A RARE AND FINE PLATINUM CURVED TONNEAU TWO TIME ZONE WRISTWATCH, Cartier, PARIS, "TONNEAU", NO. 28/99, CIRCA 1999

two identical nickel lever movements, each with 17 jewels and mono-metallic compensation balance, silvered guilloche dial with two off-center dials displaying two different time zones, upper dial with Roman numerals, inner minute ring and secret signature at X , lower dial with Roman and baton numerals, both dial further set with applied white gold numeral at 9 appeared as 99, blued steel baton hands, curved tonneau case with polished bezel and two cabochon set crowns, screwed-down case back, case, dial and movements signed, with an 18k white gold Cartier deployant buckle.

This rare and fine platinum two time zone wristwatch was produced in a very limited series of only 99 pieces especially to commemorate the hand-over of Macau to the Peoples Republic of China in 1999, the current example being offered at auction is numbered 28. The dial of this watch specially set with two applied white gold numerals appeared as 99.