Ebauches S.a.

Maurice Grimm

Eric Saurer

Jean-Felix Perotto

Ali Schneiter

Jean Fellrath

The watch has a winding weight comprising an arm 10a and an oscillating mass 10b. The arm is mounted for pivotal movement about the axis of a toothed ring 12 by way of which the spring barrel 20 is kept wound and which axis is offset with respect to the watch hand axis X, X'. The oscillating mass 10a is at the same level relative to the case back 6 as the spring barrel 20. The length L' of the winding weight is greater than the offset L and more than half the largest dimension of the case 6. The oscillating mass 10b thus occupies substantially half the casing of the watch and is almost as thick as the distance between the glass and the back 6 which is also the rear plate of the movement.

Ultra-flat self-winding watch

Extra-flat electromechanical watch, in which the dial is situated substantially at mid-height of the watch. The elements of the movement are situated, in a radial direction, beyond the space of the passage of the hands (26) and, in elevation, partially at the level of the passage of the hands. This arrangement permits the realization of a watch the thickness of which is about 2 mm, for example.

Very thin electromechanical watch

Electronic timepiece having an electro-optic passive display cell comprising an oscillator used as a time base and an electronic control circuit of its several functions. The electronic circuit is operable by means of a stationary key or switch, having a capacitive action, carried by the glass or crystal of the timepiece. The stationary key is fed by the oscillator through a fixed or non-variable condenser. A conductive element is interposed between the stationary key and the display cell, the conductive element constituting one of the electrodes of the fixed condenser. The purpose of this arrangement is to eliminate the influence of a parasitic condenser constituted by the electrodes of the display cell and the electrode of the stationary key.

Electronic timepiece

An electro-optic display device uses a transparent luminescent panel to reflect and diffuse ambient light, or light from the luminescent panel to a display cell to enable a user to read the display cell. The luminescent panel includes a first transparent electrode arranged between the display cell and a luminescent film. The panel further includes an activation electrode on the opposite side of the film from the first electrode. The activation electrode acts as a reflector - diffuser to reflect and diffuse light received through the other parts of the panel or from the luminescent film itself back to the display cell.

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Neuchatel, Switzerland

Maurice Grimm