ETA SA Manufacture Horlogère Suisse

A stone ( 1 ) forming a guide element for the pivot ( 14 ) of an axis ( 12 ) of a horology mobile ( 13 ), the stone ( 1 ) including a main part ( 23 ) designed to be pressed in a bed ( 19 ) of a horology support ( 16 ), such as a plate or a bar on a horology movement, as well as a hole ( 15 ) for the pivot ( 14 ) of said axis ( 12 ), the stone ( 1 ) including a protruding part ( 22 ) forming a protrusion extending from the periphery of the main part ( 23 ), the protruding part ( 22 ) including said hole ( 15 ). Also, a rotational guide device ( 10 ) including such a stone ( 1 ), and a horology movement including such a guide device ( 10 ).

A watch including a middle ( 1 ), a bezel ( 2 ) and a dial ( 3 ), the bezel being attached to the middle by a fastener, a screw. The dial ( 3 ) is held along its periphery between the middle and the bezel. An axial damping element ( 4 ) made of flexible material is arranged and partially compressed between the dial ( 3 ) and the bezel ( 2 ). The damping element can take the form of an O-ring, installed between a peripheral stop ( 13 ) on the inner wall of the bezel ( 2 ) and a peripheral portion ( 15 ) of the front face of the dial. The axial damping element ( 4 ) reduces the effect of frontal shocks on the watch, thereby reducing the risk of cracks or other damage to the dial. The fact that the dial ( 3 ) is held between the bezel and the middle makes it possible to incorporate the dial fastener into the external part of the watch.

An escapement mechanism ( 100 ) including an escapement wheel ( 1 ) with teeth ( 2 ) extending on either side of a median plane (PM) and including at least two teeth ( 2 ) each carrying at least one corner cut ( 20 ) connected to the impulse surface ( 4 ) on the tooth ( 2 ), the corner cuts ( 20 ) on two different teeth ( 2 ) each having a different geometric spatial orientation relative to the respective impulse surface ( 4 ) on the tooth ( 2 ) with this corner cut ( 20 ). Also, a timepiece, in particular a watch, including such an escapement mechanism ( 100 ).

A regulating member for a horological movement including an inertial mass, for example a balance, a balance spring, and an index-assembly system for adjusting the rate of the balance spring, the index-assembly system including a stud-holder including a first portion and a second portion, the first portion being movable relative to the second portion, wherein the regulating member includes locking device configured to block the second portion of the stud-holder in one position with respect to a plate of the movement.

A chronograph mechanism ( 10 ) for a horology movement ( 1 ) including a first counter wheel ( 21 ) secured to a first zero reset organ ( 51 ), a second counter wheel ( 22 ) secured to a second zero reset organ ( 52 ), not coplanar, the chronograph mechanism ( 10 ) including a zero reset mechanism ( 100 ) including: a first hammer ( 110 ) and a second hammer ( 120 ) configured on two levels; the first hammer ( 110 ) and the second hammer ( 120 ) pivoting separately relative to each other; a resilient coupling organ ( 116 ), arranged between the first hammer ( 110 ) and the second hammer ( 120 ), having a first bracket ( 116 . 1 ) bearing on a first support organ ( 111 ) on the first hammer ( 110 ) and a second bracket ( 116 . 2 ) bearing on a second support organ ( 112 ) on the second hammer ( 120 ) to elastically restrain the second hammer ( 120 ) against a support surface ( 118 ) on the first hammer ( 110 ).

A chronograph mechanism ( 10 ) for a horology movement ( 1 ) including a zero reset mechanism ( 100 ) including: a first hammer ( 110 ) and a second hammer ( 120 ) configured on two levels to respectively engage with non-coplanar zero reset organs ( 51 , 52 ); the first hammer ( 110 ) and the second hammer ( 120 ) being rotationally coupled by a resilient coupling organ ( 116 ) arranged between the first hammer ( 110 ) and the second hammer ( 120 ).

A navigation system ( 1 ) configured to guide a user along an itinerary leading to a determined geographic location, the system ( 1 ) including a watch ( 2 ) and a wireless electronic geolocation device ( 3 ) capable of generating guidance data relating to the itinerary, the watch ( 2 ) including an electronic horology movement ( 4 ) and a display interface ( 5 ) that alternately implements a mode for displaying horological information and a mode for displaying guidance information resulting from the guidance data using at least a first hand ( 7 a ) and a second hand ( 7 b ) included in the interface ( 5 ), the guidance information relating to indications of a set direction to be followed to reach the geographic location and to an estimated travel time to the next change of direction.

A pallet ( 21 ) for a horology escapement mechanism ( 50 ) with a Swiss pallet, the pallet ( 21 ) including a fork ( 22 ) designed to engage with an ellipse ( 23 ) on a balance ( 35 ), an entry arm ( 11 ) and an exit arm ( 12 ) designed to engage with an escapement mobile ( 30 ), the entry arm ( 11 ) and the exit arm ( 12 ) each comprising a pallet stone ( 25 , 26 ), the pallet stone ( 25 ) on the entry arm ( 11 ) and/or the pallet stone ( 26 ) on the exit arm ( 12 ) including a lateral wall ( 27 , 28 ) located on the side opposite to the lock plane, the lateral wall ( 27 , 28 ) having a portion ( 29 , 33 ) curving towards the inside of the pallet stone ( 25 , 26 ).

A horology mobile ( 20, 30 ), in particular for an escapement mechanism ( 50 ), the mobile ( 20, 30 ) including a central hub ( 2 ) and a circular peripheral toothing ( 14 ), the hub ( 2 ) being arranged inside the peripheral toothing ( 14 ), substantially in the same main plane, the mobile ( 20, 30 ) including a first series of blades ( 5, 15 ) connecting the hub ( 2 ) to the peripheral toothing ( 4 ), the blades ( 5, 15 ) being distributed around the hub ( 2 ) in the main plane, in which the blades ( 5, 15 ) are arranged substantially tangentially to the circumference of the hub ( 2 ), the direction of the blades ( 5 ) forming an angle comprised between −20° and +20° with the tangent to the hub ( 2 ), preferably between −10° and +10°, or even between −5° and +5°.

A pallet ( 21 ) for a horology escapement mechanism ( 50 ), the pallet ( 21 ) including a fork ( 22 ) designed to engage with an ellipse ( 23 ) on a balance ( 35 ), an entry arm ( 11 ) and an exit arm ( 12 ) designed to engage with an escapement mobile ( 30 ), as well as an arbor ( 5 ) on which the fork ( 22 ), the entry arm ( 11 ) and the exit arm ( 12 ) are fitted, the fork ( 22 ), the entry arm ( 11 ) and the exit arm ( 12 ) being arranged on the arbor ( 5 ) in two separate parts, the fork ( 22 ) being arranged on a first level and the entry arm ( 11 ) and exit arm ( 12 ) being arranged on a second level of the arbor ( 5 ), the two levels being separated along the axis of the arbor ( 5 ) by a predetermined distance (D 0 ).