this one found at an aunction, with this description?
“Automatic” Vacheron & Constantin, Genève, “Automatic”, No. 587829, case No. 428827, Ref. 7397. Made circa 1970. Fine and rare, tonneau-shaped, center-seconds, self-winding, water-resistant, 18K white gold gentleman's wristwatch with date.
Two-body, polished and brushed, screwed-down case back,brushed bezel. D. "Satiné" silver, “sunburst”, with applied lapidatedwhite gold indexes and date aperture. White gold “bâton”hands. M. Cal. K 1072/1, stamped with the Seal of Geneva qualityhallmark, rhodium-plated, "fausses-côtes" decoration, 29jewels, straight line lever escapement, beryllium balance withtiming screws adjusted for heat, cold, isochronism and fivepositions, shock-absorber, Breguet balance-spring, swanneckmicrometer regulator, 18K gold-edge rotor with rubyroller bearings.Dial, case and movement signed.Diam. 35 mm. Thickness. 11 mm.
Pic and text credit to Antiqu...... (I hope this respects Purists rules, if not please delete)
Hope it could helps you,
regards,
Patrickh