Art Deco 
An Art Deco Diamond, Onyx and Emerald Pendant Watch, circa 1920 suspended by a plaque brooch of geometric design, centering a diamond collet upon a French-cut onyx and diamond lozenge surround, between calibre-cut emerald and carre-set diamond shoulders, to rows of small rose-cut diamonds and calibre-cut onyx corners, from a diamond line and trefoil bail, to the similarly decorated pendant, the verso with an openface watch with circular white dial.
