{"@context": "https://schema.org", "@type": "Dataset", "name": "MostExpensiveWatches Grail Index ($1M+ segment)", "description": "Transaction-based performance record of the $1M+ ultra-luxury watch segment that broad-market indices exclude: annual counts, medians and totals of seven-figure auction results, dominant brands, and repeat-reference trajectories.", "url": "https://mostexpensivewatches.net/data/grail-index.json", "creator": {"@type": "Organization", "name": "MostExpensiveWatches", "url": "https://mostexpensivewatches.net"}, "isAccessibleForFree": true, "license": "https://creativecommons.org/licenses/by/4.0/", "creditText": "Source: MostExpensiveWatches Grail Index", "temporalCoverage": "2002–2026", "headline": "The MostExpensiveWatches Grail Index tracks 165 documented $1M+ watch results worth $566,269,033 across 2002–2026, led by the Patek Philippe Grandmaster Chime at $31,000,000.", "gloss": "The $1M+ segment totals 165 results worth $566,269,033 (2002–2026). Patek Philippe leads with $268,146,701 in value, followed by Rolex, F.P. Journe, Richard Mille, and Audemars Piguet. Recent med", "compiled_at": "2026-07-03T13:01:00.727414+00:00", "index": {"total_lots": 165, "gloss": "The $1M+ segment totals 165 results worth $566,269,033 (2002–2026). Patek Philippe leads with $268,146,701 in value, followed by Rolex, F.P. Journe, Richard Mille, and Audemars Piguet. Recent med", "by_year": [{"total_usd": 1500000, "year": 2002, "count": 1, "top_lot": {"year_sold": 2002, "model": "Tortue Minute Repeater", "hammer_usd": 1500000, "venue": "Antiquorum Geneva", "brand": "Cartier", "reference": "Tortue Minute Repeater", "slug": "cartier-tortue-minute-repeater-2002"}, "top_usd": 1500000, "median_usd": 1500000, "mean_usd": 1500000}, {"total_usd": 4319000, "year": 2005, "count": 2, "top_lot": {"year_sold": 2005, "model": "King Fouad I Pocket Watch", "hammer_usd": 2755000, "venue": "Antiquorum Geneva", "brand": "Vacheron Constantin", "reference": "402833", "slug": "vacheron-constantin-402833-2005"}, "top_usd": 2755000, "median_usd": 2159500.0, "mean_usd": 2159500}, {"total_usd": 1200000, "year": 2009, "count": 1, "top_lot": {"year_sold": 2009, "model": "Minute Repeating Perpetual Calendar", "hammer_usd": 1200000, "venue": "Antiquorum New York", "brand": "Patek Philippe", "reference": "3974", "slug": "patek-philippe-3974-2009"}, "top_usd": 1200000, "median_usd": 1200000, "mean_usd": 1200000}, {"total_usd": 5708885, "year": 2010, "count": 1, "top_lot": {"year_sold": 2010, "model": "Perpetual Calendar Chronograph", "hammer_usd": 5708885, "venue": "Christie's Geneva", "brand": "Patek Philippe", "reference": "1527", "slug": "patek-philippe-1527-2010"}, "top_usd": 5708885, "median_usd": 5708885, "mean_usd": 5708885}, {"total_usd": 3773260, "year": 2012, "count": 2, "top_lot": {"year_sold": 2012, "model": "Perpetual Calendar Chronograph", "hammer_usd": 2750760, "venue": "Christie's Geneva", "brand": "Patek Philippe", "reference": "2499", "slug": "patek-philippe-2499-2012"}, "top_usd": 2750760, "median_usd": 1886630.0, "mean_usd": 1886630}, {"total_usd": 14965717, "year": 2013, "count": 5, "top_lot": {"year_sold": 2013, "model": "Split-Seconds Chronograph Perpetual Calendar", "hammer_usd": 8293700, "venue": "Phillips Geneva (Only Watch)", "brand": "Patek Philippe", "reference": "5004T", "slug": "patek-5004t-only-watch"}, "top_usd": 8293700, "median_usd": 2186081, "mean_usd": 2993143}, {"total_usd": 24000000, "year": 2014, "count": 1, "top_lot": {"year_sold": 2014, "model": "Henry Graves