{"title":"Blancpain","description":"\u003ch2\u003e\n\u003cspan class=\"_animating_muyve_10\"\u003ePre-Owned Blancpain \u003c\/span\u003e\u003cspan class=\"_animating_muyve_10\"\u003eWatches | Authenticated, With Papers\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan class=\"_animating_muyve_10\"\u003eBlancpain holds a specific place in the history of the dive watch that no other brand can claim. In 1953, Blancpain produced the world's first commercially available dive watch, predating every other manufacturer's entry into the category. That founding credential underpins the brand's entire modern identity and gives the Fifty Fathoms a legitimacy in the dive watch market that watches with more recent naval heritage cannot match. Bo Knows Luxury carries a curated selection of pre-owned Blancpain Fifty Fathoms watches, each authenticated and presented with available documentation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"_animating_muyve_10\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0946\/9637\/4553\/files\/blancpain_first.jpg?v=1787062011\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch3\u003e\u003cspan class=\"_animating_muyve_10\"\u003eWhat Makes Blancpain Watches Unique\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eThe Original Dive Watch\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe story of the Fifty Fathoms begins with two French naval officers, Robert Maloubier and Claude Riffaud, who in 1952 approached Blancpain with a specification for a dive watch that could withstand real operational use by combat swimmers. The watch they developed together defined the category: a rotating timing bezel, high water resistance, luminous indices, and a case design that could be worn over a wetsuit. Every dive watch produced since, regardless of brand, descends from the design framework established by that original collaboration.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eBlancpain's claim to have invented the dive watch is not marketing. It is a documented historical fact, and it matters to collectors who want an instrument with genuine provenance rather than an aesthetic reference to naval heritage.\u003c\/p\u003e\n\u003cp dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eIn-House Movement Philosophy\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eBlancpain produces its movements in-house at its Le Brassus manufacture. The Calibre 1315 found across the contemporary Fifty Fathoms family is a benchmark movement in the luxury dive watch segment, offering 120 hours of power reserve, 28,800 vph frequency, 35 jewels, and 227 components in a silicium-regulated architecture. Five days of autonomy at this level of finishing is exceptional; most competitors at comparable price points offer between 42 and 72 hours. The movement is visible through a sapphire display caseback on most references.\u003c\/p\u003e\n\u003ch3 dir=\"ltr\" class=\"mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eThe Fifty Fathoms Collection\u003c\/h3\u003e\n\u003cp dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFifty Fathoms Original (5015 Family)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe original Fifty Fathoms in its contemporary form is the largest and most overtly tool-watch-oriented reference in the collection. The 5015-12B40-O52A in 45mm titanium with a blue dial represents the current production interpretation of the founding reference: a large, serious dive watch built for use rather than display. Titanium construction keeps the weight manageable despite the case size, and the 300m water resistance remains relevant to serious divers. Pre-owned examples with full sets in unpolished condition are consistently in demand among collectors who prioritize authenticity of purpose over wearability in formal contexts.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eFifty Fathoms Bathyscaphe (5000 Family)\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe Bathyscaphe is the more everyday-oriented interpretation of the Fifty Fathoms concept. At 43mm it wears considerably more comfortably than the 45mm original while retaining the same in-house Cal. 1315 movement, the same 300m water resistance, and the same unidirectional timing bezel. The slimmer case profile makes it genuinely versatile in a way that the full-size Fifty Fathoms is not.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe 5000-0240-O52A in grey ceramic with a blue dial is among the most visually refined references in the family. The satin-brushed ceramic case holds its finish far better than steel over years of wear, making pre-owned examples in complete condition particularly attractive to buyers who want a watch that looks new despite being pre-owned. The 5000-1110-B52A offers the same case architecture with different dial and bezel configurations for buyers who prefer a different color profile.