{"reference": {"slug": "iwc-iw5036-05", "brand": "IWC", "ref": "IW5036-05", "model": "Big Pilot's Watch Perpetual Calendar", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-iw5036-05", "description": "The IWC Big Pilot’s Watch Perpetual Calendar reference IW5036-05 was introduced in 2021 as a core collection model and remains in current production. This reference is distinguished by its combination of a 46.2mm stainless steel case and a sunray-finished blue dial, a pairing previously reserved for limited editions like the \"Le Petit Prince\" series. It utilizes the IWC-manufactured caliber 52615, an automatic movement featuring a Pellaton winding system, ceramic components, and a seven-day power reserve via twin barrels. The perpetual calendar complication, originally engineered by Kurt Klaus, displays the date, day, month, and year in four digits, alongside a double moon phase for both hemispheres. On the secondary market, this reference typically trades between $22,000 and $28,000. While not a limited production, it represents the first time this specific blue and steel configuration entered the permanent Big Pilot catalog without boutique-exclusive branding."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "iwc-iw503607-2021", "brand": "IWC", "reference": "IW503607", "model": "Big Pilot's Watch Perpetual Calendar Edition 'Toto Wolff'", "case_material": "Ceratanium", "hammer_usd": 171000, "year_sold": 2021, "venue": "Christie's Geneva", "lot_summary": "A unique piece created for Only Watch 2021, featuring a Ceratanium case and a transparent glass dial, honoring the Mercedes-AMG Petronas F1 CEO.", "source_url": "https://www.christies.com/en/lot/lot-6344553", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/iwc-iw503607-2021"}, {"slug": "iwc-iw5036-05-2024", "brand": "IWC", "reference": "IW5036-05", "model": "Big Pilot's Watch Perpetual Calendar", "case_material": "Stainless Steel", "hammer_usd": 72000, "year_sold": 2024, "venue": "Sotheby's New York", "lot_summary": "Owned and worn by NFL legend Tom Brady, notably during the Tampa Bay Buccaneers' Super Bowl LV victory visit to the White House in 2021.", "source_url": "https://www.sothebys.com/en/buy/auction/2024/the-goat-collection-watches-treasures-from-tom-brady/reference-iw5036-05-big-pilots-watch-a-stainless", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/iwc-iw5036-05-2024"}]}