Congratulations on the new addition.

It looks great. It is always nice when you can get the complete package with the box and original paperwork included.

I am a BIG fan of the 10MM Auto cartridge myself. I only have two 1911s chambered for it, A stainless Colt Delta Gold Cup that I purchased just about 20 years ago
Then there is the 6" long slide that I built a few summers ago
Then you mention the 610s, I got to love them to. The 6 1/2" is my favorite
I do not know if you are a hand loader or not.

I have opened up the chambers on my 610s so that they can accommodate the 10MM Magnum cartridge. The 10MM Magnum produces about 200-400 FPS of additional velocity depending on the load. I would highly doubt that you can find factory 10MM Magnum ammunition over in Europe.
Is it possible for a citizen in Switzerland to have a revolver imported?

Or must you seek out what the various distributors and dealers have already brought into the country?