Abstract: An electric quartz clock has a clockwork provided with a contact plate which forms a peripheral flange about a rear part of the clockwork, the outer periphery of the flange being engaged by detents which extend rearward from a clock housing whose front cover is provided with a viewing window. The periphery of the front cover carries several pushbuttons aligned with resilient contact members which overhang the flange of the contact plate and can be selectively pressed thereagainst to close a circuit for the control of the clockwork. The contact plate may be permanently secured to the body of the clockwork or may be attached thereto by coacting formations, specifically by lugs on the plate engaging the clockwork body or lugs on a surrounding annular element engaging the rim of a central aperture of the contact plate; the latter lugs could also hold an ancillary rear member such as a spacer ring or an end plate.