{"product_id":"longines-heritage","title":"Longines Twenty-Four Hours","description":"\u003ch3\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eReference L2.751.4.53.4 revives a design Longines built for Swissair navigators in the 1950s, housed in a 47.5mm polished stainless steel case. The matte black dial is laid out with a full 24-hour scale rather than the usual twelve, so the hour hand makes just one complete rotation per day — a genuine point of difference from a conventional dial, not just a styling choice. Painted Arabic numerals treated with Swiss Super-LumiNova sit against the matte surface, with silvered polished hands tracking hours, minutes, and a sweeping centre seconds. The date window is set at three o'clock, and a sapphire crystal with anti-reflective coating keeps the dial clear under any light.\u003c\/p\u003e\n\u003cp\u003eInside is Longines' automatic Caliber L704.3, a self-winding movement built specifically to complete one full dial rotation every 24 hours, running at 28,800 vph across 24 jewels with approximately 48 hours of power reserve. A hinged case back flips open to a transparent window onto the movement, engraved on the inside with details referencing the watch's Swissair navigation heritage. The watch is fitted on a black alligator leather strap, closing on a tang buckle, with an additional extension strap included for wear over a flight suit. Water resistance is rated to 30 meters, in keeping with the watch's instrument-grade rather than diving-grade design brief.\u003c\/p\u003e\n\u003cp\u003eCondition: mint. Presented as a full set.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003e\u003cstrong\u003e\u003cbig\u003eMovement\u003c\/big\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eAutomatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCalibre\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eL704.3\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Reserve\u003c\/td\u003e\n\u003ctd\u003e48 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJewels\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunctions\u003c\/td\u003e\n\u003ctd\u003eHours, minutes, seconds, date, 24-hour dial rotation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003e\u003cstrong\u003e\u003cbig\u003eCase\u003c\/big\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Dimensions\u003c\/td\u003e\n\u003ctd\u003e47.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Thickness\u003c\/td\u003e\n\u003ctd\u003e13.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWater Resistance\u003c\/td\u003e\n\u003ctd\u003e30 m \/ 100 feet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCrystal\u003c\/td\u003e\n\u003ctd\u003eSapphire, anti-reflective coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCase Back\u003c\/td\u003e\n\u003ctd\u003eTransparent, hinged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDial Colour\u003c\/td\u003e\n\u003ctd\u003eBlack, matte\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDial Indicators\u003c\/td\u003e\n\u003ctd\u003ePainted luminous Arabic numerals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"50%\"\u003e\u003cstrong\u003e\u003cbig\u003eBracelet\u003c\/big\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"50%\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBracelet Material\u003c\/td\u003e\n\u003ctd\u003eBlack alligator leather strap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClasp\u003c\/td\u003e\n\u003ctd\u003eTang buckle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eClasp Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003ch4\u003eInclusions\u003c\/h4\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFull set\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Longines","offers":[{"title":"Default Title","offer_id":67844114710824,"sku":"L2.751.4.53.4","price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2517\/4164\/files\/Screenshot2026-10-07at5.32.41pm.png?v=1791354768","url":"https:\/\/swissemporium.com.au\/products\/longines-heritage","provider":"Swiss Emporium","version":"1.0","type":"link"}