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Here is is a 1964, full sized 36mm. OMEGA constellation calendar with a perfectly restored black dial with silver gilt print, retaining the original steel markers, Dauphine hands and sweep seconds. The steel OMEGA CONSTELLATION case with medallion observatory emblem is in extremely FINE and is without major dings or scratches. Notice the original OMEGA CONSTELLATION winding crown. The automatic winding caliber 551 (chronometer status) OMEGA movement was just cleaned and is quite accurate. This round CONSTELLATION is the largest case available from the era-a fabulous looking watch!