I love mine although I had to revamp it a bit to make it hand crankable.
aluminum, weighs about 16pounds.
I had a singer127 but it weighed about 35 pounds. Sent it off with a lady who bought my Janome 6600. that is its case in the background.
Don't do it on a featherweight, you only get 3 stitches per turn...like watching grass grow
there is a thread here somewhere with more info on the Bantam. It is 3/4 size by the way.
A lot of vintage machines can be converted to hand crank or treadle.