A device for displaying a succession of periodic events, such as zodiac periors, which form an annual cycle, this display device including a periodic event indicator organ; a mechanism for managing a duration for displaying periodic events by the periodic event indicator organ, this management mechanism including a cam for managing a periodic event display duration arranged to control the change from the indication of a periodic event to the indication of a next periodic event by the periodic event indicator organ; a date indicator mechanism driven by a horological movement; a month finger controlled by the date indicator mechanism so as to advance the management cam by one pitch per month, and a periodic event finger disposed between the management cam and the periodic event indicator organ and arranged to drive the periodic event indicator organ during a change of periodic event.

A timepiece movement, a calendar mechanism and device for indicating the sunrise and sunset that takes account of seasonal variations. The simple calendar mechanism includes a display mechanism for displaying the date and a display mechanism for displaying the month. The sunrise and sunset indicating device also includes an annual cam having a profile representative of the tilt of the sun with respect to the equatorial plane and arranged to be driven in rotation via the hour wheel set through a kinematic chain that passes through the month display device and has a transmission ratio of 1:744.

A timepiece includes a timepiece movement, a calendar mechanism and a mechanism for indicating the sunrise and sunset that take account of seasonal variations. The calendar mechanism includes a date display and a month display. The sunrise and sunset indicating mechanism also includes an annual cam having a profile representative of the tilt of the sun with respect to the equatorial plane and arranged to be driven in rotation by the date wheel set via a third kinematic chain.

A control assembly for an indicator light, (wherein the indicator light structured to emit light in more than two output modes) includes a locator assembly structured to determine the astronomic data for the indicator light, a selector assembly structured to select an output mode of the indicator light, and an output assembly structured to control the output modes of the indicator light. The locator assembly is in electronic communication with the selector assembly. The locator assembly communicates astronomic data for the indicator light to the selector assembly. The selector assembly selects an output mode of the indicator light based on the astronomic data for the indicator light.

An electronic timepiece device comprises an electronic processing unit determining first, geolocation parameters and second parameters concerning the current legal standard time, and establishing local horizontal coordinates of the Sun from predetermined calculation rules stored in a memory of the electronic processing unit. The device also comprises a dial equipped with a casing enclosing all or part of the electronic processing unit and equipped with a display system displaying at least one indicator hand having an orientation that varies over time such that the angle formed between the indicator hand and a first fixed reference axis of the dial is equal, at each instant, to the azimuth of the Sun established by the processing unit, and a time scale calculated by the electronic processing unit and displayed at the periphery of the dial in the form of a plurality of time points positioned, with respect to the first fixed reference axis, as a function of the azimuth of the Sun respectively at the times of which the time points are representative. Thus the indicator needle simultaneously indicates, at each instant, a representation of the relative directions of the Sun and of the cardinal point of the culmination of the Sun and the current legal time.

A device (1), and timepiece having the device, for displaying a succession of periodic events which form an annual cycle, including a periodic events indicator member (2) and a mechanism (4) for managing a duration during which the periodic events are displayed by the periodic events indicator member (2). The management mechanism includes a cam (8) for managing a duration during which the periodic events are displayed, which cam is arranged such that it controls the change from the indication of a periodic event to the indication of a subsequent periodic event by the periodic events indicator member, a periodic driver (10) for driving the management cam (8) and a member (6) disposed between the management cam and the periodic events indicator member and arranged such that it drives the periodic events indicator member (2) during a change in event. The device displays the periods of the zodiac.

An improved astronomical calendar clock mechanism, integrating a sun-centered planetary dial with an earth-centered celestial ring with a fixed orientation number dial located in the earth's equatorial plane, with the sun on a meridian track fixed at 12 on the number dial, and the meridian track indicates the date on a calendar band which is applied to the outside edge of the celestial ring in a plane parallel to the celestial equator, and an hour hand emerging from the earth globe at the center of the celestial ring indicates the time relative to the fixed orientation number dial framing the earth.

A timepiece including a timepiece movement and sunrise and sunset indicating device that take account of the date and geolocation of the user, the device including a first device for receiving the current date, a second device for receiving a geolocation signal, and a disc bearing a representation of the sun, arranged to be capable of pivoting about an axis passing through the centre of the disc. The sunrise and sunset indicating device include a movable horizon arranged to move above the disc and to indicate the position of the sun with respect to the horizon.

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.

The present invention proposes a timepiece mechanism comprising: a lever, rotatable about a lever axis, the angular position of the lever representing a first value, wherein a zero value of the first value corresponds to a reference direction, a sliding block mounted to move in translation on the lever in a direction substantially perpendicular to the axis of the lever and comprising a guide-mark element whose trajectory in translation relative to the lever is secant to the lever axis, the radial position of the guide-mark element with respect to the lever axis representing a second value, an output device formed of a deformable parallelogram in a plane perpendicular to the lever axis, the parallelogram including a first side, which is stationary with reference to the lever axis and perpendicular to the reference direction, a second side, which is opposite to the first side and linked in translation to the guide-mark element in the direction perpendicular to the reference direction,
the angular position of the third and fourth sides of the parallelogram, which are adjacent to the first side, being substantially proportional to the product of the first and second values.