It seems Breitling are jumping on the Bremont bandwagon. This concept does absolutely nothing for me, nor does buying something that is commemorating something I wasn't involved with.
One of the first operational aircraft I flew is currently being cut up for keyrings...even with a genuine link to the thing, I still don't really see the point in getting one.
I do think the pushers are a step forward though. The crown thing was fiddly on the aerospace even when you acquired the knack to it!