what type crown do you need for a longines vintage watch
Based on the model produced by a Longines during 1920 and 1930, known as the Avigation Watch Type A-7 the The Longines Avigation Oversize Crown includes several features in order to please the aficionados of aviation watches and pilot timepieces. Picture of the original Avigation Watch Type A-7. What's new with this new Longines Aviation model?