Cartier 21 Must de Cartier

"must de Cartier" wristwatch

Model "21". Barrel-shaped case and bracelet with double folding clasp, stainless steel with 18k yellow gold plating, bezel with gilt Roman numerals. Matte silver dial with blued hands. Crown with blue cabochon. Quartz movement (function not tested, as the battery needs replacing). Six-screw case back marked "Must de Cartier 21" and serial number PL171114. Minor signs of wear. Diameter 3 cm, length approx. 19 cm. Included: papers in a sleeve with a certificate from Cartier Joailliers, Düsseldorf, dated December 21, 1998, three extension links (approx. 2.4 cm total length), and original case (inserts more heavily damaged).