Constellation model, the caseback interior marked 750, signed Omega calibre 712, 24 jewel automatic movement numbered 26531574, c.1980s, signed rectangular two-tone dial formed by two pairs of brown rectangles, one paler, one dark, matched diagonally, four applied gold hour markers at 12, 3, 6 and 9, tiger's eye set crown, on an integrated bracelet strap, signed foldover clasp with Omega logo, marked 750, no box and papers