LONGINES rare 37,5 mm Fly-Back chronograph reference 6075, Switzerland sold according to Longines letter October 1954, manual winding, two piece construction case, snap on case back, original pusher & winding crown, silvered original dial with Arabic luminous numerals, blued luminous hands, rhodium plated movement calibre 30CH with fausses cotes decoration, 18 jewels, glucydur-balance with Breguet-hairspring, beveled cadrature, diameter approx. 37,5 mm, condition 2, rare offered watch in exceptional condition!