{"reference": {"slug": "universal-gen-ve-22477", "brand": "Universal Genève", "ref": "22477", "model": "Aero-Compax", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/universal-gen-ve-22477", "description": "The Universal Genève Aero-Compax reference 22477 was produced during the 1940s, specifically appearing in catalogs around 1941 through the mid-to-late decade. Collectors prioritize this reference for its 37mm stainless steel spillman-style case and the manual-wind Calibre 285 movement. The dial configuration features four sub-registers, including a \"memento\" dial at 12 o'clock intended for pilots to record a specific event time using an independent crown at 9 o'clock. This technical complication distinguishes it from standard chronographs of the era. On the secondary market, examples typically trade between $10,000 and $20,000 depending on dial originality and case sharpness. A notable production detail is the transition from early radium-luminous leaf hands to later syringe-style hands. High-condition examples with unpolished cases and original \"tropical\" or silvered dials have reached the upper end of this range at specialized watch auctions."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "universal-gen-ve-22477-2017", "brand": "Universal Genève", "reference": "22477", "model": "Aero-Compax", "case_material": "Stainless Steel", "hammer_usd": 11433, "year_sold": 2017, "venue": "Sotheby's Geneva", "lot_summary": "An early example of the Aero-Compax featuring a 'memento' dial at 12 o'clock, used by pilots to record a specific time.", "source_url": "https://www.sothebys.com/en/auctions/ecatalogue/2017/important-watches-ge1704/lot.48.html", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/universal-gen-ve-22477-2017"}]}