The present invention concerns a portable object such as, in particular, a timepiece (1), including means (16) for displaying at least one data item and a case (2) formed of a top portion including a crystal (14) covering the display means (16) and a bottom portion delimited by a back cover (6) located below said display means (16), this object including a piezoelectric transducer (32) generating an electric voltage when mechanical pressure is exerted on said top portion, the voltage generated by the piezoelectric transducer (32) being applied to a first electronic circuit which will generate a logic signal in response to the pressure exerted, this electronic circuit being arranged inside said case (2), characterized in that said piezoelectric transducer (32) is arranged in the bottom portion of said case (2) and is rigidly connected to said case (2).
The invention proposes a watch comprising a case which includes a middle part, a crystal and a display dial. The crystal includes an outer radial collar which abuts axially against the middle part and which is held axially against the middle part by means of a bezel. The bezel includes a lower annular radial surface which abuts axially against the top face of the collar. According to one feature of the invention, the collar includes a convex outer peripheral surface which is generally complementary to a concave inner surface of the bezel arranged opposite, underneath the radial abutment surface of the bezel and which abuts radially against said inner surface in the event of an axial shock applied to the crystal.
