In its refined simplicity, Model 537 stands out owing to the combination of rich materials and ingenious, playful design. The large aluminum reflector in black or white is mounted asymmetrically on a lacquered or brushed brass stem, which is carefully twisted in a beautiful balancing act, coming to rest on an elegant marble base. As a vital part of the design, the stem reaches out through the reflector and beyond in a backward motion, giving the top of the stem a dual function as playful feature and practical handle.

Gino Sarfatti is one of the most significant figures in the history of Italian industrial design. During his work in the lighting sector, Gino Sarfatti set up Arteluce, which became an international reference point for the modern architectural lighting movement and also a meeting place and forum for many of the leading Italian designers of the 50's and 60's. He designed and produced over four hundred luminaries and conducted extensive research into the innovation and design aspects of lighting.