Very nice condition, unpolished Pie-Pans are rare. This one is also double signed on the caseback, instead of the Observatory we have the Alcan caseback that was gifted for 25 years of service within the company. The watch is as honest as possible for its age with normal wear throughout. 
 
Details:
 
Brand: Omega
Model: Constellation Pie Pan
Reference: 168.005
Year: 1963
Material: Stainless Steel
Dimensions:  34mm
Crystal:  Hesalite // Plexiglass
Movement: Automatic Cal. 561
Bracelet/Strap: Wristwatchme Leather Band
Box/Papers: No/No