Reply To: Omega Constellation

[Bob Tascione]

Hi Charles,
One way to check if the calibre is one of the 1000 series without opening the case is to listen to the beat. The 1000s are all high beat (28,800) where the 500’s and 700’s are slower beat (19,800). If you are able to get into the back then I think there should be a small indented “button” near the stem that can be pressed to release the stem. Pretty sure but I could be wrong as I don’t have a movement here to check.
Let us know what you come up with Charles,
Bob