{"query": "RM 56", "brand": null, "total": 10, "limit": 10, "matches": [{"slug": "richard-mille-rm-56-02", "brand": "Richard Mille", "ref": "RM 56-02", "model": "Sapphire Tourbillon", "case_material": "Sapphire Crystal", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm-56-02", "description": "The Richard Mille RM 56-02 Sapphire Tourbillon was released in 2014 as a limited edition of 10 pieces. This reference is distinguished by its tripartite case milled entirely from solid blocks of synthetic sapphire, a process requiring 960 hours of machining per case. It utilizes the manual-wind Caliber RM56-02, which features a baseplate crafted from grade 5 titanium suspended within the sapphire case by a functional 0.35mm cable-and-pulley system. This architecture creates a visual effect of the movement floating in space while providing enhanced shock resistance. Collectors value the reference for its transparency and its role in evolving the brand’s technical research into sapphire applications. On the secondary market, the RM 56-02 typically commands prices in the $3,500,000 to $4,500,000 range. A unique prototype version of this model was notably produced for the 2015 Only Watch charity auction.", "score": 104}, {"slug": "richard-mille-rm056", "brand": "Richard Mille", "ref": "RM056", "model": "Felipe Massa Sapphire", "case_material": "Sapphire Crystal", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/richard-mille-rm056", "description": "The Richard Mille RM 056 Felipe Massa Sapphire was introduced in 2012 as a limited edition of five pieces to mark the conclusion of the brand’s initial ten-year partnership with the Formula 1 driver. Collectors prioritize this reference for its technical construction, featuring a tripartite case milled entirely from solid blocks of synthetic sapphire, a process requiring over 1,000 hours of machining per watch. It houses the manual-winding Caliber RMCC1, a split-seconds tourbillon movement with power reserve and torque indicators. Due to its extreme rarity and status as the brand’s first full-sapphire model, secondary market prices typically range from $3,000,000 to $5,000,000 depending on provenance. A notable production evolution followed in 2013 with the RM 56-01, which incorporated sapphire baseplates and bridges, further reducing the use of titanium in the movement architecture.", "score": 40}, {"slug": "audemars-piguet-25654ba", "brand": "Audemars Piguet", "ref": "25654BA", "model": "Royal Oak Perpetual Calendar", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25654ba", "description": "Produced between 1982 and 1993, the Audemars Piguet Royal Oak Perpetual Calendar reference 25654BA represents an early evolution of the ultra-thin perpetual calendar complication within the Royal Oak line. Collectors prioritize this reference for its 39mm \"Jumbo\" case proportions and the caliber 2120/2800, a movement derived from a Jaeger-LeCoultre base that allowed for a case thickness of approximately 8.2mm. Unlike modern iterations, the 25654BA lacks a leap year indicator on the dial, a characteristic of early AP perpetual calendars. Approximately 422 units were manufactured in 18k yellow gold. On the secondary market, these timepieces typically trade in the $100,000 to $160,000 range depending on the presence of original paperwork and dial condition. A notable variant includes the \"Yves Klein\" electric blue smooth dial, which commands a significant premium over the standard champagne or white tapisserie versions at international auctions.", "score": 20}, {"slug": "audemars-piguet-25654pt", "brand": "Audemars Piguet", "ref": "25654PT", "model": "Royal Oak Perpetual Calendar", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25654pt", "description": "Produced between 1982 and 1993, the Audemars Piguet Royal Oak Perpetual Calendar reference 25654PT represents the platinum execution of the brand’s second-generation perpetual calendar. Collectors prioritize this reference for its ultra-thin Calibre 2120/2800 movement and the absence of a leap year indicator, which maintains a symmetrical four-subdial layout. The platinum variant is notably rare, with records indicating only 38 units were manufactured out of the total 800 pieces produced across all metals. These watches feature a 39mm \"Jumbo\" case construction without a sapphire caseback, adhering to traditional proportions. On the secondary market, prices typically occupy the mid-to-high six-figure range, often fluctuating between $250,000 and $500,000 depending on dial configuration. A notable production detail includes the transition from the early \"MK1\" dials with smaller Audemars Piguet typography to later versions, with rare \"Tuscan\" textured dials commanding significant premiums at major international auctions.", "score": 20}, {"slug": "audemars-piguet-25654sa", "brand": "Audemars Piguet", "ref": "25654SA", "model": "Royal Oak Perpetual Calendar", "case_material": "Stainless Steel and 18k Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25654sa", "description": "Produced between 1982 and 1993, the Audemars Piguet Royal Oak Perpetual Calendar reference 25654SA is a two-tone execution featuring a stainless steel case and bracelet with an 18k yellow gold bezel and center links. Collectors value this reference for its ultra-thin Caliber 2120/2800 movement and its transitional status, as it lacks a leap year indicator on the dial, maintaining a symmetrical