EP3226082B1 - Komponente eines uhrwerks - Google Patents

Komponente eines uhrwerks Download PDF

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Publication number
EP3226082B1
EP3226082B1 EP17164652.4A EP17164652A EP3226082B1 EP 3226082 B1 EP3226082 B1 EP 3226082B1 EP 17164652 A EP17164652 A EP 17164652A EP 3226082 B1 EP3226082 B1 EP 3226082B1
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EP
European Patent Office
Prior art keywords
vitroceramic
component
timepiece movement
movement component
glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17164652.4A
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English (en)
French (fr)
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EP3226082A1 (de
Inventor
Nicolas Yoakim
Gregory Bruttin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Richemont International SA
Original Assignee
Richemont International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP3226082A1 publication Critical patent/EP3226082A1/de
Application granted granted Critical
Publication of EP3226082B1 publication Critical patent/EP3226082B1/de
Active legal-status Critical Current
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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B29/00—Frameworks
    • G04B29/02—Plates; Bridges; Cocks
    • G04B29/027—Materials and manufacturing
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B13/00—Gearwork
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B15/00—Escapements
    • G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/28—Compensation of mechanisms for stabilising frequency for the effect of unbalance of the weights, e.g. tourbillon
    • G04B17/285—Tourbillons or carrousels
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B19/00—Indicating the time by visual means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B21/00—Indicating the time by acoustic means
    • G04B21/02—Regular striking mechanisms giving the full hour, half hour or quarter hour
    • G04B21/06—Details of striking mechanisms, e.g. hammer, fan governor
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B23/00—Arrangements producing acoustic signals at preselected times
    • G04B23/02—Alarm clocks
    • G04B23/06—Alarm clocks adjustable for several preselected times with automatic stopping of the signal
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B5/00—Automatic winding up
    • G04B5/02—Automatic winding up by self-winding caused by the movement of the watch
    • G04B5/16—Construction of the weights

Definitions

  • the present invention relates to a timepiece movement component.
  • watch movement components are made of metal alloys which often have disadvantages, in particular internal stresses following shaping operations, a tendency to oxidation, limited hardness for certain alloys which must be compensated for by treatments subsequent to the machining steps, a certain sensitivity to wear, tribological characteristics requiring the use of lubricants, a high density resulting in significant inertia of the moving parts, and in certain cases, a sensitivity to magnetic fields which can disrupt the functioning of a watch movement.
  • ceramics most often require sintering and firing operations with an anisotropic withdrawal of the material. These methods also further limit the additional operations brought to the material, such as subsequent decoration or machining operations, these being only possible with specific tools, due in particular to the hardness and the brittleness of the material. material.
  • DRIE etching deep etching
  • the components produced in this family of materials have a certain brittleness and are brittle. Their assembly with other components also require special measures. Indeed, conventional assemblies such as driving or screwing are difficult to apply to components made of such materials.
  • glasses have seen their use spread following the development of hybrid production technologies, often involving the exposure of the material to a light wavelength and the etching of this irradiated area in an appropriate environment.
  • standard glasses like “fused silicate” (or quartz glass) or borosilicate, in the case of etching by exposure to a femtosecond laser.
  • the exposure and chemical attack times, the equipment required as well as the geometries that can be achieved to date greatly limit the use of such technologies.
  • the document DE102006059274 discloses the manufacture of a glass ceramic watch component.
  • An object of the invention is to overcome, at least in part, these drawbacks and to produce a timepiece movement component obtained by conventional machining techniques and having advantageous mechanical properties.
  • watch components made of such materials are particularly difficult to decorate. Indeed, to be decorated, they require complicated treatments.
  • the decoration of such watch components is sometimes essential, especially when it comes to display components.
  • Another object of the invention is therefore to obtain a decorated timepiece component which is easy to manufacture, that is to say a timepiece component comprising a localized modification of some of its optical properties which is achievable using easily reproducible treatments.
