BERNINA L 660 Arriving August 2026 Pre-order in store. Pricing available in store. Exploring New Possibilities with Ease The BERNINA L 660 is a powerful overlock serger built for working with a wide variety of threads and fabrics. Stretchy, knit, delicate, and heavy materials are all handled with precision and ease using 2, 3, or 4 threads. The illuminated One-Step BERNINA Air Threader, integrated BERNINA Free Hand System with Feed Dog Drop, and Micro Thread Control (mtc) make the L 660 one of the most comfortable and capable overlockers available — and Swiss-engineered to last. One-Step BERNINA Air Threader BERNINA Free Hand System + Feed Dog Drop mtc Micro Thread Control 18 Stitch Patterns 3–9 mm Stitch Width 1,200 SPM Max Differential Feed Rolled Hem Swing-out Presser Foot Programmable Needle Stop Integrated Needle Threader Slide-on Table Included Dimmable Sewing Light Powerful DC Motor BERNINA — Swiss Engineering & Perfection since 1893 Precisely manufactured down to the last detail. Durable build, a deep accessory ecosystem, and long-term parts availability. Robust, long-lasting construction Wide range of accessories 20-year warranty on mechanical parts (details) "The L 660 proves that sergers do not have to be difficult. It's not necessary." Join Serena, Anna, and Christin on their trip to Zurich, where they discover the new L 660 and put it to the test on their individual projects. Getting Started Has Never Been So Comfortable Illuminated One-Step BERNINA Air Threader Integrated needle threader Magnetic all-in-one looper cover for intuitive threading prep Hold the threads over the Air Threader, press the foot control, and threads are drawn in by air. Thread in any sequence — no handwheel turning required. Convenient Handling BERNINA Free Hand System (FHS) with Feed Dog Drop Swing-out presser foot for easy needle access 2-step presser foot lifter for thick or multi-layered projects Raise and lower the presser foot hands-free with the knee lever while simultaneously dropping the feed dogs — effortlessly position and remove any project. Sew as You Like Programmable needle stop — up or down, your choice Slide speed control on the front panel Dimmable sewing light for perfect visibility Sew precisely stitch by stitch or at full speed up to 1,200 SPM. The back-kick function on the BERNINA foot control raises or lowers the needle with ease. Precision in Every Detail Micro Thread Control (mtc) — fine-tune looper thread amount while sewing Stepless differential feed for wave-free seams on knits and delicates Total Stitch Control — adjust width, length, and tension while sewing Everything in View and Within Reach Magnetic tool holder — tweezers and scissors always at hand Accessory box with integrated tool-insert lid Overlock Foot with Tape Guide #L11 included Clever, Spacious, and Compact by Design Knife easily operated from outside — on/off without opening the machine 3–9 mm stitch width, precisely adjustable Slide-on Table included for large and heavy projects Extremely Fast, Precise & Quiet Up to 1,200 stitches per minute Powerful DC motor with minimal vibration Smooth, consistent performance at any speed Sew fast or stitch by stitch with equal precision — especially useful for perfect seams in corners and curves. Machine Type Overlock serger — 2, 3, or 4 thread Stitch Patterns 18 total — 4-thread overlock, 3-thread overlock (wide/narrow), 3-thread super-stretch, 3-thread flatlock (wide/narrow), 3-thread narrow seam, 3-thread rolled hem, 3-thread picot stitch, 2-thread overlock (wide/narrow), 2-thread flatlock (wide/narrow), 2-thread rolled hem, 2-thread wrapped overlock (wide/narrow), 2-thread blanket stitch (wide/narrow) Stitch Width 3–9 mm (overlock); adjustable while sewing Stitch Length 0.8–4.5 mm; adjustable while sewing Differential Feed 0.7–2; fully adjustable while sewing Maximum Speed 1,200 stitches per minute Workspace 4.5" (114 mm) to the right of the needle; 3.25" (83 mm) workspace height Motor DC — powerful, quiet, consistent Weight 9.9 kg Key Features One-Step BERNINA Air Threader with light, integrated needle threader, FHS with Feed Dog Drop, mtc Micro Thread Control, programmable needle stop up/down, swing-out presser foot, 2-step presser foot lifter, color-coded one-path threading, rolled hem lever, upper looper converter, magnetic tool holder, dimmable sewing light Standard Accessories Overlock Foot with Tape Guide #L11, Slide-on Table, looper cover with cut-offs bin, BERNINA foot control with back-kick, tweezers, manual needle threader/inserter, needle set ELX705 CF, brush, screwdriver, CS Lock Tool, knee lifter, spool net, spool cap, spool stabilizer, overlocker oil, dust cover Check availability & get price See all BERNINA machines Explore the full BERNINA collection at Flash Sew & Quilt, with locations in Jupiter, Naples, and Sarasota, FL. Our certified BERNINA technicians are on staff to demo the L 660 and help you find the right serger for your work.