Hallam on the 348 Last?
Where did you buy the socks - they go really well.
Those actually aren't Clarendon's; they're these:
which are different from the Clarendon in a few ways: it's a different last (317, vs 358 for the Clarendon), the brown is lighter in color, and I'm pretty sure the apron isn't hand-stitched. I actually tried on the Clarendon as well, and liked these better - the 358 was too pointy for casual wear (IMO).