Eta Sa Manufacture Horlogere Suisse

The Swatch Group Research and Development Ltd

Omega Sa

David Benjamin Kraehenbuehl

Martin Jufer

Marco Bettelini

Daniel Gruenig

Roger Mueller

Pascal Winkler

Baptist Wyssbrod

François Gueissaz

Laurent Klinger

Alain Jornod

Thierry Altenhoven

Andre Nussbaum

Vincent Meyer

Jonathan Collaud

Ines Ruestenberg

Yann Lavenu

Thomas Stoeckli

Patrick Cano

Olivier Mahler

Roger Muller

Roger Müller

André Nussbaum

Roger MÜLLER

A case () for a wristwatch () including: a middle part () including a wall () having two attachment areas () of the bracelet () disposed on either side of a plane (P) transverse to the middle part () substantially perpendicular to a back () of the case (); two horns () capable of ensuring the complete attachment of the bracelet () to the middle part () by being connected to different ends of this bracelet (), said horns () being removably and slidably attached to said attachment areas (), and the back () attached to a mounting area () of the case () participating in blocking the horns () in translation in a direction of sliding (D) on the middle part () parallel to a central axis (A) of the case ().

Watch with removable horns

A testability method () for testing the operation of a thermoelectric element () of a thermoelectric watch () including the thermoelectric element (), a power circuit supplied by primary storage elements () and secondary storage elements () so as to move at least one moveable element () or display information on an electro-optical display device. The testability method () includes steps of applying a heat source () to the thermoelectric element () so as to make it possible to electrically charge () or recharge () the secondary storage elements () in order to move at least one moveable element () or display information on an electro-optical display device, and thus check the functionality of the thermoelectric element ().

Test method of a thermoelectric element

A timepiece including a case that houses a main plate of a movement surmounted by a dial, and a support including fastening studs arranged on an upper face of the main plate for mounting the dial. The dial and the support include an angular locking mechanism for locking an angular position of the dial on the support, and the dial is assembled to the main plate by at least one flexible fastening element integral with the dial and arranged in the plane of the dial.

Timepiece provided with a dial and associated fastening method

A device for mounting an electrical energy source in portable electronic equipment is provided, including a cavity and a cover configured to close the cavity, the cover including a housing configured to receive the energy source, the cover and the portable electronic equipment having complementary fixing means in order to retain the cover on the portable electronic equipment and to seal the cavity, and the cover including means for retaining the energy source in the housing of the cover.

Device for mounting an electrical source

A motor module includes a stator formed of a main plate of a first thickness on which is mounted a rotor The stator has at each end a receiving zone, the thickness of which is less than the first thickness.

Simplified motor module

The present embodiments provide a method for unlocking a function of a device using a timepiece including a display device including display elements and a control device driving the display elements in a predefined animation sequence. The method including that the timepiece is placed in front of a detection device, the control device is actuated to drive the display elements in the predefined animation sequence, the predefined animation sequence is detected by the detection device, the detected animation sequence is compared to a reference animation sequence, and if the detected animation sequence is identical to the reference animation sequence, then the function is unlocked.

Method for unlocking a function using a timepiece

A watch intended to be removably mounted on a support, including a watch case and an independent removable attachment device arranged to retain the watch case in an opening provided in the support, the watch case including an upper portion, on the dial side, and a lower portion including a back cover, the lower portion being arranged to be housed inside the opening in the support and being of smaller dimensions than those of the upper portion to form a flat peripheral shoulder. The attachment device includes a flange having a central opening arranged to receive the lower portion of the watch case and an inner rim delimiting the central opening, the inner rim being arranged to be housed inside the opening in the support. The inner rim includes a locking device for locking the attachment device on the lower portion of the watch case.

Watch intended to be mounted on a removable support

Timepiece movement including a date display drive device formed of a display disc including a toothing, said drive device including driving means and a drive source. The driving means includes a wheel set including pins, having a toothed wheel and a pinion including pins, and an engaging wheel engaging said toothed wheel. The pinion with pins includes a pair of pins configured to be positioned on either side of any tooth of the toothing. The toothed wheel of the pin wheel and the engaging wheel respectively have complementary non-circular profiles. When the two pins are oriented in a tangential direction to the toothing, these two wheels have a first gear ratio that is lower than a second gear ratio between them when the two pins are in perpendicular alignment to said tangential direction.

Timepiece movement including an analogue display drive device

Device with coaxial disengageable wheels for a timepiece movement including an input wheel, an output wheel, a hub, and a jumper mechanism including a spring and positioning elements defining a certain number of discrete angular positions of the input wheel with respect to the output wheel around an axis of rotation. The positioning elements including hollow elements and protruding elements, the spring being configured to apply an elastic force pushing the protruding elements against the hollow elements to couple the wheels to each other below a disengagement torque. The protruding elements and the hollow elements extend in the axial direction and the spring is configured to apply an elastic force in the axial direction.

Coaxial disengageable wheels for a timepiece movement

A timepiece including a case that accommodates a movement including a lower peripheral bearing surface, the case including a case middle to which a back cover and a crystal are respectively assembled. The timepiece further includes a clamping element including a lower retaining surface and the movement includes an upper peripheral bearing surface, the lower retaining surface of the clamping element and the upper peripheral bearing surface being in mutual contact. The back cover includes an annular peripheral shoulder, against which is affixed the lower peripheral bearing surface of the movement, which is compressed between its lower peripheral bearing surface and its upper peripheral bearing surface respectively by the annular peripheral shoulder of the back cover and the lower retaining surface of the clamping element.

Device and method for fixing a movement inside a case

Timepiece wheel () comprising teeth () with play compensation each including a catch () projecting from a catch foot (), and an elastic strip () projecting from a strip foot () opposite said catch () from which said strip () is separated by a ventral notch () and an intrados profile () of which, on the side opposite said catch (), delimits a dorsal notch (), said strip foot () being delimited, towards the pivot axis (D) of said wheel (), by an inner end () of said ventral notch () and by an inner end () of said dorsal notch (). Said inner end () is located closer to said axis (D) than said inner end () and extends, on the side of said axis (D) underneath said catch foot () or underneath the inner extension () of said ventral notch () towards said pivot axis (D).

Growing community of inventors

Bettlach, Switzerland

David Benjamin Kraehenbuehl