Very rare Art Deco pendant watch necklace by Eduard Jakob Gübelin for Gübelin & Co., Switzerland, 1925, crafted in solid platinum with geometric patterns and black enamel. Features five natural white pearls and sixty-four diamonds (total approx. 2.20 ct, F/G color, VS2 clarity) across brooch, divider, watch case, and diamond station chain. Rectangular silvered dial with black Arabic numerals, mechanical 17-jewel movement. Pendant measures 51 x 26 mm (2.0 x 1.02 in); chain is 19 inches (48 cm), total weight 24.3 grams. Stamped with maker’s mark, platinum assay, reference numbers, and signed “E. GUBELIN SWISS 40892.” The overall condition of this necklace clock is excellent. Beside the little normal wear, there is no damage to the platinum. All gemstones are secured in the settings. This piece has been carefully inspected to guarantee the condition and the authenticity.