Daniel Roth & Gerald Genta Haute Horlogerie S.a.

Daniel Roth Et Gerald Genta Haute Horlogerie S.a.

Jean-Pierre Dalloz

This date display for a timepiece, comprising two side by side indicator disks (), one () bearing the figures for the units, the other () those for the tens, the two side by side figures of the two respective disks () appearing in a window () provided through a time indicator dial. These two disks () are transparent and the surface () subjacent to said disks (), appearing in said window () and through said disks (), is of a contrasting color relative to that of said figures.

Date display for timepiece

This timepiece comprises an annual or perpetual date display mechanism and also comprises means () for operating a device () for displaying the number of days in the month being displayed.

Timepiece comprising and annual or perpetual date display mechanism

A toothed correcting gear ( ), in engagement with means of angular positioning ( ), kinematically links the stepwise, drive members ( ) of the display members with a time zones indicator gear ( ), toothing ( ) of the said correcting gear being in engagement with a drive finger ( ) of a correcting rocker ( ), in the position of rest of this rocker, corresponding to the relaxing of its restoring spring ( ), the trajectory described by this rocker ( ), for bringing it into its other limit position, passing via one of the teeth of the said correcting gear ( ), this trajectory being chosen so that this tooth is reset into its initial angular position once this rocker ( ) has moved into its other limit position, the return of this rocker to its position of rest via the relaxing of the said restoring spring, causing the driving by one step of the said toothing of the said correcting gear ( ) by the said drive finger ( ).

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Lavans-les-Saint Claude, France

Jean-Pierre Dalloz