Abstract:
A watch case having a locking system for at least one control element of a timepiece, the locking system including a manipulable element, a locking element for the at least one control element, and a kinematic link linking the manipulable element to the locking element, the locking system being arranged on the outside of a chamber (63), more particularly on the outside of a water-resistant chamber, defined by the case, the locking element being rotatably mounted, more particularly rotatably mounted about a second axis (A1) of the at least one control element.
Abstract:
A timepiece calendar system (100) including: —a date mobile (1); —a first device (3) for indexing the position of the date mobile; —a second device (4) for indexing the position of the date mobile; —an element (70, 3b, 4b, 40) for activating and deactivating at least one of the first and second indexing devices, the indexing of the date mobile by one or the other of the first and second indexing devices being mutually exclusive.
Abstract:
A method for treating a surface (2) of a base (1) of a timepiece component (10), in particular a balance spring, e.g. a balance spring made of a paramagnetic NbZr alloy, includes: a first step of depositing a first layer (41) of a first oxide or first nitride or first carbide; and a second step of depositing a second layer (51) of a second oxide or second nitride or second carbide.
Abstract:
Drive device (100), notably for a horology calendar system (200), the drive device comprising a drive mobile (10) for driving an element (4) that is to be driven, notably a calendar element, the drive mobile being intended to be mounted so that it can rotate about an axis (A1) and comprising (a) a support (11); (b) a first flank (f11) for driving the element that is to be driven; and (c) a second flank (f12′) arranged in such a way as to receive an action to retract the drive mobile, notably extending orthoradially or substantially orthoradially with respect to the axis (A1); the mobile comprising a slide link (111, 121; 11, 120; 110, 120′) connecting the second flank to the support.
Abstract:
A component of a winding device, in particular an automatic winding device, of a timepiece movement, wherein it is made of austenitic stainless steel and wherein it comprises at least one friction surface hardened by carbon or nitrogen type atoms introduced into the austenitic stainless steel over a predetermined depth.
Abstract:
A timepiece shaft (1), especially a balance shaft (1), comprising a first functional portion (2a; 2b) including at least one part (221a, 221b) of a pivot-shank (22a; 22b) and/or at least one part (211a, 211b) of a pivot (21a, 21b), the first functional portion being made of ceramic and a first outer diameter (D1) of the first functional portion being less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm
Abstract:
The invention relates to a barrel spring (2) including: an inner end (5) and an outer end; a first portion (50) having a first height (H); a second portion (52) having a second height (h) that is smaller than the first height (H) and being located near the inner end (5); and, at the second portion, e.g. at the inner end, a first attachment element (51) suitable for being attached to the barrel shaft, wherein the second portion is to be inserted into a circumferentially extending groove provided on the barrel shaft.
Abstract:
A mechanism (3) for indicating and storing time information, the mechanism including a member (H) for displaying the hours, and/or a member (M) for displaying the minutes, and/or a member (S) for displaying the seconds, and a member (H′) for displaying the stored hours, and/or a member (M′) for displaying the stored minutes, and a member (S′) for displaying the stored seconds.
Abstract:
Clock movement (2) comprising a mechanism (3) for indicating and storing the time information, the mechanism comprising a member (S′) for displaying the stored seconds and/or stored fractions of seconds, a first device (MEM1) for storing seconds and/or fractions of seconds, the storage device comprising a first storage mobile (M1) provided with a first storage element (MC1) in direct mesh with an element (12) of a geartrain (11, 12, 13, 14, 15) of the clock movement or a first storage element fixed to an element of a geartrain of the clock movement.
Abstract:
A barrel for timepiece movement, comprising a barrel shaft (20) around which is arranged, in a rotationally mobile manner, an assembly comprising a drum (30) and a cover (40) delimiting a housing (50) for receiving a barrel spring (51), the drum (30) and the cover (40) each having a wall (31, 41) extending from a peripheral end (34, 44) of the barrel to a central end of the barrel at the level of the barrel shaft (20), wherein at least a part of at least one of said walls (31, 41) has a variable thickness which increases continually with distance away from the peripheral end of the barrel.