Timepiece including, on the one hand, at least one striking mechanism, which is a striking or grand strike or minute repeater mechanism, said sound producing striking mechanism being controlled by a main strike control means releasing main strikes, either at times programmed by a timepiece movement comprised in said timepiece, or on demand, and on the other hand, a secondary strike release mechanism, which is an alarm mechanism controlling the operation, at a particular moment, of a secondary strike control mechanism, which is an alarm control mechanism, which includes means for setting a particular alarm time, and said alarm control mechanism being arranged to release a secondary alarm strike at a particular moment, which particular moment is linked to a presetting by said time setting means, and/or to reception of a signal, and/or to breach of a threshold value for a physical parameter, said secondary strike release mechanism including a coupling mechanism arranged: - at said particular moment of release of said alarm control mechanism, to prevent performance of a main strike by uncoupling said main strike control means, and to release an acoustic alarm signal by coupling said striking mechanism; - outside said particular moment of release of said secondary strike control mechanism and after performance of said secondary strike linked to said particular moment of release of said alarm control mechanism, to allow a main striking mechanism to operate by coupling said main strike control means, and to release a main strike by coupling said striking mechanism, characterized in that said secondary strike release mechanism includes mode selecting means for selecting, in said timepiece, either an alarm mode, or one of the modes of said main striking mechanism, said mode selecting means being arranged, when said alarm mode is selected, to activate said coupling mechanism for the uncoupling of said main striking mechanism and the coupling of said alarm mechanism controlled by said alarm control mechanism to control the striking of the alarm by a striking mechanism unit comprised in said grand strike mechanism, said coupling mechanism being further arranged, in the event that the striking mode is selected, to uncouple said mechanism for striking the alarm by said striking mechanism, and, either to not play the alarm, or to play the alarm using a mechanism other than said striking mechanism, and characterized in that said coupling mechanism includes a control rod linkage including a large control device arranged to control a coupling wheel set to play a secondary strike or alarm from said striking mechanism unit, and to control a timing wheel set which is interfaced with said striking mechanism unit and comprised in said timepiece, to define the duration of the secondary strike or alarm. - at said particular moment of release of said alarm control mechanism, to prevent performance of a main strike by uncoupling said main strike control means, and to release an acoustic alarm signal by coupling said striking mechanism; - outside said particular moment of release of said secondary strike control mechanism and after performance of said secondary strike linked to said particular moment of release of said alarm control mechanism, to allow a main striking mechanism to operate by coupling said main strike control means, and to release a main strike by coupling said striking mechanism,