Sergio lub mixed metal magnetic herringbone cuff bracelet made in usa vintage

in excellent pre-owned condition stamped Sergio Lub made in USA discontinued style no longer available on their website, which makes me think it may be an original one from the early days. metal tones are gold and silver 4 separate twists mounted together magnets The length of the metal (sort of a circumference) is just shy of 6". In current degree of bend, it's about 2.5" across on the inside.