It's a twin plane Navitimer 806. Lume has gone but nice patina. Sub Dials look a little too fresh and the outer C scale on the bezel looks over large on the text size. Needs a better strap or bracelet but otherwise looks the business. Glass could also be wrong (should be easy to read scale through it) but that's an easy fix as it's usually the radii on the edge that's in error. If it's running and keeping reasonable time it then could be a good refresh project.
Correction. Scale might be OK. Seems its from around 1970. 806 might have been rubbed off the back, but check to see if it had a 36 after it. Cant see it in the pic. Could be one of the models from that era with a Valjoux 7736 movement fitted.
Try ths site for a fairly informative description of ths model.
http://forums.watchuseek.com/f39/br...-history-most-famous-breitling-all-25057.htmlClick to expand...