Supercomplication", "hammer_usd": 24000000, "venue": "Sotheby's Geneva", "brand": "Patek Philippe", "reference": "Henry Graves Supercomplication", "slug": "patek-graves-supercomplication"}, "top_usd": 24000000, "median_usd": 24000000, "mean_usd": 24000000}, {"total_usd": 26165348, "year": 2015, "count": 6, "top_lot": {"year_sold": 2015, "model": "Reference 57260", "hammer_usd": 8000000, "venue": "Vacheron Constantin (commission)", "brand": "Vacheron Constantin", "reference": "57260", "slug": "vacheron-57260"}, "top_usd": 8000000, "median_usd": 4139000.0, "mean_usd": 4360891}, {"total_usd": 15736541, "year": 2016, "count": 4, "top_lot": {"year_sold": 2016, "model": "Perpetual Calendar Chronograph", "hammer_usd": 11136642, "venue": "Phillips Geneva", "brand": "Patek Philippe", "reference": "1518", "slug": "patek-1518-steel-1943"}, "top_usd": 11136642, "median_usd": 1789949.5, "mean_usd": 3934135}, {"total_usd": 38356811, "year": 2017, "count": 8, "top_lot": {"year_sold": 2017, "model": "Daytona 'Paul Newman'", "hammer_usd": 17752500, "venue": "Phillips New York", "brand": "Rolex", "reference": "6239", "slug": "rolex-paul-newman-daytona-6239"}, "top_usd": 17752500, "median_usd": 2763000.0, "mean_usd": 4794601}, {"total_usd": 24450664, "year": 2018, "count": 8, "top_lot": {"year_sold": 2018, "model": "Cosmograph Daytona \"The Unicorn\"", "hammer_usd": 5936906, "venue": "Phillips Geneva", "brand": "Rolex", "reference": "6265", "slug": "rolex-6265-2018"}, "top_usd": 5936906, "median_usd": 2412461.0, "mean_usd": 3056333}, {"total_usd": 51472250, "year": 2019, "count": 9, "top_lot": {"year_sold": 2019, "model": "Grandmaster Chime", "hammer_usd": 31000000, "venue": "Christie's Geneva (Only Watch)", "brand": "Patek Philippe", "reference": "6300A-010", "slug": "patek-grandmaster-chime-6300a-only-watch"}, "top_usd": 31000000, "median_usd": 1940000, "mean_usd": 5719139}, {"total_usd": 23883947, "year": 2020, "count": 10, "top_lot": {"year_sold": 2020, "model": "Cosmograph Daytona \"Big Red\"", "hammer_usd": 5475000, "venue": "Phillips New York", "brand": "Rolex", "reference": "6263", "slug": "rolex-6263-2020"}, "top_usd": 5475000, "median_usd": 2129000.0, "mean_usd": 2388395}, {"total_usd": 62132876, "year": 2021, "count": 18, "top_lot": {"year_sold": 2021, "model": "\"Eurasia\" World Time", "hammer_usd": 7819051, "venue": "Phillips Geneva", "brand": "Patek Philippe", "reference": "2523", "slug": "patek-philippe-2523-2021"}, "top_usd": 7819051, "median_usd": 3285500.0, "mean_usd": 3451826}, {"total_usd": 40217086, "year": 2022, "count": 21, "top_lot": {"year_sold": 2022, "model": "Spring Case Tourbillon", "hammer_usd": 4092075, "venue": "Phillips Geneva", "brand": "George Daniels", "reference": "Spring Case Tourbillon", "slug": "george-daniels-spring-case-tourbillon-2022"}, "top_usd": 4092075, "median_usd": 1500000, "mean_usd": 1915099}, {"total_usd": 50220932, "year": 2023, "count": 20, "top_lot": {"year_sold": 2023, "model": "World Time 'North America'", "hammer_usd": 8530000, "venue": "Christie's Hong Kong", "brand": "Patek Philippe", "reference": "2523", "slug": "patek-philippe-2523-2023"}, "top_usd": 8530000, "median_usd": 1575041.5, "mean_usd": 2511047}, {"total_usd": 82874057, "year": 2024, "count": 26, "top_lot": {"year_sold": 2024, "model": "Grande Sonnerie Only Watch", "hammer_usd": 17300000, "venue": "Christie's Geneva", "brand": "Patek Philippe", "reference": "6301A-001", "slug": "patek-philippe-6301a-001-2024"}, "top_usd": 17300000, "median_usd": 2132000.0, "mean_usd": 3187464}, {"total_usd": 