Bernina 720 Sewing Machine:   The new heart of the BERNINA machine features a novel, centrally-placed driver, which allows the B hook to run steady and quiet. The B Hook sews high-precision stitches up to 5.5 mm in width with speeds up to a 1,000 stitches per minute. And the bobbin has 80 percent more thread capacity than standard bobbins, allowing you to sew longer without interruption.