Nice review! I really helped me allot understanding about the rep quality of the navitimer.
I've a navitimer rep that's a bit bigger then the rep which is discussed in this topic, and has the numbers more towards the outside. See link :
http://www.chrono24.com/en/breitling/vintage-navitimer--id2009032.htm?query=Breitling+navitimer+806&dosearch=true&searchexplain=1&resultview=list&goal_suggest=1&dosearch=true&urlSubpath=/search/index.htm
Do you have experience with this rep as well?