The ability to customise even the most fine-tuned of accessories is the ultimate in luxury horology. <b><a href=" http://www.selfridges.com/cat/cartier/" style="text-decoration: none"><font color="black">Cartier</font></a></b> obliges with its latest <b>Santos de Cartier watch</b>, complementing the steel case with a duo of interchangeable straps. You have the choice between a sleek steel bracelet equipped with a SmartLink resizing system or calfskin coloured to match the blued-steel sword-shaped hands.