Signature Thunderbird design by Zuni artists Bobby & Corraine Shack. Vintage and very collectible. Inlaid with Turquoise, Mother of Pearl, Coral, Black Onyx, and Abalone shell. All set in sterling silver. Both pieces have original Hallmarks. Natural stones and shells set in sterling silver Vintage Zuni made Hallmarked by Bobby & Corraine Shack Black soft cowhide leather, adjustable band 1-3/4 L x 1-1/2" W tips All stones and shells are secure in the settings Good weight of silver used in the making As shown is 40-41mm Apple Watch. Can be customized to fit most Samsung Smartwatchs