This is rare a vintage Breitling Chrono-Matic, Reference 2110 model from around 1969-1970. This model is highly regarded by collectors as one of the world's first automatic chronographs, developed by a consortium that included Breitling, Heuer, and Hamilton. This particular watch has an unusual dial and handset combination which is rarely seen. The sunbdials are square where most 2110s have round subdials.
Key Features and Information
This rare watch is from my personal collection. I have had it for at least 20 years and it is in excellent original condition. I believe it is unpolished, has its original lume, crystal, crown, and hands. It has light to normal wear for a 55 year old watch. 

The watch is currently running, keeping good time and the chronograph and date functions as they should, but this watch is being sold as-is, because shipping even the most well packed watches can result in the movement being affected. 

Please look at all the photos and ask any questions you may have. Thanks for looking.