Longines flag heritage series is elegant and simple in design, so it has become an eternal classic. This series of watches combines professional technology and aesthetics, and pays tribute to the flag series with a long history. Flagship series is one of the earliest series of Longines watches, and it has been the iconic series of the brand since the end of 1950s. The "military flag" echoes the flag of the commander-in-chief of the fleet hanging on the flagship. In addition, the 18K gold badge on the screw-in bottom cover is decorated with hand-painted enamel caravel sailboat, which is a classic design of this series.