Lvmh Swiss Manufactures Sa

Zenith International S.a.

Jean-Pierre Charpier

Yves Corthesy

A timepiece equipped with an alarm mechanism having a striking device and a minute repeater mechanism provided with a striking device. The two striking devices share at least one gong and one hammer. A power source can be locked when the mechanism is at rest and unlocked when the mechanism is in operation. An adjustment system can be used to program the alarm time. A trigger system includes a control member which controls the unlocking of the power source and a cam which is kinematically connected to the movement and performs one revolution every 24 hours. A first striking mechanism is equipped with at least one hammer arranged to strike at least one gong, and a supplemental striking mechanism is equipped with at least one hammer arranged to strike at least one non-resonant object, wherein the power source drives one or the other of these striking mechanisms.

Timepiece comprising an alarm

For a timepiece movement, a striking train mechanism having: at least one resonant element () which can emit at least two sounds of different frequencies, at least two pallets (), and at least two hammers () which are designed to be driven by the pallets () in order to strike the resonant element ().

Timepiece comprising a minute repeater mechanism

A timepiece with an alarm mechanism having: a power source () which is locked when the mechanism is at rest and unlocked when the mechanism is in operation; an adjustment system which can be used to program the alarm time; and a trigger system that includes a control member () which controls the unlocking of the power source and a cam () which is kinematically connected to the movement and performs one revolution every 24 hours. The alarm mechanism also has a first striking train mechanism equipped with at least one hammer () arranged to strike at least one gong (), and a second striking train mechanism equipped with at least one hammer () arranged to strike at least one non-resonant object (), wherein the power source () drives one or the other of the striking train mechanisms.

The invention relates to an instantaneous mechanism for controlling the date indicator () of a timepiece movement. It comprises: a 24-hour wheel () pierced with a first cutout (), a date driving wheel () mounted to rotate freely on the 24-hour wheel (), coaxial therewith and having a pin () which fits into the cutout and a tooth () which collaborates with the indicator () to cause it to move on step by step each day at around midnight, and a spring balance () collaborating with the pin (). These components are shaped, sized and arranged in such a way that, at around midnight, the balance () escapes from the pin () and returns abruptly to its rest position, throwing forward the pin () and the driving wheel () whose tooth () strikes the date indicator () to cause it to move on by one step.

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Morteau, France

Jean-Pierre Charpier