68585243, "year": 2025, "count": 14, "top_lot": {"year_sold": 2025, "model": "Perpetual Calendar Chronograph", "hammer_usd": 17631075, "venue": "Phillips Geneva", "brand": "Patek Philippe", "reference": "1518", "slug": "patek-philippe-1518-2025"}, "top_usd": 17631075, "median_usd": 3271500.0, "mean_usd": 4898946}, {"total_usd": 26706416, "year": 2026, "count": 8, "top_lot": {"year_sold": 2026, "model": "\"South America\" World Time", "hammer_usd": 10247000, "venue": "Phillips Geneva", "brand": "Patek Philippe", "reference": "2523", "slug": "patek-philippe-2523-2026"}, "top_usd": 10247000, "median_usd": 2423848.0, "mean_usd": 3338302}], "segment_count_growth_pct": 700.0, "by_brand": [{"top_usd": 31000000, "total_usd": 268146701, "count": 48, "median_usd": 3195500.0, "brand": "Patek Philippe", "top_lot": {"year_sold": 2019, "model": "Grandmaster Chime", "hammer_usd": 31000000, "venue": "Christie's Geneva (Only Watch)", "brand": "Patek Philippe", "reference": "6300A-010", "slug": "patek-grandmaster-chime-6300a-only-watch"}}, {"top_usd": 17752500, "total_usd": 94946400, "count": 33, "median_usd": 1758000, "brand": "Rolex", "top_lot": {"year_sold": 2017, "model": "Daytona 'Paul Newman'", "hammer_usd": 17752500, "venue": "Phillips New York", "brand": "Rolex", "reference": "6239", "slug": "rolex-paul-newman-daytona-6239"}}, {"top_usd": 10755000, "total_usd": 71981294, "count": 28, "median_usd": 1604250.0, "brand": "F.P. Journe", "top_lot": {"year_sold": 2025, "model": "FFC Prototype", "hammer_usd": 10755000, "venue": "Phillips New York", "brand": "F.P. Journe", "reference": "FFC Prototype", "slug": "f-p-journe-ffc-prototype-2025"}}, {"top_usd": 4548000, "total_usd": 28374479, "count": 15, "median_usd": 1608000, "brand": "Richard Mille", "top_lot": {"year_sold": 2023, "model": "Tourbillon Sapphire", "hammer_usd": 4548000, "venue": "Sotheby's Hong Kong", "brand": "Richard Mille", "reference": "RM 53-02", "slug": "richard-mille-rm-53-02-2023"}}, {"top_usd": 7736000, "total_usd": 20533907, "count": 8, "median_usd": 1663500.0, "brand": "Audemars Piguet", "top_lot": {"year_sold": 2025, "model": "Grosse Pièce", "hammer_usd": 7736000, "venue": "Sotheby's New York", "brand": "Audemars Piguet", "reference": "16869", "slug": "audemars-piguet-16869-2025"}}, {"top_usd": 5182109, "total_usd": 14544401, "count": 5, "median_usd": 2056500, "brand": "Philippe Dufour", "top_lot": {"year_sold": 2021, "model": "Grande et Petite Sonnerie No. 1", "hammer_usd": 5182109, "venue": "Phillips Geneva", "brand": "Philippe Dufour", "reference": "Grande et Petite Sonnerie", "slug": "philippe-dufour-grande-et-petite-sonnerie-2021"}}, {"top_usd": 8000000, "total_usd": 12319000, "count": 3, "median_usd": 2755000, "brand": "Vacheron Constantin", "top_lot": {"year_sold": 2015, "model": "Reference 57260", "hammer_usd": 8000000, "venue": "Vacheron Constantin (commission)", "brand": "Vacheron Constantin", "reference": "57260", "slug": "vacheron-57260"}}, {"top_usd": 4092075, "total_usd": 10131189, "count": 4, "median_usd": 2389250.0, "brand": "George Daniels", "top_lot": {"year_sold": 2022, "model": "Spring Case Tourbillon", "hammer_usd": 4092075, "venue": "Phillips Geneva", "brand": "George Daniels", "reference": "Spring Case Tourbillon", "slug": "george-daniels-spring-case-tourbillon-2022"}}, {"top_usd": 2028800, "total_usd": 7618800, "count": 5, "median_usd": 1500000, "brand": "Cartier", "top_lot": {"year_sold": 2026, "model": "Crash", "hammer_usd": 2028800, "venue": "Christie's Geneva", "brand": "Cartier", "reference": "London