Montres Breguet S.a.

Lucien Germond

Polychronis Nakis Karapatis

Gaetan Villard

Stephane Beugin

Vincent Laucella

Jérôme Favre

Nakis Karapatis

Sylvain Marechal

Stéphane Beugin

Adrien Chappuis

Ludovic Charvier

Anthony Schwab

Gaëtan Villard

Sylvain MARÉCHAL

An external component () of a watch or of an item of jewellery, including a substrate () produced in a transparent material, said substrate () comprising an inner face () opposite an outer face (), the external component () being characterised in that the inner face () has a structuring () extending over its entire surface, said external component () comprising at least one metallic layer, referred to as 'inner metallic layer' () deposited on a portion of the surface of the inner face (), so as to form a decoration, the portion(s) of the surface of the inner face () not covered by the inner metallic layer () being covered by an anti-reflection coating ().

External component of a watch or of an item of jewellery and method for manufacturing such and external component

An external part element or component for a timepiece or piece of jewellery made with a fibre-reinforced polymer matrix composite material, this external part element including on at least one of the faces thereof at least one cavity wherein an insert made of metallic glass is housed. A method for manufacturing such an external part element is also described.

External part element for timepiece or piece of jewellery and method for manufacturing such an external part element

Balance spring stud including, around a housing receiving a balance spring of reference thickness, a one-piece component made of a shape memory alloy and including two lugs, each arranged to rest on one of the surfaces of the balance spring, and wherein, in the free state, the minimum width of the air gap of the lugs is greater than the maximum value of the reference thickness when the component is in an open position corresponding to a martensitic structure, and wherein the maximum width of the air gap is less than the minimum value of the reference thickness when the component is in a closed position corresponding to an austenitic structure, and the balance spring includes an area of lesser thickness having a minimum thickness equal to the reference thickness, surrounded by areas of large thickness having a minimum thickness greater than the reference thickness.

Balance spring stud for a timepiece

Watch cannon-pinion including a first bore for receiving a pivot-shank including, on either side of a recess, a first shoulder and a second shoulder. This cannon-pinion is made in two parts and includes, on the one hand, a body comprising internally the first bore and externally a support shoulder, and on the other hand, a shape memory alloy ring including a second bore, and, in the free state, the second bore has a larger diameter than that of the support shoulder when the ring is in a martensitic structure, and a smaller diameter than that of the support shoulder when the ring is in an austenitic structure.

Watch cannon-pinion

The striking watch () includes a watch case, which is formed of a middle part () and a back cover () removably secured to the middle part, and a crystal () that closes the case in a sealed manner. A watch movement () is held inside the watch case on a plate (). The watch movement is provided with a striking mechanism able to be actuated at determined times to produce a sound. At least one acoustic membrane () is arranged between the back cover () which includes at least one lateral aperture () and the plate () of the watch movement. This acoustic membrane is made of amorphous metal or metallic glass to radiate the sound produced by the striking mechanism towards the exterior of the case.

Striking watch with an acoustic membrane

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Grandson, Switzerland

Lucien Germond