Heuer. A stainless steel chronograph wristwatch Autavia circa 1970 Manual winding movement, fully jewelled, black dial, applied baton indexes, luminous baton hands, outer minute and 1/5 seconds track, subsidiary dials for constant seconds, 30 minute and 12-hour registers, revolving bezel calibrated for tachometer scale, circular case with chronograph pushers in the band, case, dial and movement signed, diameter 39 mm.