Rolex Sa

Denis Favez

Richard Bossart

Olivier Hunziker

Frédéric Burger

Marc Cerutti

Stefano Hénin

Stephano Henin

Claire Manaranche-Boyes

Stefano HÉNIN

Ann-Kathrin Audren

A horology component based on a fragile material, wherein said component comprises at least one surface part of fragile material covered with a coating () comprising at least two layers CE of elastic material () separated by a layer CR of a material () stronger than the elastic material ().

Horology component

Timepiece component based on a micromachinable material, including at least one micromachinable-material surface portion that is smoothed at least by hydrogen smoothing. The at least one micromachinable-material surface portion includes an oxide layer of thickness larger than 1 micron in order to increase its mechanical strength. In a particular embodiment the micromachinable material can be silicon and the oxide layer silicon oxide.

Strengthened timepiece component

A method for determining an imbalance characteristic of a hairspring () balance () oscillator () of a timepiece movement (), the method comprising at least the following steps: &#x2014;Setting the hairspring balance oscillator in an oscillating motion at at least two amplitudes, &#x2014;Determining, for each amplitude and for at least two positions of the oscillator, a piece of data representative of the oscillation period of the oscillator, &#x2014;Using the data from the previous step to calculate the imbalance characteristic of the hairspring balance oscillator.

Method for determining an imbalance characteristic of an oscillator

Growing community of inventors

Le Grand-Saconnex, Switzerland

Denis Favez