Longines Nonius Chronograph Fly-Back ref. 8225The 1 10thSecond Chrono with Rare Bracelet We are offering a rare and unusual Longines Chronograph the Nonius Fly Back. Named after the Portuguese mathematician P Nunes, the Nonius is a minutes, seconds and 1 10th second timer. Housed in a robust, 41mm pillow form steel case, this watch houses the original single minutes sub register dial in perfect condition. The yellow chronograph hand features a unique attached scale that can measure 1 10ths of a