Gorgeous ! (Apart from the unnecessary, scaffold like, mirror stems).
PS It's a shame the standard seats are so poor that we all have to upgrade or suffer) .
They are the Wunderlich Ergo....I have the same for my TC. Initially I thought I had made a mistake as they are hard, having now had them for a while I think they are the best seat I have had on any bike ...ever, including Sargent. Wife also loves the pillion...all day comfortable.
I was lucky in that I got mine second hand in pristine condition for half the price of new. I think a new set cost about £700.