A device for selecting a combination of patterns for a timepiece, including an inner disc including N angular sectors of the same size, each bearing a symbol on its periphery, with N being a whole number greater than 1; an outer disc coaxial to the inner disc and with a larger diameter, the outer disc bearing M symbols distributed over M*N angular sectors of the same size, with M being a whole number greater than 1, each of the M symbols of the outer disc being repeated on N consecutive sectors of the outer disc; a dial extending opposite the inner disc, the dial including an aperture allowing a pattern of the inner disc to be matched with a pattern of the outer disc; an activation device allowing the inner disc to rotate and a meshing device coupling the two discs according to a speed reducing ratio M.

An adjustable timer teaches time in a simple manner to those having difficulty understanding the concept of time. The timer displays remaining and elapsed time. The timer may be set to rotate a shaft at different speeds. A colored disk is attached to the shaft. Boards having faces with different numerical indicia reside in a cavity and may be interchanged by a user. The exposed board face corresponds to the setting of the timer such that one full rotation of the shaft and disk corresponds to the numerical indicia of the exposed board face.

A wristwatch (an example of a timepiece) includes a small dial (an example of a dial) and a rotary disk (an example of a rotary member). The small dial includes a sun mark for displaying the state of the sun. The rotary disk covers the small dial and rotates in a 24-hour period. The rotary disk includes the sun state indicator that changes the visibility of the sun mark in accordance with the rotational position of the rotary disk. One of the small dial and the rotary member includes a plurality of numbers (an example of indexes) for indicating time. The other of the small dial and the rotary member includes a time indicator that indicates a number in accordance with the rotational position of the rotary disk. The time indicator and the sun state indicator are disposed relative to each other in a positional relationship such that the visibility of the sun mark by the sun state indicator corresponds to the state of the sun corresponding to the number indicated by the time indicator.

A notification control device acquires a plan of a subject, and causes a notifier to notify current day plan content information in a first notification mode and future plan content information in a second notification mode that differs from the first notification mode. The current day plan content information is information about the acquired plan of the subject for current day or is information about the acquired plan of the subject for a certain period including the current day. The future plan content information is information about the acquired plan of the subject for the future of the certain period or is information about the acquired plan of the subject for a certain future period not including the current day.

Disclosed is a mechanical movement including an information display device including at least one indicator member for the information, mounted pivoting about a pivot axis A. The movement encloses a cavity receiving at least the indicator member, the cavity being arranged so that the indicator member is housed entirely inside the movement. The movement includes at least one mobile arranged pivoting coaxially with the pivot axis A and including an outer peripheral toothing, the mobile being housed in the cavity and arranged to carry the indicator member. The mobile includes a felloe including the outer peripheral toothing and defining an inner opening, the felloe carrying an arm passing radially through the inner opening in order to be mounted pivoting on the pivot axis A, the indicator member being represented on the arm. Also disclosed is a timepiece including such a mechanical movement.

A notification control device acquires a plan of a subject, and causes a notifier to notify current day plan content information in a first notification mode and future plan content information in a second notification mode that differs from the first notification mode. The current day plan content information is information about the acquired plan of the subject for current day or is information about the acquired plan of the subject for a certain period including the current day. The future plan content information is information about the acquired plan of the subject for the future of the certain period or is information about the acquired plan of the subject for a certain future period not including the current day.

A lunar phase display device including an annular cover including four ring portions, two successive ring portions being separated by a convex lobe projecting radially towards the inside of the annular cover; a moon indicator disc, a drive device arranged to move the moon indicator disc so that the disc makes a cycloidal trajectory between two successive lobes, the moon indicator disc being at least partially occulted by each of the two lobes during one portion of the cycloidal trajectory so as to reproduce the phases of the moon during a lunar month.

A horology calendar system (100; 200) comprising: a date display member (10) including an opening (10a); and a month display member (30) arranged in such a way as to display an indication of the month in the opening (10a), notably when the opening (10a) is visible to a user of the calendar system and/or when the calendar system is indicating the first day of a given month.

Apparatus for telling time by aligning a plurality of partial images from time to time to form a composite image, including a motor having two or more concentric rotating output shafts rotating at different speeds. Each of the partial images is supported by one of the shafts. As a function of the relative rates of rotation of the shafts, all of the partial images become aligned from time to identifiable time to form the composite image. Each and every rotating disc in these examples is attached to a power driven shaft. This is a common concentric shaft with three differing powered rotations, one at sixty rotations per hour, another at two rotations per twenty-four hours, and the remaining one at 3600 rotations per hour. These rotating discs are identified respectively as the minute disc, the hour disc, and the secondhand disc and are attached to their respective individual shafts.

A watch includes a timepiece movement including a mechanism for displaying a time period or season which includes a first wheel which is provided in order to turn once in thirty-one days for displaying a day of the month, and a second wheel for displaying another time period or season. The second wheel turns more quickly than the first wheel for displaying this time period or season, and the second wheel is provided in order to be displaced from the first wheel, at the rate of one turn in a period of time between 340 days and 380 days.