HEUER Autatvia reference 1563 chronograph in steel with original Gay Freres stainless steel bracelet, Switzerland around 1971, self winding, screwed down case, turning bezel with 60-minutes graduation, black dial, raised silvered luminous indexes, original luminous hands, date at 6, gold plated movement calibre 15, 17 jewels, diameter approx. 42,5 mm, length approx. 22 cm, overhaul recommended at buyer's expense, nice unpolished condition, condition 2