Abstract: The present invention concerns a method of manufacturing at least one device (2, 30, 48) defining a volume (8) for retaining a fluid or a sensitive material that is capable of changing its physical properties, particularly its optical properties, via the application of a voltage, or its electrical properties via stress or radiation, said device (2, 30, 48) including at least a first front substrate (4, 38, 56) and at least a second back substrate (6, 32, 50) maintained at a constant distance from each other, these two substrates (6, 32, 50; 4, 38, 56) being joined by a sealing joint (24, 46, 72) which defines the volume (8) for retaining the sensitive medium or fluid, said method being characterised in that it includes the steps of: structuring at least one wall (12, 44, 66), which defines via its inner lateral face the volume (8) for retaining the sensitive medium or fluid, on one of the substrates (6, 32, 50); joining the second substrate (4, 38, 56) to the first substrate (6, 32, 50); introducing a

Abstract: The device includes an indicator (3) in the shape of a plate, moving behind a dial (1) having a circular aperture (2), which represents the lunar disc. The indicator includes an S-shaped line of separation (6) between a dark zone (4) and a light zone (5) representing the non-illuminated part and the illuminated part of the moon in the aperture. The indicator is rotatably mounted at the centre of symmetry C of the line of separation (6) on a rotating support making two revolutions per lunation. An image matching the appearance of the moon in each phase is thus obtained. Such a device can be used particularly in a watch or another timepiece.

Abstract: The device includes an indicator (3) in the shape of a plate, moving behind a dial (1) having a circular aperture (2), which represents the lunar disc. The indicator includes an S-shaped line of separation (6) between a dark zone (4) and a light zone (5) representing the non-illuminated part and the illuminated part of the moon in the aperture. The indicator is rotatably mounted at the centre of symmetry C of the line of separation (6) on a rotating support making two revolutions per lunation. An image matching the appearance of the moon in each phase is thus obtained. Such a device can be used particularly in a watch or another timepiece.

Abstract: The apparatus includes at least one information storing unit (23), a unit (25) for processing said information, a management and control unit (20) receiving control signals from the processing unit (25) and a supply unit (27) controlled by said management unit and controlling the movement of said two stepping motors (24;26) above a dial bearing markings Ri representative of said information.

Abstract: A micropump including at least one main plate (1), at least one upper plate (2), and a middle plate (3) arranged between the other two plates (1, 2) and forming a pumping chamber (4) that is connected with at least one inlet of the micropump and at least one outlet of the micropump. The pumping chamber comprises a movable wall (5) machined into the middle plate (3); the upper plate is equipped with at least one opening (12) linking a cavity (8) with at least one portion of the movable wall (5). Actuation devices (6, 7, 13) attached to the free surface of the upper plate (2) are used to shift said movable wall (5) in order to bring about a periodic variation in the volume of the pumping chamber (4). According to the invention, the actuating devices (6, 7, 13) are formed by an actuating plate (7) of a material which can be machined so as to define a movable area (11) and said cavity (8).