{"reference": {"slug": "richard-mille-rm27-01", "brand": "Richard Mille", "ref": "RM27-01", "model": "RM27-01 Rafael Nadal", "case_material": "Carbon Nanotube", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm27-01", "description": "The Richard Mille RM27-01 Rafael Nadal was released in 2013 as a limited edition of 50 pieces and is no longer in production. Collectors prioritize this reference for its technical construction, specifically the manual-wind tourbillon caliber suspended by four braided steel cables measuring 0.35mm in diameter. This architecture allows the movement to withstand accelerations exceeding 5,000 Gs. The tonneau-shaped case is composed of an injection-molded carbon nanotube polymer, contributing to a total weight of 18.83 grams including the strap. At its launch, it was recognized as the lightest mechanical watch ever produced. On the secondary market, the RM27-01 typically commands prices in the range of $1.5 million to $2.2 million depending on provenance and condition. A notable auction result occurred in 2023 when a well-preserved example sold for approximately $2.1 million, reflecting its scarcity and significance within the brand’s high-performance athlete partnerships."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "richard-mille-rm27-04-2021", "brand": "Richard Mille", "reference": "RM27-04", "model": "RM27-04 Tourbillon Rafael Nadal", "case_material": "TitaCarb", "hammer_usd": 1890467, "year_sold": 2021, "venue": "Phillips Geneva", "lot_summary": "Created to celebrate the 10th anniversary of the partnership between Richard Mille and Rafael Nadal, this limited edition of 50 pieces features a revolutionary cable-suspended movement capable of withstanding 12,000 Gs.", "source_url": "https://www.phillips.com/detail/richard-mille/CH080121/12", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/richard-mille-rm27-04-2021"}, {"slug": "richard-mille-rm27-01-2023", "brand": "Richard Mille", "reference": "RM27-01", "model": "RM27-01 Rafael Nadal", "case_material": "Carbon Nanotube", "hammer_usd": 1050512, "year_sold": 2023, "venue": "Phillips Geneva", "lot_summary": "Numbered 14 of 50, this ultra-lightweight tourbillon weighs just 19 grams including the strap and features a movement suspended by four braided steel cables.", "source_url": "https://www.phillips.com/detail/richard-mille/CH080223/14", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/richard-mille-rm27-01-2023"}]}