The product specifications for the 337 AUT:
Single needle lockstitch machine with adjustable top feed mechanism. The top feed mechanism enables equal top and bottom feeding on difficult materials and can also be used for gathering work. The 337 AUT is equipped with thread trimmer and automatic back tack. Electric presser foot lifter is optional.
No Table Top, Table Top C 330 120x55x4 cm, Table Top D 105x55x4 cm
No Stand, Stand C (China), Stand K (912 mm), Stand K short (667 mm), Stand Z
FB II Presser Foot Lifter