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).