A couple of days ago the saddle on my every day crosser got stolen :-(. At least only the saddle and not other parts as well.
It was a pitty anyway as also a screw on the seat post was missing which you can’t get easy as a spare part due to its special diameter (M7). In fact the seat post got unusable because of that.
I bought a new seatpost by Ergotec and a saddle. Instead of the Brooks B17 there is now a “plastic saddle” by Terry which is hopefully not that attractive for thiefs. At least the new saddle is quite similar to the B17 in its dimensions and it is also quite comfortable.