An electronic timepiece has a plurality of modes and includes a plurality of indicating hands including a first indicating hand as a mode hand that indicates each mode, an operation section that allows mode switching operation that instructs switching among the modes, and a display control section that moves the plurality of indicating hands to be moved on the basis of the mode switching operation in such a way that periods for which the plurality of indicating hands move in high-speed advance action do not overlap with one another. The display control section first moves the first indicating hand among the plurality of indicating hands.

An electronic timepiece has a plurality of modes and includes a plurality of indicating hands including a first indicating hand as a mode hand that indicates each mode, an operation section that allows mode switching operation that instructs switching among the modes, and a display control section that moves the plurality of indicating hands to be moved on the basis of the mode switching operation in such a way that periods for which the plurality of indicating hands move in high-speed advance action do not overlap with one another. The display control section first moves the first indicating hand among the plurality of indicating hands.

A timepiece display mechanism includes a rotating display member for displaying a magnitude other than the current time of day, or a position in a cycle. The rotating display member is integral in rotation with a snail cooperating with the beak of a striking rack included in a striking mechanism integrated in or juxtaposed with this display mechanism, to strike a numerical value characteristic of this magnitude, or respectively of this position. The display mechanism is more particularly a chronograph mechanism including a seconds snail integral with a main chronograph wheel, for counting the seconds and cooperating with a seconds rack, and a minute snail integral with a minute counter wheel for counting the minutes and cooperating with a minute rack, in order, after timing a duration, to strike the minutes and seconds of the timed duration.

A timepiece display mechanism includes a rotating display member for displaying a magnitude other than the current time of day, or a position in a cycle. The rotating display member is integral in rotation with a snail cooperating with the beak of a striking rack included in a striking mechanism integrated in or juxtaposed with this display mechanism, to strike a numerical value characteristic of this magnitude, or respectively of this position. The display mechanism is more particularly a chronograph mechanism including a seconds snail integral with a main chronograph wheel, for counting the seconds and cooperating with a seconds rack, and a minute snail integral with a minute counter wheel for counting the minutes and cooperating with a minute rack, in order, after timing a duration, to strike the minutes and seconds of the timed duration.

An acoustic timepiece display mechanism includes a chronograph repeater for the acoustic display, by a striking mechanism, of a duration measured by a chronograph mechanism. The striking mechanism includes a winding lever for driving a rack to move a striking unit including a rack pinion integral with a striking ratchet, to move a striking rack to read the magnitude concerned and to release a corresponding strike function. The acoustic display mechanism includes, between a control mechanism included in the chronograph mechanism and the winding lever, a safety mechanism arranged, depending on the position of the strike wheel set, to allow or prevent travel of an operating lever of the control mechanism of the chronograph mechanism, which operating lever is arranged to be pivoted under the action of a chronograph start pusher.

An acoustic timepiece display mechanism includes a chronograph repeater for the acoustic display, by a striking mechanism, of a duration measured by a chronograph mechanism. The striking mechanism includes a winding lever for driving a rack to move a striking unit including a rack pinion integral with a striking ratchet, to move a striking rack to read the magnitude concerned and to release a corresponding strike function. The acoustic display mechanism includes, between a control mechanism included in the chronograph mechanism and the winding lever, a safety mechanism arranged, depending on the position of the strike wheel set, to allow or prevent travel of an operating lever of the control mechanism of the chronograph mechanism, which operating lever is arranged to be pivoted under the action of a chronograph start pusher.

The present invention relates to a timepiece comprising a watch movement including a complication of the chronograph or countdown type, a fixed body (10) and a display (20) with moiré effect for displaying a time information associated with the chronograph or the countdown. The display comprises a mobile disc (22) with an indicator (24) of the time information. The mobile disc (22) is, on the one hand, connected to an axis (23) in engagement with the watch movement and, on the other hand, arranged to rotate above or below the fixed body (10). One of the mobile disc (22) and the fixed body (10) comprises a plurality of apertures (26) arranged over 360°. The other of the mobile disc (22) and the fixed body (10) comprises a marking with a repetition of patterns including a first set of patterns having a first visual appearance (27) and a second set of patterns having a second visual appearance (28). The patterns having the first visual appearance are arranged alternately with the patterns having the second visual appearance over 360°. The plurality of apertures (26) are separated from each other by a plurality of portions (30) intended to progressively mask the patterns of the marking in order to produce the moiré effect when the mobile disc (22) is rotated.

Descriptions of time altering apparatuses for removing a need for leap seconds are provided. Currently leap seconds are applied to Universal Time Coordinated (UTC) in order to align UTC with mean solar time. In one embodiment a time measurement system is connected to a gigantic heavy flywheel positioned at at least one of a north rotational pole or south rotational pole of the Earth. The time measurement system may determine a shift of UTC away from mean solar time and may subsequently speed up or slow down the flywheel to adjust a rotational speed of the Earth in order to move UTC back to mean solar time. In a second embodiment a similar time measurement system may raise or lower heavy weights into mine shafts drilled at or near the equator of the Earth for a similar effect. Planetary speed adjustments may be written to a blockchain.

An acoustic timepiece display mechanism includes a chronograph repeater for the acoustic display, by a striking mechanism, of a duration measured by a chronograph mechanism. The striking mechanism includes a winding lever for driving a rack to move a striking unit including a rack pinion integral with a striking ratchet, to move a striking rack to read the magnitude concerned and to release a corresponding strike function. The acoustic display mechanism includes, between a control mechanism included in the chronograph mechanism and the winding lever, a safety mechanism arranged, depending on the position of the strike wheel set, to allow or prevent travel of an operating lever of the control mechanism of the chronograph mechanism, which operating lever is arranged to be pivoted under the action of a chronograph start pusher.

An acoustic timepiece display mechanism includes a chronograph repeater for the acoustic display, by a striking mechanism, of a duration measured by a chronograph mechanism. The striking mechanism includes a winding lever for driving a rack to move a striking unit including a rack pinion integral with a striking ratchet, to move a striking rack to read the magnitude concerned and to release a corresponding strike function. The acoustic display mechanism includes, between a control mechanism included in the chronograph mechanism and the winding lever, a safety mechanism arranged, depending on the position of the strike wheel set, to allow or prevent travel of an operating lever of the control mechanism of the chronograph mechanism, which operating lever is arranged to be pivoted under the action of a chronograph start pusher.