Crash", "slug": "cartier-london-crash-2026"}}, {"top_usd": 3400000, "total_usd": 6641000, "count": 3, "median_usd": 1812500, "brand": "Omega", "top_lot": {"year_sold": 2021, "model": "Speedmaster Broad Arrow", "hammer_usd": 3400000, "venue": "Phillips Geneva", "brand": "Omega", "reference": "2915-1", "slug": "omega-speedmaster-2915-1-broad-arrow"}}, {"top_usd": 6617010, "total_usd": 6617010, "count": 1, "median_usd": 6617010, "brand": "Breguet", "top_lot": {"year_sold": 2025, "model": "Sympathique Clock and Wristwatch", "hammer_usd": 6617010, "venue": "Phillips Geneva", "brand": "Breguet", "reference": "Sympathique No. 1", "slug": "breguet-sympathique-no-1-2025"}}, {"top_usd": 3861000, "total_usd": 6365852, "count": 3, "median_usd": 1274852, "brand": "Rexhep Rexhepi", "top_lot": {"year_sold": 2026, "model": "AK-06", "hammer_usd": 3861000, "venue": "Phillips Geneva", "brand": "Rexhep Rexhepi", "reference": "AK-06", "slug": "rexhep-rexhepi-ak-06-2026"}}, {"top_usd": 2208000, "total_usd": 5856000, "count": 3, "median_usd": 2208000, "brand": "Heuer", "top_lot": {"year_sold": 2020, "model": "Monaco", "hammer_usd": 2208000, "venue": "Phillips New York", "brand": "Heuer", "reference": "1133B", "slug": "heuer-monaco-1133b-steve-mcqueen"}}, {"top_usd": 2898000, "total_usd": 4998000, "count": 2, "median_usd": 2499000.0, "brand": "Greubel Forsey", "top_lot": {"year_sold": 2022, "model": "Quadruple Tourbillon", "hammer_usd": 2898000, "venue": "Christie's Hong Kong", "brand": "Greubel Forsey", "reference": "GF03", "slug": "greubel-forsey-gf03-2022"}}, {"top_usd": 2485000, "total_usd": 3785000, "count": 2, "median_usd": 1892500.0, "brand": "A. Lange & Söhne", "top_lot": {"year_sold": 2024, "model": "Grand Complication", "hammer_usd": 2485000, "venue": "Phillips Geneva", "brand": "A. Lange & Söhne", "reference": "912.032", "slug": "lange-grand-complication-1"}}], "status": "ok", "total_value_usd": 566269033, "as_of": "2026-07-03", "name": "MostExpensiveWatches Grail Index", "methodology": "The Grail Index tracks every documented auction result at or above $1,000,000 in MostExpensiveWatches' comp corpus — the ultra-high-end segment broad-market indices exclude. Figures are realized hammer prices including buyer's premium where reported. Annual aggregates show the segment's real trajectory; repeat-reference rows track the same reference across multiple sales. Sample sizes are disclosed for every cohort; this is a transparent historical record, not a modelled live tick.", "floor_usd": 1000000, "latest_year": {"total_usd": 26706416, "year": 2026, "count": 8, "top_lot": {"year_sold": 2026, "model": "\"South America\" World Time", "hammer_usd": 10247000, "venue": "Phillips Geneva", "brand": "Patek Philippe", "reference": "2523", "slug": "patek-philippe-2523-2026"}, "top_usd": 10247000, "median_usd": 2423848.0, "mean_usd": 3338302}, "all_time_top": {"year_sold": 2019, "model": "Grandmaster Chime", "hammer_usd": 31000000, "venue": "Christie's Geneva (Only Watch)", "reference": "6300A-010", "brand": "Patek Philippe", "slug": "patek-grandmaster-chime-6300a-only-watch"}, "compiled_at": "2026-07-03T13:01:00.727414+00:00", "repeat_references": [{"reference": "6263", "trajectory": [{"model": "Cosmograph Daytona \"Albino\"", "year": 2015, "hammer_usd": 1418000}, {"model": "Daytona 'The Legend'", "year": 2017, "hammer_usd": 3726000}, {"model": "Cosmograph Daytona \"Oyster Sotto\"", "year": 2018, "hammer_usd": 1662106}, {"model": "Cosmograph Daytona \"Big Red\"", "year": 2020, "hammer_usd": 5475000}, {"model": "Daytona 