Automatic Constellation Chronometer model 149.02, early 1960s, case marked 18K 750, signed Omega calibre 561 automatic movement numbered 19406443, round silver-coloured pie pan dial with shimmer, applied black and gold baton hour markers, date aperture at 3, gold sword hands with black inserts, centre seconds hand, crown with Omega logo, caseback with observatory logo, interior numbered 14902/3 SC-62, on a slightly later Omega gold-plated strap with signed clasp with No.12 and 1503/1, with additional Omega strap, with papers, no box