Patek Philippe Sa Geneve

Manufacture Et Fabrique De Montres Et Chronometres Ulysse Nardin Le Locle Sa

Stéphane Von Gunten

Frédéric Maier

Sylvain Jeanneret

Jean-Pierre Musy

Pierre Gygax

Lucas Humair

A method of manufacturing a timepiece component, such as a balance, an oscillating mass or a wheel, comprises a micro-manufacturing technique, such as the DRIE technique. The method may comprise forming at least one member in or at the periphery of the structure, of a material different from that of the structure. This member is typically metal and is formed by electro-forming using a cavity of the structure as a mold.

Method for making a timepiece component

A spiral spring () for the movement of a watch, includes a plurality of coplanar leaves () wound into one another. Furthermore, the inner ends of each leaf are rigidly connected to a single collet (). The leaves () and the collar () are produced as a single part.

Spiral spring

A timepiece component, such as a balance, an oscillating mass or a wheel, having a structure made according to a micro-manufacturing technique, such as the DRIE technique. The component has at least one member formed in or at the periphery of the structure and made of a material different from that of the structure. This member is typically metal and is formed by electro-forming using a cavity of the structure as a mold.

Timepiece component and method for making same

A balance spring-collet assembly for a timepiece movement comprises a collet () and a balance spring () attached at its inner end to the collet (). The collet () is capable of being mounted onto a shaft (). The external periphery of the collet () defines abutments () against which the inner turn of the balance spring () may come to rest during a shock before the elastic limit of the inner turn is exceeded. The abutments () are situated at respective distances (Ra, Rb, Rc) from the center (O) of the shaft () that increase in the direction (D) of the balance spring () from the inside to the outside starting at the point () of junction between the balance spring () and the collet ().

Growing community of inventors

La Chaux-de-Fonds, Switzerland

Stéphane Von Gunten