{"product_id":"ultra-chron-classic-l2-937-4-72-2","title":"Ultra-Chron Classic L2.937.4.72.2","description":"In 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. The new Ultra-Chron is inspired by the aesthetic codes and professional diving features of the 1968 model. These chronometer-certified watches are powered by an exclusive Longines calibre equipped with a silicon balance-spring and resistant to magnetic fields.","brand":"Longines","offers":[{"title":"Default Title","offer_id":52165917901101,"sku":"L2.937.4.72.2","price":3900.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0741\/7852\/7533\/files\/watch-collection-ultra-chron-classic-l2-937-4-72-2-184e77-hero.png?v=1781872863","url":"https:\/\/chawijewelers.com\/products\/ultra-chron-classic-l2-937-4-72-2","provider":"CHAWI JEWELERS","version":"1.0","type":"link"}