Omega constellation a gold plated steel wrist watch with day and date Indication circa 1965. Dial: linen, applied baton hour markers, day and date aperture at 3. Calibre: cal. 751 automatic, 24 jewels. Movement number: 29104576. Case: polished gold capped tonneau-form, screw down case back embossed with astronomical observatory emblem. Closure: Omega black leather. Dimensions: 35 mm diameter. Signed: case, dial and movement. Accessories: none