The Breitling Chrono-Matic is a unique chronograph in size and shape. The 1808 has the famous Cal 12 movement which works great. It is priced very fairly, the case and caseback have been polished previously.
 
Details:
 
Brand: Breitling
Model: Navitimer Chrono-Matic
Reference: 1808
Year: 1973 1.416 Million Serial (1st 4 digits visible with a loupe 
Material: Stainless Steel
Dimensions:  48mm
Crystal:  Plexiglass Crystal
Movement: Cal 12 Automatic
Bracelet/Strap: Aftermarket Leather Band
Box/Papers: No/No