18K gold, or a combination of these two metals, the Cartier Roadster timepiece appears in guises for both men and women; all of these sought-after watches demonstrate elegant Roman numeral dials, exquisite attention to detail and hand-finished luxurious ambiance. Thanks to the design of the caselugs, easy strap interchangeability is a key feature of the Roadster timepiece, and Cartier supplies each watch with additional straps which can be readily exchanged in moments. Depending upon the model, the Cartier Roadster watches are animated by either a highly precise battery-powered quartz movement, or a refined mechanical movement with an automatic winding mechanism.