Originally Posted by CoyoteQuilts
I have a Pfaff 7570 that has this stitch. It is a straight stitch and you use clear thread in the top with a very tight tension and colored thread in the bobbin with a looser tension. The clear thread pulls the bobbin thread up to the top and that is what makes it look like hand stitches.
The Pfaff stitch isn't the same stitch (to be pedantic).The Pfaff has a double stitch on every second stitch, to give the illusion of hand stitching,and two threads are still used, top and bottom but the Sachiko stitcher has thread in the bobbin which is brought to the surface with a hook and it forms a double stitch on the top and a continuous chain stitch on the back.It's sort of like a crochet stitch through the material.It's a shame the machine is so expensive.