BREITLING Navitimer reference 806 gents wristwatch with intermediate wheel chronograph in steel, Switzerland around 1964, manual winding, snap on case back with owners engraving, neutral bracelet with deployant clasp, bidirectional revolving bezel with slide rule-inlay, black shiny-dial with luminous indexes dent, due to age spotty/patinated, luminous hands, copper coloured movement calibre Venus 178, 17 jewels, flat rim balance with Breguet hairspring, incablock shock-absorber, diameter approx. 40 mm, length approx. 19 cm, signs of use due to age, condition case 2-3, condition movement 2