{"query": "410", "brand": null, "total": 6, "limit": 10, "matches": [{"slug": "a-lange-s-hne-410", "brand": "A. Lange & Söhne", "ref": "410", "model": "Datograph Perpetual", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/a-lange-s-hne-410", "description": "The A. Lange & Söhne Datograph Perpetual reference 410.032 in 18k pink gold was introduced in 2015 and remains in the brand’s current catalog. Collectors prioritize this reference for its integration of a column-wheel flyback chronograph with a perpetual calendar and the signature outsize date. It houses the manual-wind caliber L952.1, a 556-component movement featuring a silver-plated dial with solid silver sub-dials and luminous alpha hands. The 41mm case measures 13.5mm in thickness, offering a larger profile than the original 39mm Datograph. On the secondary market, this reference typically trades in the low-to-mid six-figure range, generally between $130,000 and $160,000 depending on condition and provenance. A notable production detail is the rapid-correction pusher at 10 o’clock, which advances all calendar displays simultaneously, a technical distinction from the separate recessed adjusters found on many high-complication perpetual calendars.", "score": 198}, {"slug": "audemars-piguet-4100ba", "brand": "Audemars Piguet", "ref": "4100BA", "model": "Royal Oak", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-4100ba", "description": "The Audemars Piguet Royal Oak reference 4100BA was produced from the late 1970s through the 1980s as the first mid-sized execution of the model line. Collectors target this 18k yellow gold reference for its 35mm case diameter, which offers a traditional alternative to the larger \"Jumbo\" proportions. It features the self-winding Calibre 2123, a movement derived from the Jaeger-LeCoultre 889. The construction includes an integrated bracelet and a monobloc case design consistent with the original Gérald Genta aesthetic. Most examples feature the \"Petite Tapisserie\" dial pattern with an applied AP logo at 12 o'clock. On the secondary market, the 4100BA typically trades between $35,000 and $55,000 depending on condition and the presence of original paperwork. A notable production detail is the transition from \"Audemars Piguet\" script to the block logo on later dials, which influences specific collector preferences for early-series aesthetics.", "score": 83}, {"slug": "iwc-iw504101", "brand": "IWC", "ref": "IW504101", "model": "Portuguese Sidérale Scafusia", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-iw504101", "description": "The IWC Portugieser Sidérale Scafusia reference IW504101 was introduced in 2011 as a built-to-order flagship and remains the most complex timepiece in the brand's history. Production is extremely limited due to the bespoke nature of each piece, which requires approximately one year to manufacture. The watch features the manual-wind caliber 94900, incorporating a constant-force tourbillon, a 96-hour power reserve, and a unique celestial display on the caseback customized to the owner’s specific geographical coordinates. The 46mm platinum case houses a dial displaying both solar time and sidereal time. Collectors value this reference for its astronomical complications, including a perpetual calendar and sunrise/sunset indications. On the secondary market, these timepieces typically command prices in the mid-to-high six-figure range, often between $350,000 and $500,000. A notable aspect of production is that no two examples are identical because the star charts are calibrated to individual locations.", "score": 83}, {"slug": "jlc-master-ultra-thin-tourbillon-pink-gold", "brand": "Jaeger-LeCoultre", "ref": "Q1322410", "model": "Master Ultra Thin Tourbillon", "case_material": "18k Pink Gold", "url": "https://mostexpensivewatches.net/reference/jlc-master-ultra-thin-tourbillon-pink-gold", "description": "The Jaeger-LeCoultre Master Ultra Thin Tourbillon reference Q1322410 was introduced around 2012 and remained a staple of the brand’s high-complication catalog for approximately a decade before being superseded by updated iterations. This reference features a 40mm case constructed from 18k pink gold with a thickness of 11.3mm. It is powered by the manufacture caliber 982, an automatic movement containing 33 jewels and a 45-hour power reserve, notable for its large-aperture tourbillon at 6 o'clock and a peripheral date scale indicated by a pointer hand. Collectors value this model for its balance of a traditional complication with a slim profile and a clean eggshell-beige dial. On the secondary market, this reference typically trades between $35,000 and $48,000 depending on condition and the inclusion of original documentation. A notable production detail is the use of a 22k gold oscillating weight visible through the sapphire caseback.", "score": 83}, {"slug": "universal-gen-ve-884100", "brand": "Universal Genève", "ref": "884100", "model": "Uni-Compax", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/universal-gen-ve-884100", "description": "The Universal Genève Uni-Compax reference 884100, commonly referred to as the \"Big Eye,\" was produced during the mid-1960s and is no longer in production. Collectors value this reference for its asymmetrical dial layout, featuring an oversized three-minute jumping minute recorder at the three o'clock position designed for yachting or timing tasks. The 37mm stainless steel case houses the manual-wind Caliber 125, a movement based on the Valjoux 23. This reference is noted for its rarity compared to the brand’s Tri-Compax models and its distinct aesthetic characterized by a white dial with black sub-dials and blue accents. On the secondary market, prices typically range from $15,000 to $30,000 depending on condition and originality. A notable variant includes the \"Exotic\" dial version, which features orange accents on the hands and registers, often commanding prices at the higher end of the valuation spectrum.", "score": 83}, {"slug": "universal-gen-ve-224106", "brand": "Universal Genève", "ref": "224106", "model": "Medico-Compax", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/universal-gen-ve-224106", "description": "The Universal Genève Medico-Compax reference 224106 was produced during the 1940s and 1950s and is no longer in production. Collectors target this reference for its specialized pulsometer scale, designed for medical professionals to calculate heart rates, and its 35mm stainless steel case featuring \"Enversteel\" branding. It is powered by the manual-wind Caliber 285, a column-wheel chronograph movement central to the brand’s mid-century reputation. The dial typically features a base-30 pulsations scale printed in red or blue, contrasting with the primary timekeeping tracks. On the secondary market, examples generally trade between $8,000 and $15,000 depending on dial originality and case sharpness. A notable production detail is the transition from early versions with square pushers to later iterations with round pushers, with the former often commanding a premium due to their shorter production window and distinct vintage aesthetic.", "score": 83}]}