This watch represents the very best of Omega. In the 60s, the Constellation series was Omega's absolute top series which is why this watch is COSC certified by the Swiss Chronometer Institute. Only the best and most precise watches achieved this certification, and thus the watch bears the text "officially certified" on the dial.
 
In addition to being from Omega's absolute top series, this watch features the so-called "pie pan" dial which is the most sought-after of the vintage constellation watches. The dial has a sunburst finish and appears in fantastic condition. 
 
Brand: Omega
Model: Constellation
Vintage: 60s
Material: Steel
Movement: Mechanical with automatic winding
Diameter: 34mm without crown