To provide a compact trick clock having excellent decorative effects such as unexpectedness, a decoratice characteristic or the like.

A trick clock 1 comprises a casing 10, at least one first decorative body 31 which can be housed in the casing 10, a window part 21a formed in a clock panel 21, at least one second decorative body 32 disposed in the back face side of the window part 21a and a moving means 33 for displaying the first decorative body 31 outside the casing 10. In the window part 21a, is provided an opening and closing door 31a for displaying the second decorative body 32 outside by opening and closing the window part 21a interlockingly with the moving operation of the first decorative body 31.