Lot 194. Gold, enamel and diamond bracelet-watch, Bulgari.  Estimate 72,000 — 105,000 CHF. Photo: Sotheby's. 

Designed as a serpent, the scales applied with yellow and green guilloché enamel, the eyes highlighted with pear-shaped diamonds, the mouth opening to reveal a circular dial with baton indicators, the bezel set with brilliant-cut diamonds, signed Bulgari, numbered, dial signed Piaget.