{"product_id":"longines-l2-537-4-72-6","title":"Longines Heritage Ultra-Chron Classic 37mm Automatic L2.537.4.72.6","description":"\u003ch2\u003eRevisiting a classic, high-frequency pioneer\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eIn 1968, Longines launched the Ultra-Chron Diver, the first dive watch equipped with a high-frequency movement. At the time, Longines had already established itself as a pioneer in high-frequency technology. As early as 1910, the winged hourglass brand created the first high-frequency timekeeping device capable of measuring 1\/10th of a second. In 1959, Longines developed the first high-beat movement for a wristwatch, an observatory chronometer that set new records in terms of accuracy.\u003c\/p\u003e\n\u003cp\u003eThis new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. This chronometer-certified watch is powered by a Longines-exclusive high-beat calibre equipped with a silicon balance-spring and resistant to magnetic fields. \u003c\/p\u003e","brand":"Longines","offers":[{"title":"Default Title","offer_id":53492444168564,"sku":"L2.537.4.72.6","price":4000.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2930\/0774\/files\/L2.537.4.72.6.jpg?v=1760093034","url":"https:\/\/topperjewelers.com\/products\/longines-l2-537-4-72-6","provider":"Topper Fine Jewelers","version":"1.0","type":"link"}