Published by on August 15, 2026 The Cartier Must 21 28mm watch is a luxurious timepiece for women, featuring a classic round shape with a stainless steel case and bracelet. The watch has a silver dial with Roman numerals and seven jewels, powered by a quartz movement. This vintage piece from Cartier's Must de Cartier 21 collection exudes elegance and sophistication, making it a timeless accessory for any occasion.