I have two of these cameras and have run several rolls of Ektar 100 through one of them (see first image in the June 5-7 Weekend Thread).
It was that particular through-the-window image that brought the Hawkeye to my attention. I found one that night on e-bay (there are many) and ten dollars and two days later, I started using one. I have read that some 620 film cameras have no trouble accommodating 120 film--apparently yours is one--and others balk. I just loaded a roll of respooled 120 tri-x that turns smoothly, the first of four rolls. The other three rolls seized at the point where the film is taped to the paper backing. Hopefully, I now have the knack of retaping the film to the backing.
Here are three pictures made on today's walk with my beagles along the Blackstone Canal Bicycle Path in Lincoln, Rhode Island. (I must rig a neck strap to the Hawkeye. Carrying it in hand along with two leashes attached to two vigorous dogs is tricky.) The weather was fine for the Hawkeye--completely overcast with nice, even, soft light. The shutter speeds were 1/15', 1' and 1/30'.
Thanks, cmdrray, for the inspiration to pick up an Hawkeye.
[Sorry, image deleted during forum software upgrade. Please re-upload if so inclined.]