An Art Deco platinum diamond, onyx, coral and rock crystal lapel watch. Bucherer, Switzerland, 1925 c.a.

A rare onyx platinum and diamond wristwatch. Chaumet, Paris, 1925 c.a.

A yellow gold and platinum cuff bracelet with diamonds and rubies. Hidden watch, 1940 c.a.

Orologio Art Deco in platino con diamanti e onici. Pery, 1925 circa.

Cartier Paris, yellow gold and enamel pendant-watch. 1910 c.a.

A platinum and diamond lapel watch with guilloché enamel. Boucheron, 1910 c.a.

Watch in platinum and diamonds. Swiss Made. 1925