Lot 106. Gem set and diamond mystery clock, Cartier. Estimate 196,000 — 294,000 CHF. Photo: Sotheby's.

The circular faceted rock crystal dial within a bezel set with brilliant-cut diamonds and carré-cut rubies and emeralds, the hands of leaf design set with emeralds, rubies and diamonds, the case embellished with stylised lotus flower motifs, the base set with mother-of-pearl and decorated with a gold Buddha figure holding a cultured pearl and highlighted with rose quartz, rubies, emeralds and diamonds, measurements approximately 170 x 135 x 280mm, signed Cartier, numbered, French assay and maker's marks.

Sotheby's. Magnificent Jewels and Noble Jewels, Geneva, 16 Nov 2016, 10:30 AM