An art deco diamond bracelet-watch, by Cartier. Photo Christie's Image Ltd 2014

The miniature cream rectangular dial, with Arabic numerals and blued steel hands, flanked by baguette-cut and pavé-set diamond shoulders to the circular-cut diamond buckle-link bracelet, mechanical movement, 1920s, 16.5 cm, with French assay mark for platinum. Dial signed Cartier, nos. 10038 and 25604. Estimate CHF22,000 – CHF32,000 ($25,067 - $36,461)

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014, Geneva -http://www.christies.com/