  • the subject of the invention is a timepiece movement component according to claim 1 and a method of manufacturing a timepiece component according to claim 9.
  • the timepiece movement component according to the invention comprises a glass ceramic, said glass ceramic comprising a crystalline phase representing at least 50% by volume of said glass ceramic, the rest of the glass ceramic being a vitreous matrix, said crystalline phase being at least 50% mica type.
  • glass ceramic with mica structure is used to denote such a glass ceramic.
  • the vitroceramic of the timepiece movement component according to the invention further comprises at least one additional element conferring on at least one zone of the vitroceramic a color, shade or luminescence different from that of the rest of the vitroceramic.
  • the timepiece movement component according to the invention comprises at least two distinct glass-ceramic zones of different colors, shades or luminescence.
  • Said at least one zone of color, shade or luminescence different from that of the rest of the glass ceramic may advantageously be obtained by exposure or irradiation of at least part of the glass ceramic comprising said at least one additional element to a laser beam or by implantation localized of the at least one additional element, the additional element being or not previously loaded, depending on the case.
  • the timepiece movement component according to the invention is typically obtained by at least one step of mechanical machining by removing material from a substrate of said glass-ceramic.
  • at least 50% of these machining steps are mechanical machining steps by removing material, chosen for example from the following conventional mechanical machining techniques: turning, milling, polishing, satin finishing, mechanical engraving, drilling or cutting.
  • the glass ceramic preferably has a density of less than 3 g / cm 3 .
  • said at least one additional element comprises metal oxides such as zirconium oxide and / or aluminum oxide.
  • a movement component a watchmaker comprising such a glass ceramic comprises at least two zones with different shades. These differences in shade can be obtained under the effect of targeted exposure to a laser beam.
  • said at least one additional element comprises metal ions of one of the elements of the rare earth group, such as for example europium or erbium ions, of one of the elements of the transition metal group, for example example of yttrium ions or of an element from the group of poor metals, for example bismuth ions, the presence of such metal ions in the glass ceramic giving said at least one zone of the component a luminescence different from that of the rest of the component.
  • This difference in luminescence can be obtained under the effect of exposure of at least part of the glass ceramic comprising said at least one additional element to a laser beam or by ion implantation of the at least one additional element in charged form. .
  • a timepiece movement component comprising at least two zones with different luminescence can be obtained.
  • said at least one additional element comprises metallic elements such as gold or copper giving a different color to the component in the area in which they are present. These elements can typically be supplied to the glass-ceramic by ion implantation in said at least one zone.
  • the glass-ceramic of the timepiece component according to the invention can comprise zones of different colors or shades, these differences being obtained by selective diffusion of a tinting element in the glass-ceramic of the component.
  • a tinting element such as enamel can for example be used.
  • Other tinting agents can be used and diffused in the glass ceramic of the timepiece movement component according to the invention by increasing the temperature.
  • the timepiece movement component preferably comprises at least one cavity, which may be blind or through, hollowed out at least in part in the glass ceramic.
  • it comprises a second material filling at least partially said cavity.
  • Said second material is typically a paint, a lacquer, a material having a photoluminescence greater than that of glass-ceramic, a material based on metal, and / or any other material making it possible to provide an optical contrast with said glass-ceramic.
  • the timepiece movement component according to the invention can also comprise a coating in a third material, said coating covering at least part of the surface of the glass ceramic.
  • Said third material is typically a paint, a lacquer, a material having a photoluminescence greater than that of said glass-ceramic, a metal-based material and / or any other material making it possible to provide optical contrast with said glass-ceramic.
  • the metal-based material constituting the second and / or the third material preferably has a density greater than the density of the glass ceramic, is chosen from the family of precious metals and / or from the family of transition metals, and / or comprises at least one element chosen from a nitride, an oxide and / or a carbide of a metallic element.
  • said second and third materials are identical.
