Nobody will know information about this watch as a cal 265 manual winding Constellation never existed.
The caliber 265 is a nice 30mm movement, but it was never offered as a Constellation. The dial has had the Constellation and chronometre logos poorly faked. Too bad, they ruined a nice watch
To put some concrete data to it, your watch has an 11.5 million serial number dating it to ~1948... The constellation wasn't even introduced untill 1952 (approximate serial # 13 million).