A lady's Art Deco diamond wristwatch, 1930s

A lady's Art Deco diamond wristwatch, 1930s, the silvered dial with black enamel numerals and black hands beneath a hinged cover centred with an old circular-cut diamond, the bezel and integrated bracelet of geometric design set with round brilliant-cut, circular-cut, carré-cut and baguette-shaped diamonds in platinum, stamped Platine, manual winding movement, case length 2.4cm, bracelet length 16.8cm, one diamond missing to bezel, Van Cleef & Arpels pouch