Autavia model 7763C mark I, stainless steel compressor case, Valjoux 17 jewel calibre 7730 manual wind movement signed HEUER - LEONIDAS, c.1968, round black dial with applied stainless steel rectangular hour markers, subsidiary dials in white at 3 and 9 for 30 minute register and small seconds respectively, outer seconds track in white, black bezel with minutes and hours 'MH' scale, crown with Heuer logo and flanked by twin cylindrical push buttons; start/stop and flyback respectively, the caseback with AUTAVIA HEUER, on a stainless steel bracelet strap with HLB to the end links, with a signed Heuer foldover clasp with GF for Gay Freres to the interior, no box and papers
The vendor of this lot is also that of the following lot, 154, please see footnote there.