{"product_id":"longines-ultronic","title":"Longines Ultronic","description":"\u003cp\u003eFor sale, a battery-powered Longines, silver-dialed Ultronic. It dates from the early-to-mid 1970s. The reference 8623 is very similar to the famous Bulova Accutron, by which I mean a tuning fork vibrating at a very high frequency, which gives the watch a smooth sweeping second hand and that unique “hum\" you can hear if you press your ear close to the watch. \u003c\/p\u003e\n\u003cp\u003eThe Ultrasonic sits at a transitional moment in Longines' long history: the brand's step away from pure mechanical calibres and into electronically-regulated timekeeping. \u003c\/p\u003e\n\u003cp\u003eTuning-fork movements were short-lived commercially, though, because cheaper, more accurate quartz calibres arrived within a few years and quickly displaced them industry-wide.\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eTech Specs.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"padding-left: 80px;\"\u003e\u003cstrong\u003eReference\u003c\/strong\u003e: Longines Ultronic Reference: 8623-1\u003cbr\u003e\u003cstrong\u003eYear\u003c\/strong\u003e:  c. 1970s\u003cbr\u003e\u003cstrong\u003eMovement\u003c\/strong\u003e:  Tuning Fork, Cal 6312 (new battery)\u003cbr\u003e\u003cstrong\u003eService History:\u003c\/strong\u003e  No\u003cbr\u003e\u003cstrong\u003eDial:\u003c\/strong\u003e Silver\u003cbr\u003e\u003cstrong\u003eCase\u003c\/strong\u003e:  Stainless steel with screw-in case back.\u003cbr\u003e\u003cstrong\u003eMeasurements: \u003c\/strong\u003e 35mm (case diameter), 42mm lug-to-lug, 10.5mm thickness\u003cbr\u003e\u003cstrong\u003eWater Resistant:\u003c\/strong\u003e  No\u003cbr\u003e\u003cstrong\u003eCrystal:\u003c\/strong\u003e  Acrylic\u003cbr\u003e\u003cstrong\u003eCrown\u003c\/strong\u003e:  signed\u003cbr\u003e\u003cstrong\u003eStrap\/Bracelet:  \u003c\/strong\u003e used black leather strap and Longines buckle\u003cbr\u003e\u003cstrong\u003eLug Widt\u003c\/strong\u003eh:  17mm\u003cbr\u003e\u003cstrong\u003eBox \u0026amp; Papers\u003c\/strong\u003e: No\u003cbr\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e: 3 months\u003c\/p\u003e\n\u003cp style=\"padding-left: 40px;\"\u003eWatches modelled on a 7” (18cms) wrist\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis watch is in fantastic condition considering its age. The dial is virtually blemish free and the lume still shows and matches hands and index pots.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003eDial is almost blemish free; case is sharp.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003esigned crown and buckle.\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003eIndexes and minute markers are so clear and beautifully designed\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003ered second hand setting off the lovely dial\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body break-words whitespace-normal\"\u003eworking well and keeping good time with its new battery.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAnd what you should know:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ea few tiny scratches on case and case-back.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Vintage Chronicle","offers":[{"title":"Default Title","offer_id":54986486120785,"sku":"0058","price":595.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1020\/4148\/5649\/files\/LonginesUltrasonic.jpg?v=1789658789","url":"https:\/\/www.vintagechronicle.co.uk\/products\/longines-ultronic","provider":"Vintage Chronicle","version":"1.0","type":"link"}