  • the timepiece movement component is typically an element constituting a draft of a movement, for example a plate, a bridge or an element of a tourbillon cage. It can also be a striking hammer, an oscillating mass rotor, a display member, a cam, in particular a reset core, a rocker, of a mobile in particular comprising at least one toothed sector, for example a toothed wheel, of a pivot or of an escapement member, said timepiece movement component being optionally openwork.
  • the openwork part is typically a skeleton-type structure.
  • the timepiece movement components according to the invention partially offer the properties of the non-metallic materials mentioned above by overcoming the production difficulties of the latter. They have in particular advantages of stability of the material, in particular the absence of the known internal stresses in metals, a density close to that of glass, a hardness higher than that of certain metals, a resistance to wear and tribological properties higher. In addition, hunting and assembly with other components are easier than with fragile materials such as ceramics and silicon.
  • a watch movement component 10, 20, 30, 40, 50 comprises a glass ceramic comprising a crystalline phase representing at least at least 50% by volume of said glass ceramic, the rest of the glass ceramic being a vitreous matrix, said crystalline phase being at least 50% of mica type.
  • the mica-type crystalline phases are at least partly in the form of lamellae.
  • the latter favor the machinability of glass ceramic with mica structure.
  • Said glass ceramic contains silicon dioxide and other elements, in part oxides, a non-limiting composition of the material further comprising the following elements: MgO, Al 2 O 3 , K 2 O, B 2 O 3 and F. Those these can be supplemented, partially or entirely replaced by other elements, chosen in particular from magnesium fluoride, strontium oxide, oxides of iron, chromium or other metallic elements. Certain elements such as copper or gold can advantageously modify the colors of the glass-ceramic.
  • glass ceramics with a mica structure do not require a sintering or firing step during their shaping to obtain the timepiece component according to the invention, and have the advantage of being able to be machined without specific tools.
  • a timepiece movement component according to the invention is produced by machining a glass-ceramic substrate with a mica structure. It is typically obtained by at least one mechanical machining step, by removing material. Preferably, at least 50% of the component machining steps are mechanical machining steps by removing material chosen, for example, from the following conventional mechanical machining techniques: turning, milling, polishing, satin finishing, mechanical engraving, drilling or cutting.
  • a glass-ceramic with a mica structure as defined above typically has a density of less than 3 g / cm 3 , which makes its use advantageous for the production of mobile elements, the inertia of the components then being greatly reduced. These properties are also particularly advantageous for mobiles, subjected to low torques or to strong accelerations, or for display discs.
  • the timepiece movement component according to the invention is typically chosen from all of the elements constituting a draft of a movement, for example a plate 20, a bridge or an element of a tourbillon cage. It may also be a striking hammer 40, an oscillating mass rotor 50, a display member 30, a cam, in particular a reset core, a rocker, a mobile in particular comprising at least one toothed sector, for example a toothed wheel 10, a pivot or an exhaust member. It is typically a display member 30, for example a display disc or a fixed member such as a dial or a member constituting a part of a dial.
  • the timepiece component according to the invention can undergo various treatments and take various forms.
  • the openwork parts can typically constitute the indications of a display component 30 with a skeleton-type effect 31, as illustrated in the figures 3a and 3g .
  • An advantage of using a ceramic glass with a mica structure compared to the metals traditionally used in watch movement components, comes from the absence or reduction of internal stresses after machining, which makes it possible, in particular in the case strongly perforated parts such as bridges or blanks called skeletons (plate 20), to guarantee high geometries and tolerances during assemblies, overcoming warping or other problems encountered in thin metallic structures.
  • the glass-ceramic with mica structure used comprises certain compounds such as, for example, metal oxides, such as zirconium oxide and / or aluminum oxide
  • its reflectance is liable to be modified, in particular under the effect of laser exposure or irradiation to pulses of specific frequency, duration and wavelength.
  • it is possible to change the shade of the material most often in tones ranging from white to black, passing through intermediate grays, in a selective and localized manner. This can for example be used to write indications 32 on a display component 30 as shown in Figures 3a and 3c .
