Looking at both Arial Bold and Swis721 HV BT on-screen, while not a perfect match. But Swis721 HV BT is definitely not as heavy as Swiss721BT-Black, which is pretty comparable to Arial Black in weight. So I think it falls into the "close enough" category.
I sometimes dread redoing some of the manuals I or others did back in the early to mid-1990s, simply due to font issues. But I guess that's why we make the big bucks...and at least for myself, the reason I have less hair these days