{"reference": {"slug": "mb-f-51", "brand": "MB&F", "ref": "51", "model": "Legacy Machine 101", "case_material": "Stainless Steel", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-51", "description": "The MB&F Legacy Machine 101 in stainless steel was released in 2021 as a limited edition of 33 pieces. This reference is significant for being the first LM101 model to feature a steel case, a material rarely used by the brand outside of the Performance Art series. It houses the LM101 caliber, which was the first movement developed entirely in-house by MB&F, featuring a 14mm bespoke balance wheel suspended above the dial. The aesthetic is defined by a sunray purple dial plate and high-contrast white lacquer sub-dials for time and power reserve. On the secondary market, this specific reference typically trades in the $80,000 to $110,000 range. A notable production detail is that this 2021 edition introduced the \"Evo\" style technical updates to the standard LM101 line, including a larger dial opening and the removal of the \"Legacy Machine\" engraving on the movement bridges."}, "lang": "en", "url": "https://mostexpensivewatches.net/alternatives/mb-f-51", "reference_url": "https://mostexpensivewatches.net/reference/mb-f-51", "review_url": "https://mostexpensivewatches.net/review/mb-f-51", "listing_stats": {"count": 6, "median": 76385.0, "low": 42000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "auction_comp_count": 2, "alternatives": [{"reference": {"slug": "mb-f-57", "brand": "MB&F", "ref": "57", "model": "HMX Black Badger Edition", "case_material": "Stainless Steel and Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-57", "description": "Released in 2016 to celebrate the brand’s tenth anniversary, the MB&F HMX Black Badger Edition is a limited series of 99 pieces, divided into four colorways of 25 units each (with one additional piece). This reference features a 46.8mm x 44.3mm case constructed from grade 5 titanium and stainless steel. It utilizes a jumping hour and trailing minutes module developed in-house, powered by a Sellita base movement. Collectors value this edition for its integration of James Thompson’s proprietary high-efficiency solid lume blocks, which illuminate the engine bay visible under the sapphire crystal. The vertical time display uses dual sapphire prisms to reflect and magnify the flat discs. On the secondary market, these timepieces typically trade between $45,000 and $60,000. A notable production detail is the \"Radar Green\" variant, which remains highly sought after for its distinct visual profile compared to the \"Phantom Blue\" or \"Purple Reign\" versions."}, "score": 16, "why_compare": "Same mb&f collector universe; shared search intent: stainless, steel; similar steel case profile.", "listing_stats": {"count": 1, "median": 98000.0, "low": 98000.0, "high": 98000.0, "brands": 1, "merchants": 1}, "top_listing": {"id": "h_7435399299155", "title": "MB&F HM4 Thunderbolt | Titanium", "brand": "MB&F", "model": "HM4 Thunderbolt | Titanium", "reference": "COHTI_M2057", "price_usd": 98000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Grade 5 Titanium", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "a-collected-man", "merchant_name": "A Collected Man", "image_url": "https://cdn.shopify.com/s/files/1/0606/5325/files/MB_F_HM4_Thunderbolt__titanium_A_Collected_Man_London_Thumbnail_00_1.jpg?v=1725454951", "detail_url": "https://mostexpensivewatches.net/listing/h_7435399299155", "buy_url": "https://mostexpensivewatches.net/out/h_7435399299155", "available": false}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/mb-f-57", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-57"}, {"reference": {"slug": "mb-f-lm101-legacy-machine-white-gold", "brand": "MB&F", "ref": "LM101", "model": "Legacy Machine 101", "case_material": "18k White Gold", "url": "https://mostexpensivewatches.net/reference/mb-f-lm101-legacy-machine-white-gold", "description": "The MB&F Legacy Machine 101 (LM101) in 18k white gold was introduced in 2014 as the first model to feature a movement developed entirely in-house by the brand, with finishing specifications overseen by Kari Voutilainen. This reference measures 40mm in diameter, making it more wearable than the larger 44mm Legacy Machines. It features a suspended 14mm balance wheel above two white lacquer sub-dials displaying time and a 45-hour power reserve. While the original white gold production ran for several years, the model has largely transitioned to \"Evolution\" (EVO) editions, making the classic precious metal versions finite. On the secondary market, these pieces typically trade between $55,000 and $75,000 depending on condition and provenance. A notable 2021 \"Performance Art\" collaboration with H. Moser & Cie used the LM101 architecture, further cementing this specific caliber's importance within the brand’s historical catalog."