Rolex Sa

Montres Tudor Sa

Jean-Louis Bertrand

Thomas Gyger

Vincent Von Niederhäusern

William Passaquin

Benoit Boulenguiez

Pascal Billet

Albert Bortoli

Pierre-Alain Graemiger

Daniel Moille

Daniel Fiammingo

Raoul Behrend

Frédéric Burger

Gregory Schmidt

Jerome Tyrode

Félix Grasser

Yvan Serikoff

Grégory Schmidt

Sylvie Ribeyrolles

Thomas Cimprich

Jérôme Tyrode

Frederic Mossiere

Benoît Boulenguiez

Stéphane Moreau

Vincent Von NIEDERHÄUSERN

Frédéric MOSSIÈRE

The invention relates to a barrel spring () including: an inner end () and an outer end; a first portion () having a first height (H); a second portion () having a second height (h) that is smaller than the first height (H) and being located near the inner end (); and, at the second portion, e.g. at the inner end, a first attachment element () suitable for being attached to the barrel shaft, wherein the second portion is to be inserted into a circumferentially extending groove provided on the barrel shaft.

Barrel shaft for a clock movement, barrel spring, and barrel including such a spring and/or such a shaft

A timepiece transmission device (), particularly for a timepiece mechanism () and specifically for an automaton chain () of a timepiece movement (), includes: a first device (), particularly a first freewheel device (), for unidirectionally connecting a first portion () to a second portion (); and a brake () arranged so as to brake, particularly by friction, the first portion in relation to the second portion.

Timepiece transmission device

A balance spring system of a horology movement, comprising:

System for securing a balance spring

An oscillator () includes a spiral spring () made from a paramagnetic or diamagnetic material and an assembled balance wheel () having a shaft () on which the following elements are fitted: a balance wheel (), a plate () and a collet () rigidly connected with the spiral spring (). The maximum diameter (Dmax) of the shaft is less than 3.5, or even 2.5, or even 2 times the minimum diameter (D) of the shaft on which one of the elements is fitted, or the maximum diameter (Dmax) of the shaft is less than 1.6, or even 1.3 times the maximum diameter (D) of the shaft on which one of the elements is fitted.

Oscillator for a clock movement

A shock-absorber body () for an assembled balance () of a horological oscillator (), comprising a guiding portion () for the shock-absorber body () for its mounting on a bridge () and a fastening element () for an outer end of a spiral spring () of the oscillator.

Shock absorber body for a balance of a horological oscillator

Barrel shaft for a clock movement, barrel spring and barrel including such a spring and/or such a shaft

A watch case () has a middle (), a bezel () mounted to turn on the middle, a ring () interfacing between the middle and the bezel, and a first indexing element () and a second indexing element () which collaborate in such a way as to index the bezel in position relative to the middle, a first elastic element () pressing the bezel against the middle and a second elastic element () pressing the first indexing element against the second indexing element (), the ring comprising an opening () through which the first or the second indexing element is arranged.

Watch case with orientable and indexed bezel

This watch case comprises a protective casing surrounded by a middle () and a bezel (). The protective casing includes a glass (), a side wall () and a bottom (). A planar peripheral surface extending along the entire edge of the inner face of the glass is in contact with a similar bearing surface on the side wall (), at least part of which forms the width of the cross section of a pressure resistant structure having parallel lateral faces (SR) perpendicular to the bearing surface, and which extends without a gap as far as the bottom () of the casing. The components of the casing are secured and sealed with at least one annular seal () surrounding the lateral face of the glass () and the outer lateral face of the side wall () of the casing, and this seal is clamped.

Sealed wrist watch case

This device comprises a first axial retention shoulder secured to the case, adjacent to a cylindrical seat, a second, opposite axial retention shoulder formed by one face of an annular groove secured to the rim, an annular retention element made of polymer bearing against each of said shoulders, said first shoulder being adjacent to the base of a conical surface, secured to the case, for the axial introduction of said annular retention element engaged with said annular groove. Said annular retention element forms an endless ring whose section is divided in the radial direction into two portions of which one is, perpendicularly to the plane of said endless ring, substantially thinner than the other, these two portions being intended to interact respectively with said first shoulder and second shoulder.

Linking device between a rim and a case of watch

Growing community of inventors

Feigeres, France

Jean-Louis Bertrand