The invention relates to a removable fitting frame (10) suitable for being removably mounted on an optical monitoring device, particularly a motorised monitoring device, for inspecting components (100, 102, 104, 106, 108). The fitting frame (10) comprises a rigid cage (10a), a component holder (22; 24; 26; 34; 40) mounted inside the rigid cage (10a), and at least one rotating part (44a, 44b) serving as an interface between the rigid cage (10a) and at least one rotating element (68a, 68b) of the monitoring device or between the rigid cage (10a) and an intermediate element (64a, 64b) mounted on the rotating element (68a, 68b) when the fitting frame (10) is mounted on the monitoring device, so as to use the torque generated by the monitoring device during the inspection of the component (100, 102, 104, 106, 108) in order to enable the rotation of said rigid cage (10a) and/or of said rotating part (44a, 44b) about an axis of rotation coaxial with the axis of rotation of said at least one rotating element (68a, 68b).

A device that tests the chronometric precision of a watch movement or a watch includes a control device controlling a predefined cycle of motions passing through standard chronometric test positions, and a fine control device including a sequencer arranged to control the changes of chronometric test position of this movement, or respectively of this watch, in a multi-position sequence, after each measurement per position, and to start another multi-position sequence as soon as the preceding sequence finishes and which observes the predefined total duration of one cycle of several successive multi-position sequences. This sequencer is also arranged to manage the rate stabilisation durations, durations of measurement per position, and multi-position sequence durations.

A method for adjusting a timepiece including: providing a portable object including a screen and a camera; testing accuracy of a piece of time information of the timepiece by using the camera of the portable object to compare with a piece of time information obtained from an external source; sending the time information from the portable object to the timepiece if a difference is detected, the timepiece including at least one phototransistor arranged at a case for receiving the time information, the timepiece to display the correct time information, the sending including: defining on the screen of the portable object an area of shape and dimensions similar to the case of the timepiece; holding the case of the timepiece against the area; sequentially displaying black or white in the area, in a sequence of black and white corresponding to a luminous coding of the time information.

A method to manufacture a hairspring of a timepiece movement, which includes: producing a malleable elongated element in a form of under a fiber or ribbon form, from a first heated material capable of guiding light; conforming the malleable elongated element in order to achieve into a spiral form; and handling processing the spiral form thus created in order to obtain a hairspring for providing both a mechanical oscillating function in a balance wheel and a light guiding guide lighting function arranged for in situ adjusting of a mechanical performance of said hairspring. The conforming includes coiling the malleable elongated element around a rotating mobile conformation tool, and receiving the malleable elongated element in a guiding channel within a guiding mechanism and guiding the received malleable elongated element via mobile equipment turning on an inner periphery of the guiding mechanism.

Method of measuring at least one dimension (L) of an object (1) having a first axis (2), the method including the use of a first optical system (11) including an optical sensor (111) and having a second optical axis (113), the measuring method including (i) obtaining at least one series of data from the optical sensor when the object is in movement relative to the first optical system, notably an angular movement of the first axis relative to the second axis and/or a movement of the object in rotation about the first axis and/or a movement of the object in translation along the second axis and (ii) processing the at least one series of data to quantify said at least one dimension.

Winding device (1000) including motorisation means (2) driving a watch holder (1) carrying at least one automatic watch (100) with a movable oscillating mass, and measuring means (3) measuring the amplitude of the resonator of each watch (100), and watch (100) identification means (300), providing the identification of a particular watch (100) to control means (200) including an internal database (400) with the history of the amplitude measurements of the resonator of this particular watch (100) and/or the value of its nominal amplitude, and/or communication means (500) communicating with an external database (600) for extracting these values.

A machine tool for machining a piece has an axis of rotation A, and includes a no-force precision machining unit to machine the piece, a first spindle, a first clamping device clamping the piece and mounting it on the first spindle, and a machine parameters guidance system. The guidance system guides a controller for the machining unit to control a first machining phase of the piece on the first spindle programmed to obtain a blank mounted on the first spindle, with target dimensions are 0.5% to 20% greater than the final dimensions, then to modify the machining parameters to control, starting from the blank on the first spindle, a second machining phase to remove a quantity of material to obtain the finished piece, with the final dimensions and a roughness of less than 40 nm. A method for machining a piece using such a machine tool is also described.

An information display method includes recognizing an electronic timepiece included as an imaged subject in an image, and an indicating element that indicates information in the electronic timepiece, receiving data relating to information indicated by the electronic timepiece from the electronic timepiece, associating information extracted from the data with the indicating element, based on specification information of the electronic timepiece, and displaying an annotation image relating to the information extracted from the data in association with the indicating element, along with the image.

An electronic timepiece includes a plurality of hands; a plurality of detection units that detect external light, arranged corresponding to the plurality of hands; and a control unit, wherein the control unit is configured to perform external light detection operations that respectively determine whether or not external light of a threshold value or more is detected at the plurality of detection units while moving the plurality of hands by a predetermined distance, respectively, and when there is a hand among the plurality of hands for which the external light detection operation detected external light and there is another hand among the plurality of hands for which the external light detection operation did not detect external light, perform the external light detection operation for said another hand again.

An assembly (1) for measuring a relative humidity level inside a watch (2), comprising the watch (2) and a device (4) for determining the humidity level present in the enclosure (9) of a case (3) of this watch (2), the determination device (4) comprising a free space optical system and a control unit (7). The system includes: an emitter module (5) for emitting at least one light beam (8); and a receiver module (6) for receiving the at least one light beam (8); the control unit (7) being connected to the modules (5, 6) and the at least one light beam (8) emitted by the emitter module (5) defining an optical path partly comprised in the case (3) and extending as far as the receiver module (6) and the control unit (7) being configured to evaluate the absorption of the light beam (8) by the water vapour capable of being present inside the enclosure (9) of the case (3).