A self-inking stamp with a stamp housing, in which a type unit, which is coupled via a turning axle device to an actuating bow that is upwardly and downwardly displaceable relative to the stamp housing, is arranged such that it can be moved between an upper inking position when it is in contact with an ink pad and a lower printing position turned by 180° with the help of a turning mechanism, wherein the type unit includes two type unit parts arranged one within the other, namely an outer and an inner type unit part, wherein the inner type unit part thereof is accommodated in an inner receiving space in the outer type unit part and is releasably connected to the outer, bow-shaped type unit part, wherein the turning axle device includes two separate, outer axle elements, each extending through an opening in a leg of the actuating bow, through a slot in the stamp housing to and into the outer type unit part and being connected thereto.