Clean vintage 1937 Longines open face pocket watch with a hinged back cover. The 15 jewel Cal. 37.93 Longines movement winds, sets and has been keeping time for over 48 hours with daily winding. The 44mm stainless steel case is stamped EFCO in the back cover. The white enamel dial has a crisp appearance with no chips or cracks. There is no service history available for this watch.