An 18ct white gold and diamond lady’s Panthère Ruban wristwatch by Cartier, the square signed mother-o’-pearl dial with Roman numerals, secret signature at 10 o’clock, within a bezel of single-cut diamonds, the reverse signed and stamped ‘18k 750’ numbered ‘848577 CC 2422’, with guarantee marks, to polished brick-link bracelet with deployant clasp, with cabochon inset winder key, and with additional links length 27mm, diameter of watch head 16.5mm, dial (including diamond bezel) 14mm. £ 2,600-£3,000