Richemont International S.a.

Kilian Eisenegger

Denis Zimmermann

Jean-François Mojon

Gérard Lallement

Sheng Jun Huang

A device for the date indication in a watch, with a digit disk and a decimal disk, which each include a sequence of figures or numbers and are arranged next to each other in parallel in such a manner that they overlap within the region of an indicating position and thus allow to represent a two digit number visible through a corresponding date window in the dial. The disk of larger diameter is a circular disk and the axis of rotation of the disk of smaller diameter is arranged within the outer peripheral contour of the disk of larger diameter. The device includes a digit programme wheel and a decimal programme wheel, which control via a digit pinion and a decimal pinion the switching operation of the digit disk and the decimal disk, and a programme drive wheel, which passes on the driving force onto the digit and decimal programme wheels.

Device for date indication

The present invention refers to a constant-force device suitable for being integrated into a movement of watches, particularly wrist watches, with an indirect-second mechanism having an intermediate second pinion () driven by a second wheel () of the movement, and an indirect-second wheel (). The constant-force device comprises a tensioning module (), a cam (), a lever (), and a stop wheel (). The stop wheel () of the constant-force device is mounted on the intermediate second pinion () of the indirect-second mechanism.

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Stetten, Switzerland

Kilian Eisenegger