Hi Ctaut,
If you have a good fitting aqualung mask now it is a good bet the inner skirt is bout 10.5cm and you are ok with this inner skirt, you won't find any problems using the Aqualung Luna or the Cressi Supercocchio which are cheap enough that you can do some modification to them if they don't fit that well:
[ame="http://forums.deeperblue.net/showthread.php?t=39876"]Mask Update[/ame]
Spend a bit more and you could get the Picasso Black Team.
Anyway, someone mentioned that the Sporasub Samurai, Cressi Superoccio, OMER Abyss, Mares and Picasso are from the same skirt molds.
Good luck in finding a good free diving mask.
SangP
Btw, since you are in Europe and the prices are really good, you can support this site and buy from:
http://shop.deeperblue.net/