Cartier a lady's 18ct gold square wristwatch with bracelet ref 1820 no MG251605 tank Francaise circa 1990, quartz movement, silvered dial with Roman numerals, secret signature at X, inner minute track with five minute markers, blued steel sword hands, polished square case with case back secured by four screws, sapphire-set crown, case, dial and movement signed, with an 18ct gold Cartier link bracelet with concealed double deployant clasp, 20 mm square, bracelet inner circumference approximately 140 mm