Hi Jan, very nice pair indeed! I myself have managed to get one Heuer helmet clock finally, and it's the Niki Lauda one, same as yours. Lauda was the hero of my childhood, so actually no other choice for me to begin with...

By the way, I have noticed that these helmets tend to be very faithful replicas of the original ones but Lauda's own seems to miss the AGV (helmet maker) logos on both sides just below the windshield: does anybody know why? Perhaps a rights dispute?
Cheers.
Fabrizio