An Enamel, Diamond and Gold Serpenti Bracelet-Watch, Bulgari. Photo Christie's Image Ltd 2014

Designed as a gold coiled serpent bracelet, the sprung body with green and brown enamel scales, the head with pear-shaped diamond eyes, opening to reveal a circular gold dial, mechanical movement by Jaeger-LeCoultre, 1960s, in brown leather fitted Bulgari case Signed Bulgari, dial signed Jaeger-Le Coultre, no. 7765 32 A. Estimate: CHF72,000 – CHF90,000 ($81,902 - $102,378)

Christie's. GENEVA MAGNIFICENT JEWELS. 14 May 2014. Geneva - www.christies.com