The last example of a small Los Castillo "onix negro" jewelry collection I acquired a little time ago, this mod bracelet is perfect for the medium to smaller wrist. Its thick links remind me of mahjong tiles and I am captivated by their minimalist geometry. Easy to wear yet definitely a bracelet whose weight feels warm and familiar when you have it on - the perfect accessory to add that little bit of style to make it special. Measuring 6 3/8" long (wearable) by 1/2" wide it weighs 50.0 grams. It is marked with maker's signature as shown as well as "HECHO EN MEXICO", "ONIX NEGRO", des. no 30 and Eagle 15 assay mark and dates in the 1950s-60s. In excellent vintage condition with the highest level of workmanship, great patina, a slick, contemporary design and no damage or repairs noted.