Chronograph repeater mechanism with safety function

An acoustic timepiece display mechanism, comprising:

• a striking mechanism;
• a chronograph mechanism;
• and
• a chronograph repeater for an acoustic display, by the striking mechanism, of a duration measured by the chronograph mechanism,
• wherein said chronograph mechanism includes a control mechanism having a control cam whose position is variable,
• wherein said striking mechanism includes a winding pusher arranged to be operated in a single pusher direction by a user to set off the acoustic display of the duration timed by said chronograph mechanism, said striking mechanism also includes a winding lever arranged to drive a rack to move a striking rack to read the duration measured by the chronograph mechanism and to release a corresponding strike function,
• wherein said winding lever is arranged in a variable secondary direction, and
• wherein the acoustic timepiece display mechanism includes, between said control mechanism and said winding lever, a mechanical connection, arranged, depending on the position of said control cam, to isolate or not to isolate said winding lever from said winding pusher.