This is a rare 1930's Duo Dial Longines doctor's oblong wrist watch. Longines Caliber 9.32 movement, manufactured for only seven years, the hand wound, was one of the most sought Longines movements produced in this era. Two body solid hinged case, black enamel indexes for hours and seconds, on the cover. The duo dialed wristwatch and the medical profession came about on account of the high visibility of the separate seconds dial making these watches ideal for use when timing a patient's heartbeat over a sixty second period. Excellent overall condition, with only minor wear. Case measures 21mm wide, excluding crown and 38mm, including the lugs. This rare watch for sale, is the original one published in the John Goldberg Longines book.