_16334911439193", "buy_url": "https://mostexpensivewatches.net/out/h_16334911439193", "available": true}, {"id": "h_16277839446361", "title": "Rolex Rolex Day-Date 18038 Purple Jubilee Dial Box and Papers French Hallmarks", "brand": "Rolex", "model": "Rolex Day-Date 18038 Purple Jubilee Dial Box and Papers French Hallmarks", "reference": "18038", "price_usd": 20900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": ["Chronograph"], "merchant_slug": "bulang-and-sons", "merchant_name": "Bulang & Sons", "image_url": "https://cdn.shopify.com/s/files/1/0961/8613/8969/files/W-3677RolexDay-Date18038PurpleJubileeDialBoxandPapersFrenchhallmarks_009_1x1_e73876b8-748d-4b06-aae5-c105a3575de6.jpg?v=1778664182", "detail_url": "https://mostexpensivewatches.net/listing/h_16277839446361", "buy_url": "https://mostexpensivewatches.net/out/h_16277839446361", "available": true}, {"id": "h_16357835047257", "title": "Rolex Rolex Day-Date 1803 Khanjar Sigma Champagne Dial", "brand": "Rolex", "model": "Rolex Day-Date 1803 Khanjar Sigma Champagne Dial", "reference": "1803", "price_usd": 20750.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "case_size_mm": 36.0, "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-3817RolexDay-dateChampagneRedKhanjardialref1803_549_1x1_ad4d058e-ac41-41df-95a9-915d5a010705.jpg?v=1781692039", "detail_url": "https://mostexpensivewatches.net/listing/h_16357835047257", "buy_url": "https://mostexpensivewatches.net/out/h_16357835047257", "available": true}, {"id": "h_16277899149657", "title": "Rolex Rolex Day-Date 18078 Champagne Dial Bark with Papers W3731", "brand": "Rolex", "model": "Rolex Day-Date 18078 Champagne Dial Bark with Papers W3731", "reference": "18078", "price_usd": 19900.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 36.0, "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-3731RolexDay-DateChampagnedialBarkfinishwithoriginalguaranteepaperref_226_1x1_ba91f63e-7bdd-47df-affc-1d475b1c4914.jpg?v=1777466329", "detail_url": "https://mostexpensivewatches.net/listing/h_16277899149657", "buy_url": "https://mostexpensivewatches.net/out/h_16277899149657", "available": true}, {"id": "h_16158276518233", "title": "Rolex Rolex Day-Date 18038 Champagne Diamond Markers Dial", "brand": "Rolex", "model": "Rolex Day-Date 18038 Champagne Diamond Markers Dial", "reference": "18038", "price_usd": 16500.0, "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-3660Rolex6239DaytonaBlackDial_597-2_1x1_c28e753a-d6c4-4253-b10f-c91eb1a2134d.jpg?v=1782641615", "detail_url": "https://mostexpensivewatches.net/listing/h_16158276518233", "buy_url": "https://mostexpensivewatches.net/out/h_16158276518233", "available": true}, {"id": "h_16234436657497", "title": "Rolex Rolex Day-Date 1807 Bark Finish Champagne Dial in 18k Yellow Gold Box and Paper Set", "brand": "Rolex", "model": "Rolex Day-Date 1807 Bark Finish Champagne Dial in 18k Yellow Gold Box and Paper Set", "reference": "1807", "price_usd": 12700.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "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-3724RolexDay-dateChampagnedialin18kyellowgoldref1807boxandpapersset_611_1x1_4fa57759-8b69-4d0e-aa54-698f4cee85c0.jpg?v=1776674564", "detail_url": "https://mostexpensivewatches.net/listing/h_16234436657497", "buy_url": "https://mostexpensivewatches.net/out/h_16234436657497", "available": true}, {"id": "h_8077437403245", "title": "Rolex 1982 Rolex Day-Date 18K WG (Ref. 18039) Onyx Stone Dial", "brand": "Rolex", "model": "1982 Rolex Day-Date 18K WG (Ref. 18039) Onyx Stone Dial", "reference": "18039", "price_usd": 295000.0, "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/finalcopy.jpg?v=1778113322", "detail_url": "https://mostexpensivewatches.net/listing/h_8077437403245", "buy_url": "https://mostexpensivewatches.net/out/h_8077437403245", "available": false}, {"id": "h_7674336804973", "title": "Rolex *Unpolished* 1967 Rolex Day-Date 18K RG (Ref. 1803) Silver Guilloche Dial", "brand": "Rolex", "model": "*Unpolished* 1967 Rolex Day-Date 18K RG (Ref. 1803) Silver Guilloche Dial", "reference": "1967", "price_usd": 110000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Platinum", "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/Img037194.jpg?v=1750799843", "detail_url": "https://mostexpensivewatches.net/listing/h_7674336804973", "buy_url": "https://mostexpensivewatches.net/out/h_7674336804973", "available": false}, {"id": "h_9568084328770", "title": "Rolex Day-Date 40 40mm Blue Ombré Dial Fluted Bezel President Bracelet - 228239 | 2024 Model", "brand": "Rolex", "model": "Day-Date 