Heuer Autavia 7863

Heuer: A Good Stainless Steel Calendar Chronograph Wristwatch, signed Heuer, model: Autavia "30 Dato", ref: 7863, circa 1968,

(calibre Valjoux 7732) manual wound lever movement signed , black reverse "panda" dial with baton markers, two silvered dials for seconds and 30 minute register, outer fifth of seconds track, date aperture at 6, case with buttons in the band to operate chronograph, black 60 minute scale rotating bezel, snap-on back signed , inside back cover stamped , case serial number 40mm wide