Omega Geneve models are quite common and their C Shape cases are the less loved ones of the Omega line-up from the 60's but this one is special. The National Optical print on the dial makes it very special and unique, no other one has appeared on the market so far which makes it cool and affordable. The watch is good overall with signs of previous polish.  Crown belongs to a Constellation but have the original crown which will be replaced at no extra cost if desired.
 
Details:
 
Brand: Omega
Model: Geneve
Reference: 165.026
Year: 1960's
Material: Stainless Steel
Dimensions:  35mm
Crystal:  Plexiglass non Omega Signed
Movement: Automatic Cal 552
Bracelet/Strap: Vintage NOS Leather Band
Box/Papers: No/No