Stunning Cuff Bracelet Black Resin Inset Rows of Silver Tone High Quality

This is a beautiful bracelet, likely vintage (at least 20 years old) The construction is very sound, high quality Unsure of the materials, likely alpaca “silver” which is a copper alloy containing zinc and nickel The black bar I have seen identified as resin, could be acrylic or lucite 2” tall, 2 1/2” across, the opening is 1 1/2”