First of all I have to say, that probably I was wrong and this knife is a another modification of Fischermesser. If you’ll compare images of actual knife with the pictures from Victorinox catalogs (see below), you will find several differences.
I summary — I don’t know what exactly this model is. I never saw it before and I couldn’t find any information about this knife yet.
So any your help (with identifying this knife) will be very appreciated!
P.S. Knife was repaired (replacing of both blades, new scales) by my friend Ivan.