{"reference": {"slug": "mb-f-60", "brand": "MB&F", "ref": "60", "model": "Horological Machine No. 6 Sapphire Vision (HM6-SV)", "case_material": "Platinum and Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-60", "description": "The MB&F Horological Machine No. 6 Sapphire Vision (HM6-SV) in platinum was released in 2016 as a limited edition of 10 pieces, marking the final evolution of the HM6 \"Space Pirate\" series which concluded production in 2019. Collectors prioritize this reference for its complex case construction, featuring two plates of solid sapphire crystal sandwiching a platinum center streamliner. The movement, a three-dimensional caliber developed with David Candaux, consists of 475 components and features a 60-second flying tourbillon protected by a retractable semi-spherical titanium shield. Functional details include twin aluminum turbines that regulate the automatic winding system to prevent excessive wear. On the secondary market, the HM6-SV typically commands prices in the mid-to-high six-figure range, often between $350,000 and $500,000 depending on provenance. A notable production detail is that only 100 total movements were manufactured across all HM6 variants, ensuring permanent scarcity for the series."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "mb-f-60-spl-b-2025", "brand": "MB&F", "reference": "60.SPL.B", "model": "Horological Machine No. 6 Sapphire Vision (HM6-SV)", "case_material": "Platinum and Sapphire Crystal", "hammer_usd": 209550, "year_sold": 2025, "venue": "Christie's New York", "lot_summary": "An extremely rare platinum and sapphire version of the 'Space Pirate', limited to only 10 examples, featuring a central flying tourbillon with a retractable cover.", "source_url": "https://www.christies.com/en/lot/lot-6444574", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/mb-f-60-spl-b-2025"}]}