How do I set the date on my Omega Constellation Day-Date?

How to set the date on your Omega Constellation Day-Date depends on its design, so it's best to follow the instructions that came with your watch. The directions are similar for many Constellation Day-Date timepieces. First, you pull the crown of the watch outward until you feel one click. Should you feel two clicks, push down on the crown until you hear one click. Once you have the crown in place, turn the crown clockwise to move the date forward or counterclockwise to move it backward. When the date is correct, push the crown back into its original position. Find a collection of Omega Constellation watches on 1stDibs.