Montres Breguet S.a.

Daniel Matteazzi

Alain Zaugg

Christophe Bifrare

Jerome Mace

Jérôme Macé

A method for reference time setting of the displays () of a sympathetic watch () by a sympathetic clock () forming a sympathetic assembly () with the watch () which includes a coupling mechanism () between its display and finishing gear trains, and a hammer () movable between a coiled position where it is retained by a pawl, and an active position where it rests on an hour heart cam () carried by an hour wheel () of said watch (), to constrain it in rotation to its smallest radius.

Sympathetic timepiece assembly

A method for acquiring data on a sympathetic clock () for setting the time of a sympathetic watch () at request. The sympathetic watch forms with the clock () a sympathetic assembly (). The watch includes an hour display () and a minute display (), a reference position of which will be defined at a reference time, and the clock () performs the time setting of the watch (), either when the watch () is placed on the clock (), or alternatively at a predetermined time on the clock (), or at request by action of a user on a control means () included in the clock () or the watch (), or upon control of a horological movement () included in the clock ().

A system adjusts the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is mounted such that it can pivot. The adjusting system includes an adjusting member allowing an action to be applied to an angular position of the first toothed wheel set to adjust the angular position of the first toothed wheel set relative to the support. The invention adjusting system can be incorporated into a timepiece.

System for adjusting the position of a first toothed wheel set relative to a support on which the first toothed wheel set is pivotably mounted and timepiece comprising such a system

A system for adjusting the angular position of a first toothed wheel set relative to a support on which the first toothed wheel set is mounted such that it can pivot. The adjusting system includes an adjusting member allowing an action to be applied to an angular position of the first toothed wheel set so as to adjust the angular position of the first toothed wheel set relative to the support. A timepiece can include such an adjusting system.

A date calendar display mechanism driven via a kinematic chain by a horological movement of a timepiece. A first and second date indicators, the first date indicator remaining still during a 24-hour period separating the passage from the last day of a month having 31 days to the end of the first day of the following month, the kinematic chain including a wheel continuously engaged with the horological movement and having a toothing via which the wheel meshes with a pinion which contributes to driving the first indicator, the wheel being, at one point, devoid of teeth such that, during the above 24-hour period, the wheel does not mesh with the pinion and remains still. A dual jumper pivots about an axis with a first beak via which it is engaged with a toothing of the first date indicator and, at a second beak via which it is engaged with a toothing of the pinion, the dual jumper being elastically held engaged with the first date indicator and with the pinion.

Large date calendar display mechanism and timepiece comprising same

A repeater mechanism includes: an hour part, which is mobile between a resting position and a reading position; an hour spring that returns the hour part towards its reading position; a chain that is hooked to the hour part; a barrel that includes a shaft, a drum, a spring, a pulley that is mobile in rotation relative to the shaft and on which the chain is hooked, and also a ratchet that is integral in rotation with the barrel shaft and coupled to the pulley as long as the hour part exerts a traction force on the chain, and uncoupled from the pulley as soon as this traction force is cancelled out; and a pulley spring that is interposed between the ratchet and the pulley.

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Le Sentier, Switzerland

Daniel Matteazzi