This is a vintage filigree Japanese saltwater akoya cultured pearl bracelet. 

The pearls are a white color with bright rosy pink overtones. They have great luster and measure 6.25-6.50mm.

It is set solid 10K white gold. The clasp is a filigree style hook and is stamped "10K". Total length is 7.50 inch. From mid-century. 

All pearls are truly vintage and have only been lightly cleaned and restrung.