{"query": "ST", "brand": null, "total": 10, "limit": 10, "matches": [{"slug": "omega-st", "brand": "Omega", "ref": "ST", "model": "Speedmaster Prototype", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/omega-st", "description": "The Omega Speedmaster Prototype ST (Stainless Steel) refers to a series of experimental chronographs produced primarily between the late 1960s and early 1970s. Collectors value these references for their rarity and technical divergence from standard Moonwatch specifications, often featuring the Calibre 861 or 1040 movements. These prototypes frequently showcase unique dial configurations, such as the \"Alaska Project\" radial sub-dials or experimental white matte finishes designed for thermal reflection. Case constructions vary from standard asymmetrical designs to reinforced housings intended for extreme environments. Due to their scarcity and historical significance in NASA testing, these watches rarely appear on the secondary market, typically commanding prices in the mid-to-high six-figure range. A notable auction result occurred in 2021 when a 1972 Speedmaster Professional Alaska II prototype sold for over $500,000, underscoring the high demand for documented developmental pieces with verified provenance.", "score": 197}, {"slug": "a-lange-sohne-363-179-odysseus-steel", "brand": "A. Lange & Söhne", "ref": "363.179", "model": "Odysseus", "case_material": "Stainless Steel", "url": "https://mostexpensivewatches.net/reference/a-lange-sohne-363-179-odysseus-steel", "description": "The A. Lange & Söhne Odysseus reference 363.179 in stainless steel was introduced in October 2019 as the brand’s first series-produced luxury sports watch. It remains in current production, though availability is limited through authorized boutiques. Collectors prioritize this reference for its integrated bracelet design and the caliber L155.1 Datomatic, a movement specifically engineered for this line with a 4Hz frequency and a 50-hour power reserve. The 40.5mm case features a screw-down crown and 120-meter water resistance, while the dark blue dial includes a textured graining and oversized day-date apertures. On the secondary market, this reference typically commands between $45,000 and $55,000, significantly above its original retail price. While the 363.179 is the standard production steel model, its launch marked a historical shift for the manufacture, which had previously focused almost exclusively on precious metal dress watches.", "score": 82}, {"slug": "audemars-piguet-14802st", "brand": "Audemars Piguet", "ref": "14802ST", "model": "Royal Oak Jubilée", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-14802st", "description": "The Audemars Piguet Royal Oak Jubilée reference 14802ST was produced in 1992 to commemorate the 20th anniversary of the Royal Oak. Limited to 1,000 total units across all metals, the stainless steel variant comprises 700 pieces. Collectors prioritize this reference for its 39mm \"Jumbo\" case profile and the ultra-thin caliber 2121 movement, which features a 21-karat gold oscillating weight visible through a sapphire exhibition caseback—a first for the Royal Oak line. The dial typically features the \"Petite Tapisserie\" pattern with the AP logo at 12 o’clock. Secondary market prices generally fluctuate between $80,000 and $130,000 depending on condition and the presence of original accessories. A notable variant is the \"Salmon\" or copper-toned dial, which was produced in very limited quantities within the 14802ST run and commands a significant premium at auction, often exceeding $250,000.", "score": 82}, {"slug": "audemars-piguet-26170st", "brand": "Audemars Piguet", "ref": "26170ST", "model": "Royal Oak Offshore", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26170st", "description": "The Audemars Piguet Royal Oak Offshore reference 26170ST was produced from approximately 2005 until 2014. Collectors prioritize this reference for its 42mm stainless steel case and the use of the Calibre 3126/3840 modular chronograph movement, which replaced the earlier Calibre 2226/2841. This reference is noted for its \"Méga Tapisserie\" dial and the transition from rubber-clad pushers and crowns to black ceramic components in later production years. It represents the definitive mid-era aesthetic of the Offshore collection before the introduction of the 44mm models and integrated ceramic bezels. On the secondary market, prices typically range between $18,000 and $26,000 depending on the specific dial configuration and condition. A notable variant is the \"Safari\" execution, distinguished by its cream-colored dial and brown hornback alligator strap, which remains one of the most recognizable iterations of the 26170ST series.", "score": 82}, {"slug": "audemars-piguet-5402st", "brand": "Audemars Piguet", "ref": "5402ST", "model": "Royal Oak Jumbo A-Series", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-5402st", "description": "The Audemars Piguet Royal Oak 5402ST A-Series was produced between 1972 and approximately 1974, representing the first 2,000 units of the original Royal Oak production. Collectors prioritize the A-Series due to its historical status as the debut luxury steel sports watch and its specific design features, including the \"AP\" logo positioned at 6 o'clock rather than 12 o'clock. The reference features a 39mm monobloc case and the ultra-thin Calibre 2121, developed by Jaeger-LeCoultre. Secondary market prices typically fall within the $100,000 to $200,000 range, though exceptional examples with original \"tropical\" dials or full sets can exceed these figures. A notable production detail is the sequential numbering on the case back; collectors specifically seek the earliest \"A-Series\" designations, as later B, C, and D series moved the logo to the 12 o'clock position and saw higher production volumes.", "score": 82}, {"slug": "audemars-piguet-15720st-royal-oak-offshore-diver", "brand": "Audemars Piguet", "ref": "15720ST.OO.A001CA.01", "model": "Royal Oak Offshore