The Arc watch box was made of wood and hand covered with fine Full Grain leather, available in fourteen different colors. In a luxurious and sophisticated style, the interior is upholstered in genuine Alcantara, a soft microfiber fabric that ensures the watch is safe and clean, and other details are made of high-quality metal.
 
Full grain leather is a term used in the leather and fashion industry to describe the highest quality leather obtained from the skin of animals, usually cattle. This is the surface layer of the skin, which has not been freed from any natural surface defect or imperfection. This includes, for example, scars, injuries, nail holes and natural pigment differences.
 
Full grain leather is characterized by a natural finish that includes texture, comparability and richness. This leather is usually very durable, can improve over time and acquire a unique patina and appearance with age. Because it is the highest quality layer of leather, products made from full grain leather are often valued for their long-lasting aesthetics and durability.
 
In contrast to full grain leather, there is also the term "top grain leather", which is leather that has been lightly sanded to remove its top layer and defects. This results in a smoother surface, but the natural character and durability of full grain leather is lost.