{"product_id":"vintage-longines-wristwatch-ultra-chron-8353-3-cal-6651-circa-1972","title":"Vintage Longines Wristwatch ULTRA-CHRON 8353-3 Chronometer Cal 6651 circa 1972","description":"\u003ch4\u003e\u003cstrong\u003eSPECIFICATION\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e Longines ULTRA-CHRON 6651\u003cbr\u003e\u003cstrong\u003eMovement:\u003c\/strong\u003e 6651 25 jewel 28800 b\/ph\u003cbr\u003e\u003cstrong\u003eAge:\u003c\/strong\u003e Circa 1972\u003cbr\u003e\u003cstrong\u003eCase Size:\u003c\/strong\u003e 36mm\u003cbr\u003e\u003cstrong\u003eCase Thickness:\u003c\/strong\u003e 11mm\u003cbr\u003e\u003cstrong\u003eLug to Lug:\u003c\/strong\u003e 40mm\u003cbr\u003e\u003cstrong\u003eLugs:\u003c\/strong\u003e 18mm\u003cbr\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Used Longines watch\u003cbr\u003e\u003cstrong\u003eBox \u0026amp; Papers:\u003c\/strong\u003e No\u003cbr\u003e\u003cstrong\u003eCase Material:\u003c\/strong\u003e Stainless Steel\u003cbr\u003e\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-Months Warranty\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003ePOINTS TO MENTION\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eIn great preowned condition with light wear from use\u003c\/li\u003e\n\u003cli\u003eCase and case back has some light scratches and marks\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFully serviced high Beat chronometer movement\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLongines signed Crown\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePaired with its original signed Longines stainless steel bracelet that fits up to a 7 1\/2 inch wrist\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eA BIT OF TRIVA\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eThe Longines Ultra-Chron was launched in 1966 to celebrate the 100 year anniversary of the company. \u003c\/span\u003e\u003cspan\u003eAt that time it was the world's most accurate watch. It was advertised within a “minute a month”. Hi-Beat movements started to be brought to market by the likes of Seiko in their Lord Marvel line Cal. 5740C. The faster oscillating balance was designed to be less vulnerable to shock, making it a better timekeeper. A pleasant side effect was the incredibly smooth seconds hand. Beating at 28,800 beats per hour, Longines developed a new lubricant “molybdenum disulphide” which proved to remain on the parts longer than traditional oil lubricants. The Ultra-Chron line ran for nine years. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDuring the 1960s and 1970s, the Ultra-Chron collection gained attention, especially in the world of high-performance sports. It was known for its ability to keep precise time under extreme conditions. The Ultra-Chron was marketed as a watch capable of providing \"ultra\" precision, and it helped to solidify Longines' reputation as a manufacturer of quality, high-performance timepieces.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Ultra-Chron was only produced until the mid-1970s, and examples are therefore hard to come by. Despite their rarity, this reference was produced in a variety of case and lug shapes, materials, and dial variations. The thick lugs and cushion-esque overall case shape seen on this example truly set it apart. Not to mention the great dial details.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"2336\" data-end=\"2672\"\u003eThe Longines Ultra-Chron is remembered as one of the pioneering high-frequency mechanical watches and remains a symbol of Longines' ongoing commitment to precision and craftsmanship. Its introduction helped shape the trajectory of watchmaking in the mid-20th century, especially in the context of high-performance mechanical timepieces.\u003c\/p\u003e\n\u003cp data-start=\"2674\" data-end=\"2874\" data-is-only-node=\"\"\u003eWhile the Ultra-Chron may not be as widely recognized as other iconic Longines models, it holds a special place in horological history, marking a significant leap in mechanical watchmaking technology\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eOUR THOUGHTS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Longines Ultra-Chron may fly under the radar compared to other vintage icons, but it’s a true milestone in mechanical watchmaking. This chronometer-rated variant showcases Longines’ dedication to precision and excellence. Every time I see a fine Longines, I’m reminded of the incredible value and rich history these watches carry and this piece is a perfect example. Crafted by one of Switzerland’s most respected manufacturers, it’s a standout vintage watch that any collector would be proud to own.\u003c\/p\u003e","brand":"Past2PresentWatches","offers":[{"title":"Default Title","offer_id":62007833657731,"sku":"LUC5130WO","price":845.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/2397\/4423\/files\/longines-ultrachron-8353-BR-front-_1.jpg?v=1784298833","url":"https:\/\/past2presentwatches.com\/products\/vintage-longines-wristwatch-ultra-chron-8353-3-cal-6651-circa-1972","provider":"Past2PresentWatches","version":"1.0","type":"link"}