OMEGA Constellation chronometer wristwatch in steel reference 168.017, Switzerland around...

OMEGA Constellation chronometer wristwatch in steel reference 168.017, Switzerland around 1969, self winding, screwed down case back with representation observatory, silvered dial with raised indices and tritium-luminous dots, print TÜRLER probably later, silvered hands, date at 3, copper coloured movement calibre 564, 24 jewels, adjusted in 5 positions, swan´s neck regulateur, measures approx. 41 x 35 mm, original glass and winding crown, condition 2, property of a collector