Eta Sa Manufacture Horlogere Suisse

Matthieu Tardivon

Pascal Lagorgette

Francois Klopfenstein

Damien Schmutz

François Klopfenstein

Rene Rufener

Raphael Haenni

René Rufener

Raphäel Haenni

Pascal Largorgette

A timepiece includes a timepiece movement provided with an analog display and at least one wheel rotating integrally with a rotary indicator of the analog display. The wheel includes an electrically conductive plate pierced with at least one aperture. The timepiece also includes a device for detection of a reference angular position of the aperture. The detection device includes a first electrode, a second electrode, and a common electrode which are planar and arranged in a plane parallel to the wheel. The common electrode is arranged along portions of the first electrode and of the second electrode. The aperture is at least partially above or below: the first electrode in a first position of disequilibrium; the first electrode and the second electrode in a position of equilibrium; and the second electrode in a second position of disequilibrium.

Timepiece comprising a wheel set with a determinable angular position

Electromechanical apparatus including a wheel set and an analogue indicator member which are integral in rotation, a stepping motor, and a capacitive device for detection of the angular position of the wheel set, including a rotor, a stator and an electronic measuring circuit, the stator including a first pair of electrodes having a first capacitance and a second pair of electrodes having a second capacitance, the rotor being adapted such that the values of the two capacitances depend on the angular position of the rotor, and an electronic measuring circuit being provided for generating an output signal representative of a difference between the respective values of the first and of the second capacitance.

Electromechanical apparatus comprising a capacitive device for detection of the angular position of a wheel set, and method for detection of the angular position of a wheel set

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Renens, Switzerland

Matthieu Tardivon