The Constellation range appeared at Omega in 1952. The movements are certified chronometers and the case backs are engraved with the image of the Geneva Observatory as well as eight stars.
The shape of the case is called "C Shape" on this reference, a variant of the cushion case. A brushed bezel and chamfers are also part of it and give a beautiful play of light to the whole.
You can follow the review of a similar model in this blog post:
Condition: Superb condition! The dial was made by Beyeler (Rolex, Omega subcontractor ...). New back gasket and glass. Case with superb edges. Very good condition for its 51 years.The movement has been completely overhauled, this Omega works perfectly.
