This Vintage Cartier Paris Centure Octagon Shape watch is the small size, circa 1975-1980. It is 18K yellow gold and measures 27 x 27 mm with a mechanical manual wind 17-jewel movement. It has the original black lizard strap with 18K Cartier buckle. It is triple signed: Dial, Case, Movement. Additionally, the watch comes with a one year movement guarantee.