Vintage modernist mixed-metal cuff bracelet with a layered five-band design in silver tone, brass tone, and copper/bronze tone metals. Open cuff style with softly curved stacked bands creating a fluid architectural look. Interior appears signed “SERGIO” with a second faint maker’s mark beneath. Artisan/studio jewelry aesthetic with subtle oxidized patina between the bands, giving depth and contrast. Sleek minimalist design with a late 1970s to 1990s contemporary gallery-jewelry feel. Unisex wearable statement piece with an understated industrial-modern vibe.