Cartier watches from the Santos De Cartier collection. The classic men’s Cartier Santos De Cartier 40 WSSA0039 watches are of premium quality equipped with a reliable automatic self-winding mechanism (powered by arm movement amplitude) of MY9015 caliber, which implements the following functions: hour, minute and second hands, and the date. The black square case of the watch, with a size of 40 mm X 47.5 mm and a height of 9 mm, will perfectly complement the image and decorate the wrist of its wearer. Cartier Santos De Cartier 40 WSSA0039 watches offered in our online store, high quality 316F stainless steel (Swiss standard) and high strength sapphire glass are used, thus providing maximum protection against chipping and mechanical damage. The distinctive feature of this model is a black dial, whose hour indices provide Roman numerals. The Cartier rubber strap completes the look with a black Cartier rubber strap with a distinctive folding clasp. The waterproofness of this model is 30M (WR30)- minimal exposure with water is allowed.