OMEGA 18k yellow gold gents wristwatch Constellation chronometer, self winding, reference 168005/6, Switzerland around 1965, screwed down case back with representation observatory, additional neutral glazed case back enclosed, neutral 18k yellow gold bracelet, gold plated Pie-Pan dial with raised hour-signs with Onyx inlays, dauphine hands, movement copper coloured, central rotor, calibre 561, flat rim balance, flat hairspring, incablock shock-absorber, swan´s neck regulateur, diameter approx. 34,5 mm, length approx. 18 cm, signs of use revised, condition 2, property of a collector