Cartier Art Deco Clock

Cartier Art Deco black onyx and cabochon sapphire desk clock. Made in Paris, circa 1925. Mechanical, the circular matte silver-tone dial centering an inner circle of engine-turned sun ray pattern, with black Roman numerals, blued steel spade hands, minute indicator chapter ring, encircled by a gold and white enamel bezel, diameter approximately 42.5 mm., within a square black onyx case with curved notched corners, quartered by 4 collet-set round cabochon sapphires, with gilt metal easel, dial signed Cartier, Paris, case signed Cartier.