A diamond bracelet watch, 1930s, of concealed design, the hinged rectangular-shaped cover mounted with a central line of baguette-cut diamond collets, surrounded by old brilliant-cut diamonds, opening to reveal a silver dial with Arabic numerals and blued steel hands, the bracelet composed of four pierced diamond-set plaques of bow motif, interspersed by five openwork panels of old brilliant-cut diamonds, to the similarly-set clasp, Swiss backwind movement, diamonds approximately 8 0 carats total, mounted in platinum. Length 16.5 cm