}, "score": 15, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 8, "median": 76385.0, "low": 42000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/mb-f-lm101-legacy-machine-white-gold", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-lm101-legacy-machine-white-gold"}, {"reference": {"slug": "mb-f-51w12535", "brand": "MB&F", "ref": "51W12535", "model": "Legacy Machine 101", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-51w12535", "description": "The MB&F Legacy Machine 101 reference 51W12535 features an 18k white gold case measuring 40mm in diameter and was produced between 2014 and approximately 2021. This reference is significant as it houses the first movement developed entirely in-house by MB&F, with finishing specifications overseen by Kari Voutilainen. The design prioritizes the 14mm suspended balance wheel positioned above a sunray blue dial, flanked by two floating white lacquer subdials for time and power reserve. Collectors value this model for its wearable dimensions compared to larger Legacy Machines and its historical role in establishing MB&F’s technical independence. On the secondary market, this reference typically trades in the $50,000 to $70,000 range depending on condition and provenance. A notable production shift occurred in 2021 when the model was updated to the \"Evolution\" series, making these original white gold references a distinct closed production chapter."}, "score": 15, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 4, "median": 93885.0, "low": 75000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/mb-f-51w12535", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-51w12535"}, {"reference": {"slug": "mb-f-01", "brand": "MB&F", "ref": "01", "model": "Legacy Machine 1", "case_material": "18k Pink Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-01", "description": "The MB&F Legacy Machine 1 (LM1) in 18k pink gold was introduced in 2011 as the debut model of the Legacy Machine collection and remained in production until approximately 2017. Collectors prioritize this reference for its bespoke movement developed by Jean-François Mojon and finished by Kari Voutilainen, featuring a 14mm flying balance wheel suspended above dual independent time zones. The 44mm case houses a high-domed sapphire crystal and a vertical power reserve indicator, marking the brand’s transition from futuristic designs to nineteenth-century aesthetics. On the secondary market, this reference typically trades between $65,000 and $85,000 depending on condition and completeness. While the initial launch included 18k white gold, the pink gold variant is noted for its contrast against the NAC-treated bridges. A \"Final Edition\" in stainless steel concluded the series, but the pink gold remains the definitive original configuration."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 8, "median": 76385.0, "low": 42000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/mb-f-01", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-01"}, {"reference": {"slug": "mb-f-lm1-legacy-machine-1-red-gold", "brand": "MB&F", "ref": "LM1", "model": "Legacy Machine No. 1", "case_material": "18k Red Gold", "url": "https://mostexpensivewatches.net/reference/mb-f-lm1-legacy-machine-1-red-gold", "description": "The MB&F Legacy Machine No. 1 (LM1) in 18k red gold was introduced in 2011 as the inaugural model of the Legacy Machine collection, remaining in production until the series was retired in 2017. Collectors prioritize this reference for its bespoke movement developed by Jean-François Mojon and Kari Voutilainen, featuring a 14mm suspended balance wheel oscillating above dual independent white lacquer dials. The 44mm case houses a manual-wind caliber with a 45-hour power reserve and a vertical power reserve indicator. As the first round-cased timepiece from a brand previously defined by avant-garde shapes, it represents a pivotal shift in MB&F’s design history. On the secondary market, the LM1 red gold typically trades between $65,000 and $85,000. A notable Final Edition was released in 2017, limited to 18 pieces in stainless steel, marking the definitive end of the LM1 production run."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 9, "median": 77770.0, "low": 42000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 3, "review_url": "https://mostexpensivewatches.net/review/mb-f-lm1-legacy-machine-1-red-gold", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-lm1-legacy-machine-1-red-gold"}, {"reference": {"slug": "mb-f-lm2-legacy-machine-2-platinum", "brand": "MB&F", "ref": "LM2", "model": "Legacy Machine No. 2", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/mb-f-lm2-legacy-machine-2-platinum", "description": "The MB&F Legacy Machine No. 2 (LM2) in platinum was introduced in 2013 as a limited edition of 18 pieces. This reference is no longer in production, as the LM2 series has largely transitioned to redesigned \"Redefining\" editions. Collectors value this specific model for its Jean-François Mojon and Kari Voutilainen-designed movement, which features two oversized flying balance wheels suspended above the dial, connected by a planetary differential that averages their rates. The platinum version is distinguished by its blue sunray dial, a color typically reserved for the brand’s most limited precious metal runs. On the secondary market, the LM2 Platinum generally commands prices in the $110,000 to $140,000 range. A notable production detail is that the original LM2 series utilized high-domed sapphire crystals and more traditional bridge finishing compared to the later, more streamlined LM2 Titanium editions."