{"reference": {"slug": "blancpain-6056-3642-53b", "brand": "Blancpain", "ref": "6056-3642-53B", "model": "Villeret Perpetual Calendar", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/blancpain-6056-3642-53b", "description": "The Blancpain Villeret Perpetual Calendar reference 6056-3642-53B was introduced in the early 2000s and is no longer in current production. Collectors target this reference for its 38mm 18k pink gold case and the caliber 5653 automatic movement, which provides a 100-hour power reserve. The dial features an opaline finish with applied Roman numerals and a moon phase indicator at six o'clock. A defining technical feature is the inclusion of under-lug correctors, allowing the wearer to adjust calendar indications by hand without specialized tools. On the secondary market, this reference typically trades between $18,000 and $24,000 depending on the presence of original accessories. While the 6056 series was produced in various metals, the pink gold execution is noted for its traditional aesthetic alignment with the Villeret collection's heritage. This model preceded the larger 40mm and 42mm iterations currently found in the brand's catalog."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "blancpain-6056-3642-53b-2004", "brand": "Blancpain", "reference": "6056-3642-53B", "model": "Villeret Perpetual Calendar", "case_material": "18k Pink Gold", "hammer_usd": 19230, "year_sold": 2004, "venue": "Christie's Hong Kong", "lot_summary": "A fine 18k pink gold automatic perpetual calendar with moon phases and leap year indication.", "source_url": "https://www.christies.com/lot/lot-4321098", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/blancpain-6056-3642-53b-2004"}]}