In the past, the watchmaker would carry out his watch repair services at his clients' homes. He therefore made himself a wooden box, with many drawers in which he stored his tools. The upper edges were cut so that, when he laid out his nest of drawers on their kitchen tables, he could create a work surface which would be the same as his workbench.

The Rudis Sylva case is a reproduction of this small toolbox that the watchmaker fitted with a strap and wore on his back. It is decorated with an eyeglass and a screwdriver, and its inner casing showcases the watch perfectly.