{"product_id":"longines-ultra-chron-l2-537-4-72-2","title":"Longines Ultra-Chron","description":"\u003cp\u003eIn 1968 Longines built the Ultra-Chron, a high-frequency diver guaranteed accurate to within a minute a month — an extraordinary claim for the era. The reissue keeps the cushion case, the internal rotating bezel and the period dial furniture, and matches the original where it counts: the movement beats at 36,000 vibrations per hour and carries a silicon balance spring, certified as a chronometer to Longines' own Ultra-Chron standard.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eReference:\u003c\/strong\u003e L2.537.4.72.2\u003cbr\u003e\u003cstrong\u003eMovement:\u003c\/strong\u003e Automatic Hi-Beat 36000 with silicon balance spring\u003cbr\u003e\u003cstrong\u003ePower reserve:\u003c\/strong\u003e approx. 52 hours\u003cbr\u003e\u003cstrong\u003eCase:\u003c\/strong\u003e Steel, 37 mm\u003cbr\u003e\u003cstrong\u003eWater resistance:\u003c\/strong\u003e 300 m\u003cbr\u003e\u003cstrong\u003eYear:\u003c\/strong\u003e 2026 — Full set\u003c\/p\u003e","brand":"Longines","offers":[{"title":"Default Title","offer_id":54641379213678,"sku":"L2.537.4.72.2","price":2980.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1019\/2479\/8830\/files\/L2.537.4.72.2.jpg?v=1789807760","url":"https:\/\/luxurygroupstore.com\/de\/products\/longines-ultra-chron-l2-537-4-72-2","provider":"Luxury Group - Rsm. Malta","version":"1.0","type":"link"}