40 40mm Blue Ombré Dial Fluted Bezel President Bracelet - 228239 | 2024 Model", "reference": "228239", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m228239-0076_259e1e78-0cfa-42ad-a8ae-990bb098080c.jpg?v=1718301672", "detail_url": "https://mostexpensivewatches.net/listing/h_9568084328770", "buy_url": "https://mostexpensivewatches.net/out/h_9568084328770", "available": false}, {"id": "h_9568084263234", "title": "Rolex Day-Date 40 40mm White MOP Diamond Set Dial Fluted Bezel President Bracelet - 228239 | 2024 Model", "brand": "Rolex", "model": "Day-Date 40 40mm White MOP Diamond Set Dial Fluted Bezel President Bracelet - 228239 | 2024 Model", "reference": "228239", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k White Gold", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m228239-0078.jpg?v=1718301670", "detail_url": "https://mostexpensivewatches.net/listing/h_9568084263234", "buy_url": "https://mostexpensivewatches.net/out/h_9568084263234", "available": false}, {"id": "h_9568084164930", "title": "Rolex Day-Date 36 36mm Champagne Diamond-Set Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 36 36mm Champagne Diamond-Set Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 36.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m128348rbr-0081.jpg?v=1718301668", "detail_url": "https://mostexpensivewatches.net/listing/h_9568084164930", "buy_url": "https://mostexpensivewatches.net/out/h_9568084164930", "available": false}, {"id": "h_9568084099394", "title": "Rolex Day-Date 36 36mm White Roman Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 36 36mm White Roman Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128348RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Yellow Gold", "case_size_mm": 36.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m128348rbr-0065_1.jpg?v=1718301666", "detail_url": "https://mostexpensivewatches.net/listing/h_9568084099394", "buy_url": "https://mostexpensivewatches.net/out/h_9568084099394", "available": false}, {"id": "h_9568084066626", "title": "Rolex Day-Date 40 40mm Green Ombré Dial Diamond Set Bezel President Bracelet - 228348RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 40 40mm Green Ombré Dial Diamond Set Bezel President Bracelet - 228348RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "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": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m228348rbr-0045.jpg?v=1718301663", "detail_url": "https://mostexpensivewatches.net/listing/h_9568084066626", "buy_url": "https://mostexpensivewatches.net/out/h_9568084066626", "available": false}, {"id": "h_9568083968322", "title": "Rolex Day-Date 40 40mm White MOP Diamond-Set Dial Diamond Set Bezel President Bracelet - 228348RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 40 40mm White MOP Diamond-Set Dial Diamond Set Bezel President Bracelet - 228348RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "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": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m228348rbr-0046.jpg?v=1718301661", "detail_url": "https://mostexpensivewatches.net/listing/h_9568083968322", "buy_url": "https://mostexpensivewatches.net/out/h_9568083968322", "available": false}, {"id": "h_9568083902786", "title": "Rolex Day-Date 36 36mm White Roman Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128345RBR | 2024 Model", "brand": "Rolex", "model": "Day-Date 36 36mm White Roman Dial Diamond-Set Bezel with Diamond-Set President Bracelet - 128345RBR | 2024 Model", "reference": "2024", "price_usd": 100000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "18k Rose Gold", "case_size_mm": 36.0, "movement": "Automatic", "complications": [], "merchant_slug": "watch-affinity", "merchant_name": "Watch-Affinity", "image_url": "https://cdn.shopify.com/s/files/1/0683/2449/1586/files/m128345rbr-0071.jpg?v=1718301659", "detail_url": "https://mostexpensivewatches.net/listing/h_9568083902786", "buy_url": "https://mostexpensivewatches.net/out/h_9568083902786", "available": false}], "auction_lots": [{"slug": "rolex-1803-2019", "brand": "Rolex", "reference": "1803", "model": "Day-Date \"Jack Nicklaus\"", "case_material": "18k Yellow Gold", "hammer_usd": 1220000, "year_sold": 2019, "venue": "Phillips New York", "lot_summary": "The personal watch of golf legend Jack Nicklaus, worn daily for 50 years and present for 12 of his 18 major championship wins.", "source_url": "https://www.phillips.com/detail/rolex/NY080119/18", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/rolex-1803-2019"}]}