Brooks began producing the B17 in 1866 and it is their best selling saddle. It's made in England by skilled craftspeople and comes with an extended 10 year guarantee. Similar to a nice pair of shoes, the leather will break in and shape becoming more and more comfortable over the years. The B17 is ideal bicycle saddle for commuting, gravel, road cycling and touring + trekking use.
Here is what Brooks says about this model.