Abstract: Movement for chronograph watch comprising: a barrel (1); a main gear train (RH) for driving one or more current time indicators (43); a regulator member comprising a generator (8) driven by the main gear train (RH), the generator powering an electronic regulation circuit (80) to control the speed of rotation of the main gear train as a function of a quartz oscillator (81); a chronograph gear train (Rc) that can be brought into mesh with the main gear train (RH) to drive a timer indicator (152). The chronograph gear train can be brought into mesh with a wheel (8) that performs more than one revolution per minute.

Abstract: Rotary bezel device (11L) for a timepiece (110), the device comprising a first rotary ring (B1), a second rotary ring (B2) and a first mechanical-connection element (C1) allowing the first rotary ring and the second rotary ring to be kinematically connected.

Abstract: The invention relates to a timepiece movement including a resonator formed by the cooperation of a balance with a balance spring, said resonator being pivotally mounted between a bar and another part such as a bar or a main plate. According to the invention, the timepiece movement further includes a device preventing adhesion of said balance spring against said bar including a surface decreasing means formed on the bar for limiting the contact surface when the faces of said balance spring and of said bar touch each other.

Abstract: Wristwatch including a case in or on which there is arranged a first open housing, a wristlet provided with one end arranged in the first open housing, and a fastening means for holding the end of the wristlet in the first housing. The fastening means includes a second housing opening onto the first housing and a fastening element arranged in the second housing and occupying one part of the first housing. The wristwatch further contains a means of retaining the fastening element.

Abstract: A watch includes a mechanical timepiece movement that includes at least one timepiece display device including a mobile timepiece component. The component transmits and diffuses light emitted by at least one light energy source included in the display device. The component is formed of a first material which is silica, or quartz, or single crystal quartz, or glass, or sapphire, or ceramic or material partially transparent to visible or ultraviolet wavelengths, or a transparent or translucent at least partially amorphous material, and of at least a second phosphorescent or fluorescent material applied in a thin layer to at least one of surfaces of the component. The light source, which is active or passive, injects light into one portion of the component which conveys and diffuses the light over at least one portion of the component, or throughout an entirety of the component, to make the component visible in the dark.

Abstract: The invention relates to a watch with a rigid casing-up, comprising: a middle (1); a bottom (2); a movement (3, 3bis, 3ter, 3quater, 41); and a casing-up ring (4, 4bis, 4ter, 42) in contact with the middle (1). The casing-up ring (4, 4bis, 4ter, 42) has an inner peripheral face (8, 17) and the movement (3, 3bis, 3ter, 3quater, 41) is secured to an outer peripheral face (7, 13, 18, 18bis), said inner (8, 17) and outer (7, 13, 1, 18bis) peripheral faces being in contact with each other in the Z and Z? regions thereof. Said watch is characterized in that it also comprises a tightening element (5, 5bis) provided for exerting pressure on the casing-up ring (4, 4bis, 4ter, 42) or the movement (3quater). The invention also relates to a method for casing-up such a watch.

Abstract: An electronic timepiece includes a display section, a display control section, a reception section, a clock section, a timing section, a leap second acquisition section, a time correction section that corrects internal time information by using time information acquired by the timing section, and a leap second correction section that corrects the internal time information by using leap second information acquired by the leap second acquisition section. In a case where the operation of the timing section is followed by the operation of the leap second acquisition section, the time correction section corrects the internal time information by using the time information acquired by the timing section, and the display control section causes the display section to display, before the leap second acquisition section acquires the leap second information, time based on the internal time information corrected by the time correction section.

Abstract: With conventional timepieces, information about target physical quantities, target achievement, and time has been indicated using separate displays, thereby making it difficult for users to instantly understand whether or not a target has been achieved.

Abstract: A method of controlling an alarm with a more improved alarm function and an electronic device supporting the same are provided. The method of controlling an alarm includes determining sleep start time information and alarm start time information, calculating a sleep time based on the sleep start time information and the alarm start time information, and outputting an alarm having a different characteristic according to a length of the calculated sleep time.

Abstract: A timepiece hand for abrupt acceleration is mounted to pivot around a staff so as to be able to indicate an item of information. The hand is made from an at least partially amorphous metal alloy.

Abstract: A timepiece movement driving at least one output arbor for receiving an indicator displaying a physical or temporal magnitude facing and above a complementary indicator or a dial, the complementary indicator or dial being arranged on a local reference or bearing surface included locally in the movement about of each the output arbor of the movement, or being arranged on the local reference or bearing surface. The output arbor includes, on a side of a local reference or bearing surface thereof, a free end which is either recessed or flush with respect to the local reference or bearing surface thereof.

