Abstract: A mechanism for displaying the periods of an annual cycle (100) for a timepiece (200) capable of being driven by being dragged by a running train (10) of a horological movement (1), characterised in that the mechanism for displaying the periods of an annual cycle (100) includes: an indicator (110) indicating the periods of an annual cycle; an annual cycle train (120) capable of being driven by said running train (10) of the horological movement (1), and of rotating the indicator of the periods of an annual cycle (110); the mechanism for displaying the periods of an annual cycle (100) being characterised in that the annual cycle train (120) forms a gear train between the running train (10) and the indicator of the periods of an annual cycle (110) including at most four gearings.

Abstract: A mechanism for displaying the periods of an annual cycle (100) for a timepiece (200) capable of being driven by being dragged by a running train (10) of a horological movement (1), characterised in that the mechanism for displaying the periods of an annual cycle (100) includes: an indicator indicating the periods of an annual cycle (110); an annual cycle train (120) capable of being driven by said running train (10) of the horological movement (1), and of rotating the indicator of the periods of an annual cycle (110); the mechanism for displaying the periods of an annual cycle (100) being characterised in that the annual cycle train (120) forms a gear train configured to have a ratio of 1:365.2 or a ratio that is a multiple of 1:365.2 between the running train (10) and the indicator of the periods of an annual cycle (110).

Abstract: Provided is an ambient physical variable measuring device (5) including an element configured to mechanically deform under the effect of a variation of a physical variable to rotate a physical variable measured value indication train including a physical variable maximum value display wheel (21). An indexing mechanism (40) to index the position of a physical variable maximum value display train (24) at each advance, the indexing mechanism (40) comprising a blocking organ (41) cooperating with an indexing wheel assembly (43). The the indexing wheel assembly (43) is kinematically connected to the physical variable maximum value display wheel (21) by a gear train T1, T2 and in that the gear ratio of the gear train T1, T2 between the physical variable maximum value display wheel (21) and the indexing wheel assembly (43) is a multiplication ratio.

Abstract: Provided is a timepiece mechanism (1, 1?) indicating information relating to the ambient pressure. The timepiece includes an ambient pressure measuring device that deforms mechanically due to ambient pressure variation. The device includes a first wheel assembly (31) kinematically linked to the ambient pressure measuring device that rotates under the effect of an ambient pressure variation and a measured pressure indicator mechanism (40) including a measured pressure indicator organ. The device also includes a second wheel assembly (33) configured to be in uncouplable connection with the first wheel assembly (31) so thesecond wheel assembly (33) is rotated by the first wheel assembly (31) under the effect of the pressure variation. Also included is a zero-reset mechanism (100) to position the measured pressure indicator organ (44) in a reference position by uncoupling the second wheel assembly (33) from the first wheel assembly (31).