Indeed the '164grille' watch was made in order of Alfa dealer 'Sam Van Lingen' (the famous tuner SaVaLi that is)
As I remember well, about 1200 of these watches where made.
I do own one myself, it has the same red box as the one on your pics.
Thanks Frankalfa for quick reply, i think the other is also alfa netherlands item, would love to know from others who see this if they know anymore about it, what do you think alfa grille one is worth ?