Eta Sa Manufacture Horlogere Suisse

Rolex Sa

Julien Saglini

Baptist Wyssbrod

Laurent Klinger

Raphaël Courvoisier

Stephane Bachmann

Stéphane Bachmann

Florent Millet

A mechanical horological movement () including at least one barrel system () for driving a set of wheels and power reserve detector. The detector () includes a control wheel () disposed opposite the cage of the barrel system () and is rotated by a complementary wheel () at the differential output to determine a power reserve level. An aperture () has a first end () to define a complete charge of the barrel system and a second end () to define a complete discharge. A lever () is rotatably mounted about a lever axis parallel to the axis of rotation of the control wheel. A contact element () disposed in the aperture contacts the second end during a zero power reserve indication. A portion of the lever contacts a component of the movement to stop its operation when power reserve indication is at zero.

Mechanical horological movement with power reserve detection

A timepiece indexing element (), coaxially cooperating with a component () including an indexing relief (), including indexing parts () cooperating with this indexing relief () for their relative indexing in a plurality of indexing positions, and carried by first elastic arms () each including a first indexing surface (), each first elastic arm () being arranged to exert a pushing force that is substantially radial relative to this component (), and this indexing element () includes at least a first bearing surface () arranged, in the free state in a service position, to remain at a distance from a second complementary bearing surface () that a component () includes, and in the event of impact, to cooperate in abutment and/or guide bearing with the second complementary bearing surface (), each first bearing surface () being carried by a second elastic bearing arm () cantilevered in the indexing element ().

Timepiece indexing element

A fixing device for adjusting the clearance of a balance. At least one fixing device including at least one stud holder, at least one bearing body, at least one support member and at least one holding member. At least one bearing body is configured to move relative to at least one stud holder so as to fix the adjustment of the clearance of the balance and at least one support member is configured to press at least one bearing body against at least one stud holder before being held by at least one holding member.

Balance clearance adjustment fixing device

A timepiece indexing element cooperating coaxially with a component including an indexing relief element defining indexing positions, including a first bearing surface cooperating in abutment with the component, elastic return device exerting a radial thrust on this component to press it onto this first bearing surface, and indexing device cooperating with the indexing relief element, these elastic return devices include at least a first elastic arm including a first indexing surface comprised in this indexing device and arranged to exert a radial thrust force on the component and, at least a second elastic arm arranged to exert a radial thrust force on the first elastic arm.

A timepiece mobile for a semi-instantaneous jump mechanism, including a stop member, an elastic return device, and a drive wheel including, around an axis a hub for guiding this movable stop member with respect to the drive wheel and including a disengageable stop finger movable between a wound position where its radial extension is maximum with respect to the axis, and an unwound position where its radial extension is minimal with respect to the axis, this stop finger being moved away from the axis by the elastic return device, and the stop member including a housing the walls of which are arranged to bearingly cooperate, during the winding of the elastic return device with a contact surface that this elastic return device includes to limit the value of the winding and to limit the deformation of the elastic return means to its elastic range only.

Timepiece mobile for a semi-instantaneous jump mechanism

A date and moon phase display mechanism for watches, including a date ring with an inner toothing arranged to be driven by a timepiece movement, or arranged to cooperate with a date ring with an inner toothing of a timepiece movement, this mechanism including a moon display wheel set held in position by a moon jumper, this mechanism including drive devices, which are actuated by this inner toothing during each rotation of this date ring, and which are arranged to drive this moon display wheel set by a first constant angular pitch during each this rotation of this date ring.

Date and moon phase display mechanism for watches

The mechanical timepiece movement with running reserve indication comprises at least one barrel system with a winding output connected to a winding wheel of a differential gear, and with an unwinding output connected to an unwinding wheel of the differential gear. It includes a locking wheel set driven in rotation by an intermediate wheel of the differential gear. The locking wheel set is connected to a running reserve indicator to display the running reserve. The locking wheel set includes a locking element for coming into contact with the unwinding wheel of the differential gear when the running reserve is at zero, in order to lock the timepiece movement.

Mechanical timepiece movement with running reserve detection

A control mechanism for control of a plurality of timepiece displays, including a group with one first display and one second display which are separate, driven, according to a reference period, by a timepiece movement, and including, for each group of displays, a train provided to drive, according to a control period, a control moving body, this mechanism including, for each group, a first control element, for control of the first display, and a second control element, for control of the second display, at different moments within the control period, and control device for disengaging the first and the second control elements, including a control lever, which is provided to pivot with a to-and-from motion, according to a limited angular course, and which supports the first control element and the second control element.

Timepiece mechanism for control of a plurality of displays

The mechanical timepiece movement with power reserve indication comprises at least one barrel system connected to a winding wheel of a differential gear and an unwinding wheel of the differential gear. An intermediate wheel of the differential gear is connected to a cam wheel set to drive it in rotation via a reducing stage. A rack, which acts on a power reserve indicator, is in contact with the cam wheel set. When the power reserve is at zero, a locking part of the rack comes into contact with a locking member to lock the movement at an unwinding output of the barrel system or in contact with the unwinding wheel of the differential gear.

Mechanical timepiece movement with power reserve detection

A bidirectional correction mechanism for correcting the position of a first and of a second gear train, via a setting device driving a corrector pinion, including a correction lever pivoting on an arbor of the corrector pinion, which carries, meshing with the corrector pinion, a first wheel set for driving the first gear train, and a second wheel set for driving the second gear train. This mechanism includes an elastic element which, in the absence of action on the setting device, returns the correction lever to a neutral position wherein the wheel sets are uncoupled from the first and second wheel trains, and either a friction connection between the correction lever and the arbor, or a friction connection between the elastic element on the one hand, and the first wheel set and the second wheel set on the other hand.

Timepiece mechanism for bidirectional correction of a plurality of displays

A barrel for timepiece movement, comprising a barrel shaft () around which is arranged, in a rotationally mobile manner, an assembly comprising a drum () and a cover () delimiting a housing () for receiving a barrel spring (), the drum () and the cover () each having a wall () extending from a peripheral end () of the barrel to a central end of the barrel at the level of the barrel shaft (), wherein at least a part of at least one of said walls () has a variable thickness which increases continually with distance away from the peripheral end of the barrel.

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Bienne, Switzerland

Julien Saglini