This is an excellent vintage Omega De Ville 166.033 which dates to the late 1960's. 
 
The watch has a stainless steel case which measures 34.5mm in diameter excluding the signed Omega crown. For its age, the case is in very good condition. 
 
The automatic movement has been professionally serviced and comes with 12 months warranty from the Horologist (As of August 26). The paperwork will comes with the watch. 
 
The dial is also in nice condition with minor signs of wear. 
 
It has been fitted with a new crystal and new leather strap with vintage Omega buckle. It also comes in a vintage Omega box.