The care and test that we at Cartier dedicate to our leather bracelet ensure that they are of the finest quality. Under a normal condition of use, a leather Cartier strap will last an average of 6 to 12 months. This period depends on condition, frequency, and environment of use. For instance, contact with water or any other liquid may cause premature wear of the strap.
Your leather band may last longer with good care to avoid such damages.