Eta Sa Manufacture Horlogere Suisse

Patrick Moller

Julien Christan

Jean-Luc Helfer

Antonio Merino

Werner Haenzi

An assembly for holding or supporting a timepiece balance spring, includes a balance spring stud and a stud-holder, the stud-holder includes a base having at least one circular portion, the base including, on the circular portion, a first lug and a second lug each extending radially. One of the two lugs includes an elastic arm extending from the lug, in a direction parallel to that of the base, towards the other lug, the elastic arm forming with the base a housing for housing the balance spring stud therein and the first and second lugs are able to cooperate with a tool to allow the balance spring stud to exert a stress on the elastic arm to deform the latter and permit the assembly or disassembly of the stud.

Balance spring stud-holder with simplied assembly

An assembly for holding or supporting a timepiece balance spring, including a balance spring stud and a stud-holder, wherein the stud-holder includes a base having at least one circular portion, the base including, on the circular portion, a first lug and a second lug each extending radially; one of the two lugs including an elastic arm extending from the lug, in a direction parallel to that of the base, towards the other lug, the elastic arm forming with the base a housing for housing the balance spring stud therein and in that the first and second lugs are able to cooperate with a tool to allow the balance spring stud to exert a stress on the elastic arm to deform the latter and permit the assembly or disassembly of the stud.

A chronograph includes a chronograph train, means for coupling the train and a device for controlling the coupling means, which includes: a pivotably mounted shuttle, a first angular sector provided with two notches defining first and second stable angular positions, and a second angular sector that includes cut out portions, an elastic member cooperating with the notches to keep the shuttle in one of the stable positions, and a push-piece cooperating with the cut out portions to pivot the shuttle, via a first application of pressure, from the first stable position to the second stable position, and via a second application of pressure, from the second stable position to a third intermediate angular position.

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Flumenthal, Switzerland

Patrick Moller