Caran d'Ache 3 mm Fixpencil, Black Cap Caran d'Ache of Switzerland 3 mm Fixpencil. The original clutch mechanical pencil, first introduced in 1929. Sensitive pushbutton action and patented gripper tip guarantees perfect control of the lead. Extremely lightweight metal body is coated with three enamel layers. Lead sharpener is incorporated into the cap. Check our store for a full selection of Caran d'Ache 3 mm leads. Caran d'Ache was founded in Geneva in 1924 and remains Switzerland's only manufacturer of pencils, fine arts products and writing instruments. Based in a country that is world famous for its watchmaking and jewelry, it is not surprising that the company has earned an international reputation for products of exceptional quality and beauty.