  • the presence of certain other metallic elements in the glass-ceramic with mica structure used such as copper or gold makes it possible in addition to vary the tint of the whole of the glass-ceramic in certain color spectra.
  • these metallic elements are brought to the glass-ceramic in a localized manner, typically by ion implantation, they confer a variation in the color of the glass-ceramic only in the part or parts of the glass-ceramic in which they are present.
  • Such irradiation makes it possible to obtain luminescence by excitation of photons and thus to modify the luminescence properties of the exposed area.
  • This can for example be used to write indications 32 on a display component 30 as shown in Figures 3a and 3c .
  • Another possibility consists in introducing these ions previously charged to the laser by ion implantation. It is for example possible to implant Er 3+ ions in a glass-ceramic with mica structure based on SiO 2 or to implant Bi 3+ ions at different charge levels in a glass-ceramic with mica structure comprising Er or Y- elements er.
  • the timepiece movement component according to the invention advantageously comprises at least one cavity 33, 43, 53, blind or through, hollowed out at least in part in the glass-ceramic.
  • a cavity 33, 43, 53 may in particular take the form of indications hollowed out in the glass ceramic of a display component 30 as shown in FIGS. figures 3a and 3d to 3f or of any geometric shape in a striking hammer 40 or in an oscillating mass rotor 50.
  • This cavity 33, 43, 53 can advantageously be filled, at least in part, with a second material 34, 44, 54.
  • This second material can be a paint, a lacquer, a material having a photoluminescence greater than that of said glass-ceramic, a metal-based material and / or any other material making it possible to provide an optical contrast with said glass-ceramic.
  • hybrid components the structure of which is made of ceramic glass with a mica structure, therefore rigid and of controllable hardness, comprising at least one cavity 43, 53 filled with a metal of density typically higher than that of glass-ceramic with a mica structure, such as a precious metal, to increase its inertia.
  • One possibility concerning the filling of a cavity 33, 43, 53 consists in first producing a metallic coating 46, 56, partial or complete, of at least one surface of said cavity and then filling it with a technique of growth of a metallic layer with a material identical or different from that constituting said metallic coating.
  • Figures 4a and 4b illustrate a striking hammer 40 machined in a glass ceramic substrate with mica structure and metallized with a metallic material 46, said material 46 having typically been deposited in a cavity 43 hollowed out in glass ceramic with mica structure constituting, at least in part, said hammer buzzer 40.
  • the cavity 43 metallized with a metallic material 46 was then filled by a technique of growing a metallic layer from the coating produced initially, in the same material 44 or in another metallic material than that used for metallization.
  • Such a striking hammer 40 which is brought to shock a resonant body, has favorable hardness, wear and inertia properties, or even interesting acoustic properties, depending on the thickness of its glass-ceramic wall with mica structure. , due to the crystalline timbre of this material.
  • the Figures 5a and 5b illustrate an oscillating mass rotor 50 machined in a ceramic glass with mica structure, said glass ceramic having been hollowed out to form a cavity 53, said cavity being filled with a material 54, typically with a metal denser than glass ceramic with mica structure used, for example with gold, to weigh it down.
  • the filling of the cavity 53 is typically carried out by a technique of growing a metal layer 54 from the coating 56 produced first of all in a material different or identical to the material of the metal layer 54.
  • a surface coating can be produced on at least part of the glass-ceramic surface with mica structure of the timepiece movement component according to the invention, for example to represent indications 32 on a display component, as illustrated in the figure 3b .
  • timepiece component according to the invention comprises at least one cavity 33, 43, 53
  • a surface coating can also be produced, at least in part, inside said at least one cavity 33, 43, 53.
  • Such a surface coating may consist of a metallization of part of the glass-ceramic surface of the timepiece movement component according to the invention.
  • Said metallization can be carried out by various known methods, for example, but without being limiting, by PVD or CVD. It can be used to promote the bonding of a glass-ceramic surface with mica structure of the timepiece movement component to another metallic or metallized element of the timepiece movement component or movement, by welding, soldering, pressing or by any other method carrying out the same connecting function between two metallic or metallized elements.
