Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.

Abstract: A stop watch (1) includes a time indicator comprising a hand (2), a first scale (31) and a second scale (41). A first part of a time indication is shown by the hand (2) on the first scale (31) and a second part of said time indication is shown by said second scale (41) in combination with said first scale (31). The first scale (31) is fixed and said second scale (41) is movably mounted around said first scale (31). The first part of said time indication corresponds to seconds of a duration counted by said stop watch (1), and the second part of said time indication corresponds to tenths of seconds of said duration.

Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.

Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.

Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.

Abstract: Wristlet clasp allowing the wristlet length to be finely adjusted. A wheel accessible through an opening in the cover can be made to rotate to screw or unscrew a threaded rod so as to move an end of the wristlet relative to the cover.

Abstract: A device comprises a basic clock movement MB whose time indicators are driven by a first barrel connected to a first wheelwork and a first regulator organ, and an autonomous chronograph module MCA whose indicators are driven by a second barrel independent from the first, connected to a second wheelwork and a second regulator organ. The chronograph module is exclusively composed of mechanical elements. The frequency of oscillation supplied by its regulator is equal N times the frequency of oscillation supplied by the regulator of the base movement, with the coefficient N being definable according to a specific application of the chronograph, so that any chronograph module thus previously defined can work with the same base movement. The chronograph regulator remains constantly engaged with the corresponding wheelwork. The chronograph module allows a time interval to be read with a minimum precision of a hundredth of second.

Abstract: Watch provided with a multifunctional aperture display capable of displaying symbols corresponding to one or several special functions and to the date. The movement of the display discs is ensure by bidirectional motors and the display discs or mobiles have several series of digits of different colour for differentiating the display of the different functions.

Abstract: A timepiece equipped with an alarm mechanism having a striking device and a minute repeater mechanism provided with a striking device. The two striking devices share at least one gong and one hammer. A power source can be locked when the mechanism is at rest and unlocked when the mechanism is in operation. An adjustment system can be used to program the alarm time. A trigger system includes a control member which controls the unlocking of the power source and a cam which is kinematically connected to the movement and performs one revolution every 24 hours. A first striking mechanism is equipped with at least one hammer arranged to strike at least one gong, and a supplemental striking mechanism is equipped with at least one hammer arranged to strike at least one non-resonant object, wherein the power source drives one or the other of these striking mechanisms.

Abstract: An arrangement for protecting a watch movement from shocks and vibrations comprises shock absorbers (2) for mounting the watch movement within the case (10). The shock absorber comprises a plurality of independent portions (21, 22) adapted for absorbing the energy from shocks and vibrations in different portions of the frequency spectrum. The rigidity of the shocks absorbers can be adjusted from outside the watch. The watch case is made up of a network of interconnected tubes and watertightening plates without mechanical functions connected to the tubes.

Abstract: For a timepiece movement, a striking train mechanism having: at least one resonant element (32) which can emit at least two sounds of different frequencies, at least two pallets (36), and at least two hammers (34) which are designed to be driven by the pallets (36) in order to strike the resonant element (32).

Abstract: Clasp with unfolding buckle for wristlet, having: an inside blade (3), two outside blades (1) forming an articulated shank with the inside blade, two push-pieces (7) capable of being actuated transversely against the action of an elastic element (9) for unlocking the clasp, at least one stopping (11) connected removably to said push-piece (7) for limiting the amplitude of displacement of said push-piece along at least one axis.

Abstract: A timepiece with an alarm mechanism having: a power source (24) which is locked when the mechanism is at rest and unlocked when the mechanism is in operation; an adjustment system which can be used to program the alarm time; and a trigger system that includes a control member (16) which controls the unlocking of the power source and a cam (10) which is kinematically connected to the movement and performs one revolution every 24 hours. The alarm mechanism also has a first striking train mechanism equipped with at least one hammer (54) arranged to strike at least one gong (56), and a second striking train mechanism equipped with at least one hammer (70) arranged to strike at least one non-resonant object (72), wherein the power source (24) drives one or the other of the striking train mechanisms.

Abstract: Method for switching the time zone indicated by a timepiece (1) in order to switch from an initial time zone to a modified time zone, having the following steps: the user enters a time switch command (268) by means of the crown, the hours' and minutes' hands indicate the time of the modified time zone (274), whilst the seconds' hand indicates a city corresponding to the selected time zone, the timepiece automatically returns (280) to the initial time zone and indicates the time of the initial time zone (202), or the time of the modified time zone is retained by means of a command from the user.