A lady's diamond set wristwatch retailed by Tiffany & Co., 1920's,

細節
A lady's diamond set wristwatch retailed by Tiffany & Co., 1920's,
circular engine turned dial signed Tiffany & Co., Arabic numerals, blued steel hands, damascened nickel plated movement jewelled to the centre and with compensation balance, circular case with polished bezel, the band set with diamonds, snap on back, diameter 27mm, with expanding bracelet.
See Colour Illustration (Plate 12)