'Big Red' (John Mayer's)", "year": 2024, "hammer_usd": 5400000}], "model": "Cosmograph Daytona \"Big Red\"", "span": "2015–2024", "brand": "Rolex", "change_pct": 280.8, "appearances": 5}, {"reference": "RN", "trajectory": [{"model": "Chronomètre à Résonance Pre-production", "year": 2022, "hammer_usd": 1300000}, {"model": "Chronomètre à Résonance \"Sincere Fine Watches\"", "year": 2025, "hammer_usd": 3700000}], "model": "Chronomètre à Résonance \"Sincere Fine Watches\"", "span": "2022–2025", "brand": "F.P. Journe", "change_pct": 184.6, "appearances": 2}, {"reference": "T", "trajectory": [{"model": "Tourbillon Souverain \"Ruthenium\"", "year": 2025, "hammer_usd": 1140000}, {"model": "Tourbillon Souverain Ref. T", "year": 2026, "hammer_usd": 3121920}], "model": "Tourbillon Souverain Ref. T", "span": "2025–2026", "brand": "F.P. Journe", "change_pct": 173.9, "appearances": 2}, {"reference": "3448", "trajectory": [{"model": "Perpetual Calendar 'Padellone'", "year": 2019, "hammer_usd": 1155000}, {"model": "Perpetual Calendar 'Senza Luna'", "year": 2023, "hammer_usd": 2500000}], "model": "Perpetual Calendar 'Senza Luna'", "span": "2019–2023", "brand": "Patek Philippe", "change_pct": 116.5, "appearances": 2}, {"reference": "1518", "trajectory": [{"model": "Perpetual Calendar Chronograph", "year": 2016, "hammer_usd": 11136642}, {"model": "\"Pink on Pink\" Perpetual Calendar Chronograph", "year": 2020, "hammer_usd": 3565224}, {"model": "Perpetual Calendar Chronograph (Pink Gold)", "year": 2021, "hammer_usd": 3171000}, {"model": "Perpetual Calendar Chronograph", "year": 2022, "hammer_usd": 2900000}, {"model": "Perpetual Calendar Chronograph 'FAB. SUISSE'", "year": 2024, "hammer_usd": 2452564}, {"model": "Perpetual Calendar Chronograph", "year": 2025, "hammer_usd": 17631075}], "model": "Perpetual Calendar Chronograph", "span": "2016–2025", "brand": "Patek Philippe", "change_pct": 58.3, "appearances": 6}, {"reference": "3974", "trajectory": [{"model": "Minute Repeating Perpetual Calendar", "year": 2009, "hammer_usd": 1200000}, {"model": "Minute Repeater Perpetual Calendar", "year": 2024, "hammer_usd": 1810000}], "model": "Minute Repeater Perpetual Calendar", "span": "2009–2024", "brand": "Patek Philippe", "change_pct": 50.8, "appearances": 2}, {"reference": "TN", "trajectory": [{"model": "Tourbillon Souverain (Souscription, brass movement)", "year": 2022, "hammer_usd": 1540000}, {"model": "Tourbillon Souverain 'Jade Dial'", "year": 2023, "hammer_usd": 1264423}, {"model": "Tourbillon Souverain TN \"Régence Circulaire\"", "year": 2025, "hammer_usd": 2104100}], "model": "Tourbillon Souverain TN \"Régence Circulaire\"", "span": "2022–2025", "brand": "F.P. Journe", "change_pct": 36.6, "appearances": 3}, {"reference": "London Crash", "trajectory": [{"model": "London Crash (original 1967)", "year": 2022, "hammer_usd": 1490000}, {"model": "Crash", "year": 2026, "hammer_usd": 2028800}], "model": "Crash", "span": "2022–2026", "brand": "Cartier", "change_pct": 36.2, "appearances": 2}, {"reference": "6239", "trajectory": [{"model": "Cosmograph Daytona \"The Doctor\"", "year": 2016, "hammer_usd": 1113106}, {"model": "Daytona 'Paul Newman'", "year": 2017, "hammer_usd": 17752500}, {"model": "Daytona \"Paul Newman\"", "year": 2026, "hammer_usd": 1300000}], "model": "Daytona 'Paul Newman'", "span": "2016–2026", "brand": "Rolex", "change_pct": 16.8, "appearances": 3}, {"reference": "2523", "trajectory": [{"model": "World Time Cloisonné Enamel Dial", "year": 2019, "hammer_usd": 8968750}, {"model": "\"Eurasia\" World