L27 Longines Heritage Military. Reference L2.8188.8.131.52. Watch measures 44mm and is made from steel. Automatic Longines movement caliber L615.3 based upon the ETA 2895-2 workhorse. Sapphire crystal on the front and a closed case back. Waterproof 3ATM or 30 meters. Functions are hours, minutes, small seconds and date. This watch is fitted with the original black alligator strap with steel pin buckle. Naturally this watch is complete with the original box and papers dated December 2016. Please be aware that this watch has been completely serviced by Longines in Switzerland in November 2019 with official warranty left. (papers are included as well as the replaced parts). One of the most beautiful Longines made and incredible readability!