{"reference": {"slug": "omega-2077-4", "brand": "Omega", "ref": "2077-4", "model": "Chronograph Multi-scale", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/omega-2077-4", "description": "The Omega reference 2077-4 is a vintage chronograph produced during the early to mid-1940s. Collectors prioritize this reference for its 38mm stainless steel \"waterproof\" case, which features a screw-down caseback and round pushers, a significant size for the era. It is powered by the manual-wind Caliber 33.3, a high-grade movement derived from Lemania that preceded the 321. The \"Multi-scale\" designation refers to the technical dial layout, which typically includes concentric tachymeter, telemeter, and pulsometer scales in contrasting colors. Due to its limited production and historical position as a predecessor to modern professional chronographs, the 2077-4 is rare. On the secondary market, well-preserved examples generally command prices in the $40,000 to $80,000 range, though exceptional specimens with original multi-color snail dials have reached six figures at auction. A notable variant includes the black dial execution, which often realizes a significant premium over silvered versions."}, "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "listings": [], "auction_lots": [{"slug": "omega-2077-4-2019", "brand": "Omega", "reference": "2077-4", "model": "Chronograph Multi-scale", "case_material": "Stainless Steel", "hammer_usd": 33000, "year_sold": 2019, "venue": "Phillips Geneva", "lot_summary": "An oversized 38mm chronograph from 1945 featuring a complex multi-scale dial with both tachymeter and pulsation scales.", "source_url": "https://www.phillips.com/detail/omega/CH080219/187", "provenance": "ai_generated_grounded", "url": "https://mostexpensivewatches.net/auctions/omega-2077-4-2019"}]}