Breitling Navitimer Cosmonaut Switzerland, around 1968, Ref. 0819, oversized chronograph caliber 178, in stainless steel, screw back, hand-wound, 24-hour chronograph with 30-minute counter and 12-hour counter, rotating slide rule bezel, original dial in good condition, black rotating bezel, signs of wear, functional, on a later black leather strap, without papers, with box, D 49 mm.