Time", "year": 2021, "hammer_usd": 7819051}, {"model": "World Time 'North America'", "year": 2023, "hammer_usd": 8530000}, {"model": "\"South America\" World Time", "year": 2026, "hammer_usd": 10247000}], "model": "\"South America\" World Time", "span": "2019–2026", "brand": "Patek Philippe", "change_pct": 14.3, "appearances": 4}, {"reference": "Duality", "trajectory": [{"model": "Duality", "year": 2017, "hammer_usd": 1800000}, {"model": "Duality No. 08", "year": 2021, "hammer_usd": 3993792}, {"model": "Duality No. 03", "year": 2024, "hammer_usd": 2056500}], "model": "Duality No. 08", "span": "2017–2024", "brand": "Philippe Dufour", "change_pct": 14.2, "appearances": 3}, {"reference": "2499", "trajectory": [{"model": "Perpetual Calendar Chronograph", "year": 2012, "hammer_usd": 2750760}, {"model": "Perpetual Calendar Chronograph", "year": 2013, "hammer_usd": 2186081}, {"model": "Perpetual Calendar Chronograph (First Series)", "year": 2018, "hammer_usd": 5661730}, {"model": "Perpetual Calendar Chronograph", "year": 2020, "hammer_usd": 2740000}, {"model": "Perpetual Calendar Chronograph Second Series", "year": 2021, "hammer_usd": 2718030}, {"model": "Perpetual Calendar Chronograph", "year": 2024, "hammer_usd": 2590000}], "model": "Perpetual Calendar Chronograph (First Series)", "span": "2012–2024", "brand": "Patek Philippe", "change_pct": -5.8, "appearances": 6}, {"reference": "8171", "trajectory": [{"model": "Triple Calendar \"Padellone\"", "year": 2013, "hammer_usd": 1145000}, {"model": "Triple Calendar Moonphase \"Padellone\"", "year": 2016, "hammer_usd": 1020000}], "model": "Triple Calendar \"Padellone\"", "span": "2013–2016", "brand": "Rolex", "change_pct": -10.9, "appearances": 2}, {"reference": "4113", "trajectory": [{"model": "Split-Seconds Chronograph", "year": 2016, "hammer_usd": 2466793}, {"model": "Split-Seconds Chronograph", "year": 2019, "hammer_usd": 1945000}], "model": "Split-Seconds Chronograph", "span": "2016–2019", "brand": "Rolex", "change_pct": -21.2, "appearances": 2}, {"reference": "1133B", "trajectory": [{"model": "Monaco", "year": 2020, "hammer_usd": 2208000}, {"model": "Monaco", "year": 2024, "hammer_usd": 1440000}], "model": "Monaco", "span": "2020–2024", "brand": "Heuer", "change_pct": -34.8, "appearances": 2}, {"reference": "5711/1A-018", "trajectory": [{"model": "Nautilus 'Tiffany Blue'", "year": 2021, "hammer_usd": 6503500}, {"model": "Nautilus 'Tiffany Blue'", "year": 2022, "hammer_usd": 3220000}], "model": "Nautilus 'Tiffany Blue'", "span": "2021–2022", "brand": "Patek Philippe", "change_pct": -50.5, "appearances": 2}, {"reference": "6241", "trajectory": [{"model": "Daytona \"John Player Special\"", "year": 2023, "hammer_usd": 2800000}, {"model": "Daytona \"John Player Special\"", "year": 2024, "hammer_usd": 1140000}], "model": "Daytona \"John Player Special\"", "span": "2023–2024", "brand": "Rolex", "change_pct": -59.3, "appearances": 2}, {"reference": "6062", "trajectory": [{"model": "Triple-Calendar Moonphase 'Bao Dai'", "year": 2017, "hammer_usd": 5066000}, {"model": "Oyster Perpetual \"Dark Star\"", "year": 2018, "hammer_usd": 1572500}, {"model": "Triple Calendar Moonphase \"Stelline\"", "year": 2019, "hammer_usd": 1940000}, {"model": "Cosmograph 'Black Dial'", "year": 2023, "hammer_usd": 2100000}, {"model": "Stelline (Stars Markers)", "year": 2023, "hammer_usd": 1140000}], "model": "Triple-Calendar Moonphase 'Bao Dai'", "span": "2017–2023", "brand": "Rolex", "change_pct": -77.5, "appearances": 5}], "years_covered": "2002–2026"}}