The invention relates to a self-inking stamp (1) comprising a stamp housing (2) in which a reversible stamp unit (20) and a receiving chamber (6) for an ink pad container (5) are arranged, an actuation part (3) which is mounted on the stamp housing (2), and which can be displaced relative thereto from an upper rest position to a lower printing position, which pivotably supports the stamp unit (20), and a window part (4) which is at least partially transparent, detachably mounted by a clip connection on the actuation part (3) and through which the printed card (12) arranged inside the window part (4) is visible. When the window part (4) is mounted on the actuation part (3), two opposing walls cover the actuation part (3) when it is in the upper rest position, and extend downwards over the receiving chamber (6), and covers the latter, said window part being mounted so it can be displaced up and down on the actuation part (3). In the upper rest position, said actuation part (3) releases the receiving chamber (6) for the ink pad container (5).