This is a rare Leonidas CP1 Chronograph powered by a Cal. Val. 222 fly-back . A.M.I. issued, Aeronautica Militare Italiana (italian air forces) the watch is in overall excellent condition and works properly it measures 39mm, without crown, the back case engraved A.M.I. 1964. This model is rarer then CP2 because was made in a few pieces, this one is fitted by the awesome and rarest bakelite bezel.