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 5, "median": 95000.0, "low": 75000.0, "high": 180000.0, "brands": 1, "merchants": 4}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/review/mb-f-lm2-legacy-machine-2-platinum", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-lm2-legacy-machine-2-platinum"}, {"reference": {"slug": "mbf-legacy-machine-perpetual", "brand": "MB&F", "ref": "LMP", "model": "Legacy Machine Perpetual", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/mbf-legacy-machine-perpetual", "description": "The MB&F Legacy Machine Perpetual in platinum (Ref. 03.PL.W) was the launch edition of the model, introduced in 2015 as a limited series of 25 pieces. Collectors prioritize this reference for its movement, the Calibre LM Perpetual, developed by Stephen McDonnell. Unlike traditional modular perpetual calendars, this 581-component manual-wind movement utilizes a \"mechanical processor\" with a default 28-day month to prevent date-skipping errors and damage during adjustment. The platinum case measures 44mm by 17.5mm and features a blue face with a suspended 14mm balance wheel positioned above the sub-dials. On the secondary market, this specific platinum edition typically trades in the $160,000 to $210,000 range depending on condition and provenance. A notable production detail is that this reference preceded the \"EVO\" iterations, retaining the original high-domed sapphire crystal and 30-meter water resistance rating characteristic of the early Legacy Machine aesthetic."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 2, "median": 145000.0, "low": 110000.0, "high": 180000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/review/mbf-legacy-machine-perpetual", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mbf-legacy-machine-perpetual"}, {"reference": {"slug": "mb-f-03", "brand": "MB&F", "ref": "03", "model": "Legacy Machine Perpetual", "case_material": "18k White Gold", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-03", "description": "The MB&F Legacy Machine Perpetual in 18k white gold with a purple dial (Reference 03.WL.P) was released in 2018 as a limited edition of 25 pieces. Collectors prioritize this reference for its caliber, developed by Stephen McDonnell, which replaces the traditional grand levier system with a mechanical processor. This architecture prevents date-skipping errors and allows for independent adjustment of the year and month. The movement features a suspended 14mm balance wheel positioned above a skeletonized dial, showcasing the perpetual calendar complication. The 44mm case is constructed from 18k white gold and houses a 581-component manual-wind movement with a 72-hour power reserve. On the secondary market, this specific purple dial variant typically trades in the mid-to-high six-figure range, often exceeding $180,000 depending on condition. A notable auction result occurred in 2022 when a white gold example reached approximately $200,000 including buyer's premium."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 2, "median": 145000.0, "low": 110000.0, "high": 180000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/mb-f-03", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-03"}, {"reference": {"slug": "mb-f-07", "brand": "MB&F", "ref": "07", "model": "Legacy Machine Perpetual", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-07", "description": "The MB&F Legacy Machine Perpetual in grade 5 titanium (Reference 07.TL.G) was introduced in 2017 as a limited edition of 50 pieces and is no longer in production. Collectors prioritize this reference for its Stephen McDonnell-designed caliber, which replaces the traditional grand levier system with a mechanical processor to prevent date-skipping errors and damage during adjustment. The 44mm case houses a green CVD-treated dial plate with a suspended balance wheel and skeletonized sub-dials. This specific titanium variant is noted for its lighter weight and distinct color profile compared to the gold and platinum iterations. On the secondary market, this reference typically trades in the mid-to-high six-figure range, often between $160,000 and $210,000 depending on condition. A notable auction result occurred in 2022 when a titanium example achieved approximately $190,000, reflecting the sustained demand for the brand’s first integrated perpetual calendar movement."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 2, "median": 145000.0, "low": 110000.0, "high": 180000.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_7734615015633", "title": "MB&F MB&F Legacy Machine Perpetual EVO 07.TR.BU", "brand": "MB&F", "model": "MB&F Legacy Machine Perpetual EVO 07.TR.BU", "reference": "PWW-00010", "price_usd": 180000.