SBS/Redline, sells Torker, ask dealer what saddle was spec'd on your bike.
probably can get the same one thru distributor > dealer supply chain.

in Wet Portland Leather saddles get damaged if not kept dry,
and in a bike town, people strip parked bikes, so your $100 saddle could disappear.

further west, I got a couple Fizik Vitesse saddles..the batch Brompton ordered from them offer a better setback than the B17,
because of the rail bend is different.
Even the synthetic cover lives under a plastic bag 9/10 of the year.

But, my butt is not yours, and saddles are better chosen by
riding on them than seeking most popular opinion poll.