Abstract: A mainspring including a metallic strip wound on itself. The mainspring includes an excess thickness forming a bridle in one-piece with the strip.

Abstract: An electronic timepiece has a dial; a dial ring disposed around the outside circumference of the dial; and an index marker affixed to the dial ring. The dial ring has a protruding part that protrudes to the inside in the radial direction of the dial ring; and the index marker is disposed to the protruding part. The annular member is made of plastic, and the index marker is made of metal.

Abstract: An instrument for counting duration for differentiated phases, including: plural mechanisms for recording a time duration, each actuatable, for activation and deactivation thereof, by a first controller; a general controller for controlling, from an inactive position in which all the recording mechanisms are deactivated, activation of only one of them, selected by a selector, and for again controlling, at a final moment, deactivation of all the recording mechanisms; a switch configured, during a command for activation of one of the recording mechanisms, to trigger the deactivation of all other recording mechanisms and to save totality of the recorded times, counted on each of the recording mechanisms. The selector is configured to be controlled by a user or/and by a measuring mechanism or/and by a signal to trigger the activation of one of the recording mechanisms.

Abstract: A method of improving the pivoting of a wheel set for a scientific instrument, including an arbor pivoting or oscillating about a wheel set axis, is provided. A static balancing of this wheel set is performed to bring the center of gravity onto this axis. A desired value is determined for the resulting unbalance moment of this wheel set about this axis, corresponding to a predetermined desired divergence between a first principal longitudinal axis of inertia of this wheel set, and this axis. This wheel set is set in rotation at a predetermined speed about this wheel set axis, and the resulting unbalance moment is measured with regard to this axis. An adjustment is made to the value of the resulting unbalance moment of this wheel set about this axis within a given determined tolerance with regard to this desired value.

Abstract: An assembly to hold a balance spring includes a balance spring stud, and a stud-holder. The stud-holder includes a housing to receive the stud, a mechanism to secure the stud including a screw orthogonal to the stud, and a mechanism to secure the stud-holder to an escapement mechanism. The stud includes a surface to orient a balance spring. The screw partially passes through the stud to hold the stud in an indexed position. The stud includes an internal thread cooperating with the screw and forming the orientation surface. The stud-holder includes a bore for the passage of the screw, a bearing face arranged at the entry of said bore, on the opposite side to the housing, for the abutment of a head of the screw.

Abstract: A multi-purpose tool watch comprising, a wristband housing having a bottom surface, an outer edge and a sidewall that extends upwards from said bottom surface outer edge, said sidewall having an inner surface, a watch body having a boundary edge and top and bottom surfaces, a watch face, and the bottom surface, a tubular member, a flange. The tubular member of the tool watch is mounted to the watch body boundary edge, wherein the flange interacts with the wristband housing to lock and unlock the tubular member to the housing. Tool members have a configuration to be moved from a stored position to an extended position for use, and wherein the tool members in a stored position are located between said tubular member outer surface and said sidewall of the wristband housing when said watch body bottom surface is adjacent said wristband housing bottom surface.

Abstract: This timepiece includes a movement with a diameter of less than 40 mm which comprises a barrel (1) for the housing of a mainspring and of which the diameter is less than the radius of said movement. The barrel (1) comprises a cylindrical lateral wall (2), surrounded by a tooth gear (3), of which each edge (21, 21?) is closed by a disk (4, 4?) traversed axially by an opening (5, 5?) for pivoting of a barrel arbor (7). The height of the housing is between 85% and 97% of the total height of the periphery of the barrel (1).

Abstract: An assembly for holding a balance spring includes a stud including a surface for orienting a balance spring, and a stud-holder. The stud-holder includes a first housing for receiving the balance spring stud, a mechanism to secure the stud including a screw orthogonal to the stud, and a mechanism to secure the stud-holder to an escapement mechanism. The screw partially passes through the stud to hold the stud in an indexed position. The stud includes a second housing for the contact-free passage of the screw. The stud-holder includes on either side of the first housing an internal thread cooperating with the screw and a third bore for the passage of a head of the screw cooperating in abutment with the orientation surface.

Abstract: A timepiece wheel set with a unidirectional wheel including an arbor carrying a pinion and at least a first wheel that is coaxial with the pinion and pivotally mounted on the arbor. The first wheel is connected to the arbor by a first spring, which exerts a friction force on the first wheel. The wheel set also includes a second wheel pivotally mounted on the arbor, and connected to the arbor by a second spring, which exert a friction force on the second wheel.