Diver", "case_material": "Stainless Steel", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-15720st-royal-oak-offshore-diver", "description": "The Audemars Piguet Royal Oak Offshore Diver reference 15720ST.OO.A001CA.01 was introduced in 2021 and remains in current production. This reference updated the Diver line with the manufacture Calibre 4308, featuring a frequency of 4Hz and a 60-hour power reserve. The 42mm stainless steel case maintains a 300-meter water resistance rating and incorporates a sapphire crystal caseback to display the movement. Collectors distinguish this model by its black \"Méga Tapisserie\" dial, which utilizes white gold applied hour-markers and hands with luminescent coating. A primary technical advancement for this reference is the proprietary interchangeable strap system, allowing for tool-free changes. On the secondary market, this model typically trades between $24,000 and $30,000 depending on condition and completeness. While the black dial is the standard configuration, this 2021 generation also launched with khaki green and navy blue dial variants featuring matching rubber straps.", "score": 82}, {"slug": "audemars-piguet-royal-oak-16202", "brand": "Audemars Piguet", "ref": "16202ST", "model": "Royal Oak Jumbo (current)", "case_material": "Stainless Steel", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-royal-oak-16202", "description": "The Audemars Piguet Royal Oak Jumbo Extra-Thin reference 16202ST entered production in 2022, replacing the long-standing 15202ST to mark the model's 50th anniversary. This reference features the caliber 7121, a modern movement with a higher frequency of 4Hz and an increased power reserve of 55 hours compared to its predecessor. The stainless steel case maintains the traditional 39mm diameter and 8.1mm thickness, paired with a \"Petite Tapisserie\" dial in Bleu Nuit, Nuage 50. Collectors prioritize this reference for its technical upgrades and its adherence to the original 1972 proportions. On the secondary market, prices typically range from $65,000 to $85,000 depending on condition and provenance. Notably, examples produced during the 2022 inaugural year feature a specific \"50 Years\" oscillating weight visible through the sapphire caseback, a detail absent from subsequent production runs, which impacts long-term collectibility.", "score": 82}, {"slug": "audemars-piguet-26574st-royal-oak-perpetual-calendar", "brand": "Audemars Piguet", "ref": "26574ST.OO.1220ST.02", "model": "Royal Oak Perpetual Calendar", "case_material": "Stainless Steel", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-26574st-royal-oak-perpetual-calendar", "description": "The Audemars Piguet Royal Oak Perpetual Calendar reference 26574ST.OO.1220ST.02 was introduced in 2015 and remains in production as a core component of the manufacturer’s high-complication catalog. This reference is distinguished by its 41mm stainless steel case and a blue \"Grande Tapisserie\" dial featuring four sub-dials and a photorealistic moon phase. It houses the self-winding caliber 5134, an ultra-thin movement based on the historic caliber 2120, which includes a 52-week indicator displayed via a central hand pointing to the outer chapter ring. Collectors prioritize this model for its balance of traditional high-complication watchmaking with the durability of steel. On the secondary market, this reference typically trades in the $85,000 to $115,000 range depending on condition and provenance. A notable production detail is the transition from the \"Audemars Piguet\" logo to the applied \"AP\" monogram on later examples within the same reference series.", "score": 82}, {"slug": "audemars-piguet-25554st", "brand": "Audemars Piguet", "ref": "25554ST", "model": "Royal Oak Perpetual Calendar", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25554st", "description": "The Audemars Piguet Royal Oak Perpetual Calendar reference 25554ST was produced between approximately 1986 and 1991. Collectors prioritize this reference as the first Royal Oak to feature a perpetual calendar complication, marking a significant technical expansion for the model line. It utilizes the ultra-thin automatic caliber 2120/2800, derived from a Jaeger-LeCoultre base. The 39mm stainless steel case maintains the \"Jumbo\" proportions but lacks a leap year indicator on the dial, a characteristic of early generation perpetual calendars. Production was limited, with records suggesting fewer than 300 units were manufactured in steel. On the secondary market, these watches typically trade in the low-to-mid six-figure range depending on provenance and condition. A notable variant includes the \"Yves Klein\" dial, featuring a vibrant blue aesthetic, which often commands a significant premium at international auctions due to its rarity and visual distinction.", "score": 82}, {"slug": "audemars-piguet-25654st", "brand": "Audemars Piguet", "ref": "25654ST", "model": "Royal Oak Perpetual Calendar", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25654st", "description": "The Audemars Piguet Royal Oak Perpetual Calendar reference 25654ST was produced between 1982 and 1998, with approximately 429 units manufactured in stainless steel. Collectors prioritize this reference for its 39mm \"Jumbo\" case profile and the ultra-thin caliber 2120/2800, which lacks a leap year indicator on the dial. Unlike modern iterations, the 25654ST features a smooth, non-tapisserie dial, often found in silver or blue, and a closed caseback. Its historical significance lies in its role as a transitional model that maintained the original Genta proportions while housing a complex complication. Secondary market prices typically range from $120,000 to $180,000 depending on condition and provenance. A notable variant includes the \"Yves Klein\" blue dial, which commands a significant premium at auction. Production records indicate that while 800 total units were planned across all metals, the steel version remains the most sought-after for its utilitarian aesthetic.", "score": 82}]}