An Art Deco diamond wristwatch, by Vacheron & Constantin, and a diamond-set bracelet (not illustrated), 1920s, the rectangular-shaped silver dial with Arabic numerals, within a single-cut diamond bezel, to the finely pierced diamond-set shoulders, on a black grosgrain strap, case and clasp engraved with a foliate motif, the caseback engraved 'From mother to Nell 1925', backwind movement, together with a bracelet, centring an openwork plaque decorated with the diamond-set initial 'H', on a black grosgrain strap, dial signed Vacheron & Constantin Geneve, caseback and movement signed Vacheron & Constantin Swiss, numbered 248343 and 393365, clasp numbered 11501, diamonds approximately 0.78 carat total, mounted in platinum, bracelet mounted in platinum and 15 carat gold, dial 2.5 mm, adjustable strap