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe key specification that defines the Bathyscaphe's value in the pre-owned market is the Cal. 1315's 120-hour power reserve. At a price point where most competitors offer 42 to 72 hours, five days of autonomy is a material advantage for anyone who rotates multiple watches.\u003c\/p\u003e\n\u003ch4 dir=\"ltr\" class=\"mt-2 -mb-1 text-base font-bold\"\u003eFifty Fathoms Bathyscaphe Chrono Flyback (5200 Family)\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe Bathyscaphe Chrono Flyback adds a flyback chronograph complication to the Bathyscaphe platform, using the in-house Calibre 5025F. A flyback chronograph allows the timer to be reset and restarted with a single pusher press rather than requiring three sequential actions; it is a practical complication derived from aviation timing requirements. The 5200-0130-NABA in ceramic is the reference most frequently encountered in the pre-owned market and is a strong performer given the combination of in-house chronograph movement, ceramic construction, and the Fifty Fathoms dive watch credentials.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0946\/9637\/4553\/files\/Blancpain-NEW.webp?v=1787062077\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e \u003c\/p\u003e\n\u003ch3 dir=\"ltr\" class=\"mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eBuying and Selling Pre-Owned Blancpain\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eBo Knows Luxury buys, sells, and trades pre-owned Blancpain Fifty Fathoms watches directly. All watches are inspected prior to sale, pressure-tested where applicable, and presented with available original documentation. On ceramic references, bezel condition and the Liquidmetal scale markers are the details most affecting value; ceramic holds its finish well but the bezel scale on older references can show wear that steel examples do not. References in complete sets with box, papers, and additional straps are noted individually in listings. If you have a Blancpain to sell or trade, use the Sell or Trade form on this site with details and photographs.\u003c\/p\u003e","products":[{"product_id":"preowned-blancpain-fifty-fathoms-5015-12b40-o52a-45mm-titanium-blue-dial","title":"Preowned Blancpain Fifty Fathoms 5015-12B40-O52A 45mm Titanium Blue Dial","description":"\u003cp\u003e\u003cspan style=\"color: #03181c;\"\u003e\u003cb\u003eCONTACT US FOR AVAILABILITY OF THIS ITEM\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReference: 5015-12B40-O52A\u003c\/li\u003e\n\u003cli\u003e45mm satin-finished titanium case\u003c\/li\u003e\n\u003cli\u003eSunburst blue dial with luminous hour markers and date display between 4 and 5 o'clock\u003c\/li\u003e\n\u003cli\u003eSapphire-topped unidirectional rotating bezel with luminous scale\u003c\/li\u003e\n\u003cli\u003eCalibre 1315, automatic, in-house, 120-hour power reserve\u003c\/li\u003e\n\u003cli\u003e300m water resistance\u003c\/li\u003e\n\u003cli\u003eMSRP: $20,700 plus tax\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(3, 24, 28);\"\u003e.\u003c\/span\u003e\u003cbr\u003e\u003cstrong style=\"color: rgb(3, 24, 28);\"\u003eCondition: \u003c\/strong\u003e\u003cspan style=\"color: rgb(3, 24, 28);\"\u003eExcellent, near mint pre-owned condition with faint wear on the case, strap, and pin buckle. This timepiece has been professionally pressure-tested and thoroughly validated to confirm all functions operate within factory specifications. \u003c\/span\u003e\u003cbr\u003e\u003cstrong style=\"color: rgb(3, 24, 28);\"\u003e.\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(3, 24, 28);\"\u003eI am a US Air Force veteran with hundreds of successful deals completed across various watch enthusiast forums, and via my network. I am always happy to share references or testimonials with any interested buyers.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eBrand: Blancpain\u003cbr\u003eModel: Fifty Fathoms\u003cbr\u003eReference: 5015-12B40-052A\u003cbr\u003eCase Material: Titanium\u003cbr\u003eBracelet Type: N\/A\u003cbr\u003eBracelet Material: Textile\u003cbr\u003eSize: 45mm\u003cbr\u003eDial Color: Blue\u003cbr\u003eBezel Material: Titanium\u003cbr\u003eBezel Type: N\/A\u003cbr\u003eCondition: Pre-owned\u003cbr\u003eMovement: Automatic\u003cbr\u003eCrystal: N\/A\u003cbr\u003eWater Resistance: Up to 300m\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eStock ID: 843FN\u003c\/p\u003e","brand":"Blancpain","offers":[{"title":"Default Title","offer_id":52739984851225,"sku":"843FN","price":11200.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9637\/4553\/files\/9972f4afafb0fc473a8e0c663c1886cf.jpg?v=1779308470"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0946\/9637\/4553\/collections\/9972f4afafb0fc473a8e0c663c1886cf.jpg?v=1787062128","url":"https:\/\/boknowsluxury.com\/collections\/blancpain.oembed","provider":"Bo Knows Luxury","version":"1.0","type":"link"}