Nico
I think i took the original back to Tom and he had a replacement of the right size. Tom is the owner of the physical store behind this web site. I am not sure he even charged me for it. This is why you ought to move to Pittsburgh and enjoy the benefits of having Anders and Tom nearby.
Seriously, if you measure the belt I will ask Tom for help, maybe he has another one in his shop. If he does I will get it to you. Where in Europe are you?
OBG