Hermès studded bracelets date back to the beginning of the 20th century when Hermès began to offer leather and bejeweled dog collar collections to its clients. Some were made with studs, which were designed to protect the hunting dogs.  From these dog collars, or colliers de chien, came other items such as the belt, the rings and the bracelets. 

As market tastes changed, Hermès Collier de Chien (CDC) line of jewelry has evolved.  The latest modernization are the Mini Dog Clous, thin bracelets of leather with studs. Some have "ronds" or rounded studs and others have "carres" or spikes.  Regardless of the studs, these new bracelets have the classic CDC three slot closure and bar.  Thinner, they can be stacked together or worn with enamel or H bracelets.  Very chic.