An Art Deco Platinum and Diamond Pendant Watch Necklace, French, case back, bezel, and bail containing numerous rose cut diamonds, 28.00 x 28.00 mm case dimensions, silver guilloche dial, painted black Roman numerals, blued steel index hands, snap on case back, stem wound and set movement, polished case with applied diamond set monogram, pendant suspended from a platinum Figaro link necklace. Bail stamp: BREVET S.G. (partially obscured).Clasp stamp: (French assay mark).Case stamp: 12072. 21.00 dwts.