{"query": "6B", "brand": null, "total": 9, "limit": 10, "matches": [{"slug": "iwc-6b", "brand": "IWC", "ref": "6B", "model": "Mark XI", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/iwc-6b", "description": "The IWC Mark XI 6B/346 was produced from 1948 until the early 1980s, primarily serving as a navigation timepiece for the British Royal Air Force. Collectors value this reference for its chronometer-grade Calibre 89 manual-wind movement, which features a hacking seconds function and a soft-iron inner cage for magnetic resistance. The 36mm stainless steel case houses a matte black dial characterized by a white outer minute track and the \"Broad Arrow\" military mark. Early versions featured radium luminous material, later replaced by tritium, denoted by a circled \"T\" on the dial. On the secondary market, these watches typically trade between $7,000 and $12,000 depending on provenance and military markings. A notable variant is the \"White 12\" dial, an early production run featuring a luminous numeral at the twelve o'clock position instead of the standard triangle, which commands a significant premium at auction.", "score": 197}, {"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": 82}, {"slug": "bovet-cp0016", "brand": "Bovet", "ref": "CP0016", "model": "Butterfly Tourbillon", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/bovet-cp0016", "description": "The Bovet Butterfly Tourbillon reference CP0016 was produced during the mid-2010s as part of the Fleurier collection. This 18k pink gold model features the caliber 13BA01, a hand-wound movement with a seven-day power reserve. Collectors focus on the Amadeo convertible case system, which allows the 45mm timepiece to function as a wristwatch, pocket watch, or desk clock without tools. The dial is characterized by a symmetrical layout featuring a flying tourbillon at 6 o’clock and a decorative butterfly motif integrated into the bridge work. Due to the high level of hand-finishing and limited annual production volumes, these pieces are rare on the secondary market. Current market values typically fall within the $60,000 to $95,000 range depending on condition and provenance. A notable production detail is the use of a chain-driven power reserve indicator, a technical signature of Bovet’s high-complication manufacturing.", "score": 70}, {"slug": "bovet-recital-26", "brand": "Bovet", "ref": "R260008", "model": "Récital 26 Brainstorm", "case_material": "18k Red Gold", "url": "https://mostexpensivewatches.net/reference/bovet-recital-26", "description": "The Bovet Récital 26 Brainstorm Chapter One, reference R260008 in 18k red gold, was introduced in 2019 as a limited production model. Collectors prioritize this reference for its \"writing slope\" case design, which is tapered to optimize visibility of the movement from multiple angles. It houses the manual-wind caliber 17DM04-SMP, featuring a patented double-face flying tourbillon, a three-dimensional moon phase, a big date, and a ten-day power reserve from a single barrel. The red gold variant typically features a hemispherical dial in blue quartz or green quartz. On the secondary market, this reference generally commands prices in the low-to-mid six-figure range, often between $160,000 and $220,000 depending on condition. While the Chapter One was also produced in sapphire crystal cases, the R260008 is noted for its use of precious metal in the structural frame, a departure from the fully transparent aesthetic of the initial launch.", "score": 70}, {"slug": "breguet-tradition-7027-yellow-gold", "brand": "Breguet", "ref": "7027BA/11/9V6", "model": "Tradition 7027", "case_material": "18k Yellow Gold", "url": "https://mostexpensivewatches.net/reference/breguet-tradition-7027-yellow-gold", "description": "The Breguet Tradition 7027BA/11/9V6, introduced in 2005 and discontinued around 2014, represents the inaugural reference of the Tradition collection. Collectors value this 37mm 18k yellow gold model for its caliber 507DR, which utilizes a symmetrical architecture inspired by Abraham-Louis Breguet’s late 18th-century souscription watches. The movement is fully exposed on the dial side, featuring sandblasted finishes, a pare-chute shock protection system, and a power reserve indicator visible on both the front and back. Its compact case size and yellow gold composition distinguish it from later, larger iterations. On the secondary market, this reference typically trades between $14,000 and $19,000 depending on condition and provenance. A notable production detail is the transition from the early \"frosted\" finish to a more uniform NAC coating in later years, with the original yellow