ONYX AND DIAMOND WRISTWATCH | 縞瑪瑙 配 鑽石 腕錶

The rectangular dial with Arabic numerals and blue steel hands, within a border of millegrain-set single-cut diamonds and triangular onyx, on a mesh strap, mechanical movement, mounted in platinum, length adjustable, dial with rubbed signature Cartier, caseback numbered, with French assay mark, circa 1920.