14 x 10.5 cm. I am not a leather expert but this is a very fine and soft leather - possibly kid. The left side has six credit card holders with a storage section behind and the right side has two storage sections. The centre spine has a pen holder. The front is embossed "Ulysse Nardin" with the anchor logo. There is a feint line on the front which looksto me to be no more than a natural mark of leather.