{"reference": {"slug": "iwc-iw501004", "brand": "IWC", "ref": "IW501004", "model": "Big Pilot's Watch Heritage", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-iw501004", "description": "The IWC Big Pilot’s Watch Heritage reference IW501004 was introduced in 2017 and remains a part of the brand’s catalog. Collectors target this reference for its 46.2mm Grade 5 titanium case, which offers a lighter alternative to the traditional steel Big Pilot while maintaining the historical oversized aesthetic. It features a black dial with high-contrast beige luminescence designed to mimic the radium patina of the 1940s 52 T.S.C. military observers. The watch is powered by the IWC-manufactured caliber 52110, an automatic movement featuring a Pellaton winding system and a seven-day power reserve displayed at 3 o'clock. On the secondary market, this reference typically trades between $8,500 and $11,000 depending on condition and completeness. A notable production detail is the inclusion of a soft-iron inner case for protection against magnetic fields, adhering to original pilot specifications."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "iwc-iw501004-2024", "brand": "IWC", "reference": "IW501004", "model": "Big Pilot's Watch Heritage", "case_material": "Titanium", "hammer_usd": 10500, "year_sold": 2024, "venue": "Christie's New York", "lot_summary": "A 46mm titanium homage to the original 1940s B-Uhr, combining vintage aesthetics with modern lightweight materials.", "source_url": "https://www.christies.com/en/lot/lot-6491234", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/iwc-iw501004-2024"}]}