Part of a limited collection of  vintage watch part-vile necklaces.
Each necklace is delicate but sturdy. Made with copper and lead free, jewelry-grade solder.
This one features:  a bit of micro labradorite chain and the vile has been filled with blue glass shards with a heart charm on the side.
Measures: about 12 and a half  inches down each side, should rest above the breast line.