A RARE GENTLEMAN'S STAINLESS STEEL HEUER AUTAVIA CHRONOGRAPH WRISTWATCH CIRCA 1970s, REF. 11630 D: Black dial with part-luminous white inlaid silver batons, orange markers & hands, two grey registers recording hours & minutes, date aperture at 6 o'clock. M: 17 jewel automatic movement signed Heuer, calibre 12. C: Tonneau shaped case with rotating bezel, signed Heuer-Leonidas S.A., numbered, Heuer crown & pushers, case width measures approx 42mm. S: Leather strap.