This circa 1960 Omega Constellation Calendar is a relatively uncommon variation in the vintage Constellation line of watches. The proper beads-of-rice Omega bracelet is present and displays very good condition for its age and will fit a large 7.75″ wrist. The dial and hands are original with some great-looking vintage patina. There is some pitting on the case back. The caliber 504 automatic winding Omega chronometer-grade movement was recently cleaned and is accurate. The winding crown is a replacement Omega. You can always dig up a 10-sided crown. On the wrist, this watch really looks excellent.