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 44.0, "movement": "Automatic", "complications": [], "merchant_slug": "material-good", "merchant_name": "Material Good", "image_url": "https://cdn.shopify.com/s/files/1/0561/5190/0369/files/MB_F_Legacy_Machine_Perpetual_EVO_07.TR.BU.jpg?v=1777064882", "detail_url": "https://mostexpensivewatches.net/listing/h_7734615015633", "buy_url": "https://mostexpensivewatches.net/out/h_7734615015633", "available": true}, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/mb-f-07", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-07"}, {"reference": {"slug": "mb-f-04", "brand": "MB&F", "ref": "04", "model": "Legacy Machine Split Escapement", "case_material": "Titanium", "provenance": "extracted_from_auction_comps", "url": "https://mostexpensivewatches.net/reference/mb-f-04", "description": "The MB&F Legacy Machine Split Escapement (LM SE) in Grade 5 titanium was introduced in 2019 as a limited edition of 33 pieces featuring a green CVD-treated dial plate. This reference utilizes the manual-wind caliber developed by Stephen McDonnell, characterized by its 14mm balance wheel suspended above the dial while the anchor and escape wheel are positioned beneath the movement. The 44mm case houses a dial plate finished with a traditional hand-frosted texture, a signature aesthetic of the Legacy Machine collection. Collectors value this specific reference for its lightweight construction and the technical complexity of the split escapement architecture. On the secondary market, these timepieces typically trade in the low-to-mid six-figure range, often between $110,000 and $140,000 depending on condition. A notable production detail is that this titanium edition followed the initial 2017 launch of the four gold launch editions."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 2, "median": 75885.0, "low": 74000.0, "high": 77770.0, "brands": 1, "merchants": 2}, "top_listing": {"id": "h_7226297909335", "title": "MB&F MB&F Legacy Machine Split Escapement EVO", "brand": "MB&F", "model": "MB&F Legacy Machine Split Escapement EVO", "reference": "40992012", "price_usd": 77770.0, "currency": "USD", "condition": "excellent", "box_papers": "full_set", "year": null, "case_material": "Stainless Steel", "case_size_mm": 40.0, "movement": "Automatic", "complications": [], "merchant_slug": "analog-shift", "merchant_name": "Analog/Shift", "image_url": "https://cdn.shopify.com/s/files/1/0809/1255/files/AS09739_40992012_MBF_LEGACYMACHINE-6.jpg?v=1730498372", "detail_url": "https://mostexpensivewatches.net/listing/h_7226297909335", "buy_url": "https://mostexpensivewatches.net/out/h_7226297909335", "available": false}, "auction_comp_count": 2, "review_url": "https://mostexpensivewatches.net/review/mb-f-04", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-04"}, {"reference": {"slug": "mb-f-lm-thunderdome-platinum", "brand": "MB&F", "ref": "LM Thunderdome", "model": "Legacy Machine Thunderdome", "case_material": "Platinum", "url": "https://mostexpensivewatches.net/reference/mb-f-lm-thunderdome-platinum", "description": "The MB&F Legacy Machine Thunderdome in platinum was released in 2019 as a limited edition of 33 pieces. This reference is significant for debuting the \"TriAx\" mechanism, a triple-axis tourbillon developed by Eric Coudray and Kari Voutilainen. The movement features three axes rotating at different speeds—eight, twelve, and twenty seconds—incorporating a Potter escapement and a hemispherical balance wheel. The platinum case measures 44mm in diameter and houses a light blue guilloché dial plate crafted in Voutilainen’s workshop. Collectors value this model as the fastest triple-axis tourbillon ever produced and for its unique technical architecture. On the secondary market, the platinum Thunderdome typically commands prices in the mid-to-high six-figure range, often between $450,000 and $600,000 depending on provenance. A notable production variant includes a five-piece \"The Hour Glass\" edition featuring a tantalum case and a dark blue guilloché dial."}, "score": 13, "why_compare": "Same mb&f collector universe; shared search intent: legacy, machine.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 0, "review_url": "https://mostexpensivewatches.net/review/mb-f-lm-thunderdome-platinum", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-lm-thunderdome-platinum"}, {"reference": {"slug": "mb-f-hm2-sapphire-titanium", "brand": "MB&F", "ref": "HM2", "model": "Horological Machine No. 2", "case_material": "Sapphire and Titanium", "url": "https://mostexpensivewatches.net/reference/mb-f-hm2-sapphire-titanium", "description": "The MB&F Horological Machine No. 2 (HM2) Sapphire Vision (SV) in titanium was produced between 2008 and 2011 as part of the brand’s early experimental era. Collectors target this reference for its complex architectural case, which features a transparent sapphire crystal top plate secured by a titanium base and a distinctive rubber gasket system. The watch utilizes the HM2 engine, a Jean-Marc Wiederrecht-designed movement built on a Girard-Perregaux base, featuring the world’s first mechanical movement combining instantaneous jumping hours, concentric retrograde minutes, retrograde date, and a bi-hemisphere moon phase. This specific variant was limited to 25 pieces, contributing to its scarcity. On the secondary market, the HM2 SV titanium typically trades in the $50,000 to $80,000 range depending on condition and provenance. A notable production detail is the use of over 100 components in the case construction alone to ensure water resistance despite the modular sapphire design."}, "score": 11, "why_compare": "Same mb&f collector universe; shared search intent: machine.", "listing_stats": {"count": 0, "median": 0, "low": 0, "high": 0}, "top_listing": null, "auction_comp_count": 1, "review_url": "https://mostexpensivewatches.net/review/mb-f-hm2-sapphire-titanium", "alternatives_url": "https://mostexpensivewatches.net/alternatives/mb-f-hm2-sapphire-titanium"}]}