four-subdial layout. The 39mm \"Jumbo\" case dimensions and the absence of the \"Tapisserie\" pattern on many early smooth or matte dials distinguish it from later iterations. Current secondary market prices typically range from $75,000 to $110,000 depending on provenance and condition. Approximately 425 units were produced in this specific steel and gold configuration, making it rarer than the full yellow gold 25654BA. Notable examples featuring \"Yves Klein\" blue dials or early Mark 1 dial signatures often command premiums at international auctions.", "score": 20}, {"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": 20}, {"slug": "audemars-piguet-25668pt", "brand": "Audemars Piguet", "ref": "25668PT", "model": "Quantième Perpétuel Automatique", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25668pt", "description": "The Audemars Piguet Quantième Perpétuel reference 25668PT was produced between approximately 1989 and the mid-1990s as a skeletonized variation of the classic 25657. Collectors value this reference for its 36mm platinum case and the ultra-thin self-winding caliber 2120/2800, which features a hand-finished, openworked movement visible through sapphire crystals on both the front and back. Unlike the solid-dial versions, the 25668 utilizes transparent sub-dials for the day, date, month, and moon phase, showcasing the intricate perpetual calendar mechanism. Production was limited, with fewer than 100 units estimated in platinum. On the secondary market, this reference typically trades in the $60,000 to $90,000 range depending on provenance and condition. A notable production detail is that early examples often lack the leap year indicator, a characteristic of the caliber 2120/2800 before the movement was updated in later years.", "score": 20}, {"slug": "audemars-piguet-25659", "brand": "Audemars Piguet", "ref": "25659", "model": "Royal Oak Perpetual Calendar Gem-Set", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25659", "description": "The Audemars Piguet Royal Oak Perpetual Calendar reference 25659BA was produced during the late 1980s and early 1990s. This 39mm 18k yellow gold model is distinguished by its factory gem-setting, typically featuring a diamond-set bezel and hour markers. It utilizes the ultra-thin automatic caliber 2120/2800, a movement derived from the Jaeger-LeCoultre 920 base. Collectors value this reference for its \"Jumbo\" proportions and its role in the evolution of the perpetual calendar complication within the Royal Oak line. Production numbers for gem-set variants were significantly lower than the standard 25654 or 25820 references, contributing to its scarcity. On the secondary market, these pieces generally command prices in the mid-to-high six-figure range depending on provenance and condition. A notable example featuring a \"Tuscan\" texture dial and factory diamonds sold at auction for over $400,000, reflecting the premium placed on rare dial configurations.", "score": 20}, {"slug": "audemars-piguet-25636pt", "brand": "Audemars Piguet", "ref": "25636PT", "model": "Royal Oak Perpetual Calendar Openworked", "case_material": "Platinum", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25636pt", "description": "The Audemars Piguet Royal Oak Perpetual Calendar Openworked reference 25636PT was produced between approximately 1993 and 1996. Collectors prioritize this reference for its combination of a 39mm \"Jumbo\" ultra-thin case profile and the caliber 2120/2800, a self-winding movement featuring a hand-finished skeletonized structure. Unlike standard perpetual calendars, the 25636 lacks a leap year indicator, a characteristic of early Royal Oak complications. The platinum construction represents the rarest metal variant of this reference, with production estimated at fewer than 35 units. This scarcity, paired with the transition from the \"Quantième Perpétuel\" era to modern aesthetics, places secondary market values in the mid-to-high six-figure range, often exceeding $400,000 depending on provenance. A notable 2023 auction result at Phillips saw a well-preserved example achieve over $600,000, underscoring the demand for low-production platinum skeletonized Royal Oaks among high-level collectors.", "score": 20}, {"slug": "audemars-piguet-25636ba", "brand": "Audemars Piguet", "ref": "25636BA", "model": "Royal Oak Skeletonized Perpetual Calendar", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/audemars-piguet-25636ba", "description": "Produced between approximately 1986 and the mid-1990s, the Audemars Piguet Royal Oak Perpetual Calendar Openworked reference 25636BA is a significant neo-vintage reference housed in a 39mm 18k yellow gold case. Collectors prioritize this model for its ultra-thin self-winding caliber 2120/2800, which lacks a leap year indicator, a characteristic of early perpetual calendar movements. The sapphire dial reveals the hand-finished skeletonized components, while the absence of a sapphire caseback on many early examples distinguishes it from later iterations. Total production for the 25636BA is estimated at 126 units, making it rarer than its non-skeletonized counterparts. On the secondary market, prices typically occupy the mid-to-high six-figure range, depending on the presence of the original box and papers. A notable auction result occurred in 2022 when a well-preserved example sold for over $400,000, reflecting the high demand for early openworked Royal Oaks.", "score": 20}]}