Minute-repeater timepiece

A timepiece with minute repeater, comprising an hour rack, a positive-return link between this rack and one end of a driving spring, a manual tensioning lever fixed to the hour rack, an hour-striking cam to limit the degree of tensioning of the driving spring to the number of hours to be struck, a quarter rack, a driving link between the hour rack and the quarter rack, a quarter-striking cam to limit the movement of the quarter rack to the number of quarters to be struck, a minute rack, a driving link between the quarter rack and the minute rack, a minute-striking cam to limit the movement of the minute rack to the number of minutes to be struck, two striking hammers, each connected to a gong, sets of teeth and pallets for selectively activating each of the two striking hammers depending on the time indication to be struck;

• in which timepiece the hour racks, quarter racks and minute racks pivot about a common pin, the hour racks and quarter racks on the one hand, and the quarter racks and minute racks on the other being connected by a unidirectional driving link comprising a click, a set of ratchet teeth for engaging with the click, a stop and a cam for selectively engaging the click, with the set of teeth, and said end of the drive spring is kinematically fixed to two separate sets of teeth for activating a first striking pallet, the first set of teeth for striking the hours and the second set of teeth for striking the quarters and the minutes and a set of ratchet teeth fixed to the quarter rack to engage with a pallet for activating the second hammer in alternation with the first hammer for striking the quarters.