gold 7027BA remaining the most historically accurate tribute to the brand's antique pocket watches.", "score": 70}, {"slug": "breguet-1176", "brand": "Breguet", "ref": "1176", "model": "Tourbillon No. 1176", "case_material": "18k Yellow Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-1176", "description": "The Breguet No. 1176 is a historical pocket watch completed in 1809, representing Abraham-Louis Breguet’s first four-minute tourbillon and the third tourbillon ever produced. Encased in 18k yellow gold, the watch features an échappement naturel, a power reserve indicator, and a subsidiary seconds dial. Collectors value this reference for its technical significance as the earliest tourbillon available for private acquisition, as the first two were retained by Breguet or gifted. The movement utilizes a gold gear train and a specialized chronometer escapement. While not a modern production reference, its historical provenance places it at the apex of the secondary market; it last appeared publicly at auction in 2014, where it realized a price of approximately 821,000 CHF. This specific piece is noted for its transition from the experimental No. 169 to a functional commercial format, marking a pivotal development in nineteenth-century precision timekeeping.", "score": 70}, {"slug": "breguet-2516", "brand": "Breguet", "ref": "2516", "model": "Tonneau Perpetual Calendar", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-2516", "description": "The Breguet Classique Perpetual Calendar reference 2516 in 18k white gold was produced during the late 1990s and early 2000s and is no longer in current production. Collectors target this reference for its tonneau-shaped case, which deviates from the brand’s traditional round silhouettes while maintaining signature elements like a hand-guilloché silvered gold dial and blued steel Breguet hands. It is powered by the automatic Caliber 502, an ultra-thin movement featuring an off-center rotor. The dial layout includes a moon phase indicator at 1 o'clock and a leap year indicator at 6 o'clock. On the secondary market, this reference typically trades between $18,000 and $25,000 depending on condition and the presence of original accessories. A notable production detail is the use of a solid case back on most examples, though some later iterations featured sapphire displays to showcase the movement finishing.", "score": 70}, {"slug": "breguet-956", "brand": "Breguet", "ref": "956", "model": "Diver's Flyback Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-956", "description": "The Breguet Marine Diver’s Flyback Chronograph reference 5827, often associated with the caliber 583Q/1, was introduced in the mid-2000s and remained a catalog staple for over a decade before being superseded by the 5527. Collectors target this reference for its Lemania-based movement featuring a central chronograph minutes hand, a complication that enhances legibility during underwater use. The 42mm stainless steel case features the brand’s signature coin-edge fluting and a wave-patterned guilloché dial. While not a limited edition, its production volume was lower than contemporary sports watches from competing high-end manufactures. On the secondary market, these timepieces typically trade between $12,000 and $18,000 depending on the presence of the original rubber strap or steel bracelet. A notable variant includes the boutique-exclusive versions with blue dials, which often command a premium over the standard silver or black dial configurations at auction.", "score": 70}, {"slug": "breguet-586", "brand": "Breguet", "ref": "586", "model": "Triple Calendar Chronograph", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/breguet-586", "description": "The Breguet Triple Calendar Chronograph reference 586 is a vintage manual-wind timepiece produced during the mid-20th century, primarily in the 1950s and 1960s. Collectors prioritize this reference for its Valjoux 72C movement, a column-wheel caliber integrated with a full calendar complication. The 35mm stainless steel case features the brand's signature coin-edge fluting on the mid-case and downturned lugs. The dial typically displays a date scale on the outer periphery indicated by a central pointer hand, with day and month apertures positioned below twelve o'clock. Due to the limited production numbers of steel Breguet chronographs from this era, examples are rare. On the secondary market, these watches generally command prices in the $40,000 to $70,000 range depending on condition and provenance. A notable example appeared at a 2016 Christie’s auction, where a well-preserved steel 586 realized approximately $62,500.", "score": 70}]}