The 42mm wears larger than it seems because the lugs are so long (50mm). My 42mm Speedy (lug to lug 47.2) and SKX twins (lug to lug 46) look much smaller on my wrist.
Looks like the 38mm Khaki is 47mm lug to lug.
Looks like the 38mm Khaki is 47mm lug to lug.