Omega Olympic Rattrapante Round, mechanical Omega Olympic chronograph with tracking pointer, MG 6713, 1966 caliber 1131, diameter 63 mm. Power reserve 37 hours, matte black dial with Arabic Art Déco hourly figures, small permanent seconds at the bottom and 30 minutes at the top (both round guilloche, lowered). Outside, the tenths of a second with dashes and the whole second with numbers on a white wide ring. White staff hands with laces and red rattrapante hands. Start, stop and zero with the crown. Stop and forward the rattrapante with the pusher on the left. Time setting by loosening and depressing the screw on the right.