All high watchmaking is mechanical 
"Rama (All high watchmaking is mechanical, it's not unusual at all ! ) Little expension on the Emergency)"

I haven't got a model by model comparison here but the Tag Heuer and Omega that I have here are not purely mechanical. So my point was that the thing that distingushes the Breitling (and presumably Rolex etc) from watches that are poularly percieved as high quality consumer watches is the mechanical mechanism.