Was quite bumbed to hear that Apple didn't do classic spans anymore, but found Lucrin through some research. Ordered their navy blue smooth calf hair strap for my 44mm watch. When ordering I had to choose the strap length, which my 170mm wrist was quite happy with. It would probably have given it the edge over the official Apple ones. Only downside would be the long haul to the UK (almost two weeks).
More photos here: https://imgur.com/a/dXZWWvg