  • the material of the surface coating is typically chosen from materials comprising at least one metallic element, said metallic element having a density greater than the density of the glass ceramic and / or being chosen from the family of precious metals.
  • a surface coating with a metal or a metalloid can typically be completed by a step leading to an oxide, a nitride and / or a carbide of this element.
  • This can be advantageous, for example, to reinforce a surface of the component subjected to high friction and / or wear stresses, where the slip must be maximized or else a surface which must cooperate with another surface without liquid lubrication or with conditions. specific lubrication.
  • Such components may include pivots, cogs, exhaust components or any other component subjected to such actions.
  • a pivot can be produced in a monolithic manner in the ceramic glass with mica structure with the mobile which contains it, the surface of the pivot undergoing the stresses which can then be subjected to this process reinforcing its tribological properties.
  • timepiece movement components according to the invention are advantageously subjected to finishing or decoration treatments including in particular steps such as chamfering or engraving.
  • timepiece components according to the invention have numerous advantages. They are in particular easily achievable, mainly by mechanical machining in a glass-ceramic with mica structure, without requiring sintering or firing operations to obtain the timepiece component and without anisotropic withdrawal of the material. It will also be noted that the timepiece movement component according to the invention also comprises at least one zone of its vitroceramic with mica structure of color, shade or luminescence different from that of the rest of its vitroceramic, this zone typically showing indications or patterns constituting decorations on the surface of the component.
  • a watch movement component decorated according to the invention can be obtained by localized modification of some of its optical properties using easily reproducible treatments and without adding any additional thickness to the component.
  • the watch movement components according to the invention also have a relatively low density making it possible to reduce their inertia with respect to the metal watch movement components. They can also be perforated for example in the form of skeleton-type structures, while guaranteeing high geometries and tolerances during assemblies, eliminating the problems of warping or other encountered in thin metallic structures. In addition, they can be coated with a layer of a second material, typically metallic or photoluminescent for purposes such as improving tribological or joining properties with other components or for decorative purposes.

Claims (9)

  1. Uhrwerks-Komponente (10, 20, 30, 40, 50), umfassend eine Glaskeramik, umfassend eine kristalline Phase, die mindestens 50 Vol.-% der Glaskeramik darstellt, wobei der Rest der Glaskeramik eine Glasmatrix ist, wobei die kristalline Phase zu mindestens 50 % vom Glimmer-Typ ist, wobei die Glaskeramik mindestens ein zusätzliches Element umfasst, das mindestens einem Bereich der Glaskeramik eine Farbe, eine Nuance oder eine Lumineszenz verleiht, die sich von jener der restlichen Glaskeramik unterscheidet, dadurch gekennzeichnet, dass dieser Bereich Angaben oder Muster definiert, die Dekorationen der Oberfläche der Komponente bilden, und dadurch, dass das mindestens eine zusätzliche Element umfasst:
    (a) ein metallisches Element, das aus Gold und Kupfer ausgewählt ist und das dem mindestens einen Bereich eine Farbe verleiht, die sich von jener der restlichen Komponente unterscheidet, oder
    (b) ein Metalloxid wie Aluminiumoxid oder Zirkoniumoxid, wobei sich die Nuance des mindestens einen Bereichs von jener der restlichen Komponente unterscheidet, oder
    (c) Metallionen eines der Elemente aus der Gruppe der Seltenen Erden, beispielsweise Europium- oder Erbium-Ionen, eines der Elemente aus der Gruppe der Übergangsmetalle, beispielsweise Yttrium-Ionen, oder eines der Elemente aus der Gruppe der Post-übergangsmetalle, beispielsweise Wismutionen, wobei sich die Lumineszenz des mindestens einen Bereichs von jener der restlichen Komponente unterscheidet.
  2. Uhrwerks-Komponente nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ferner mindestens einen Hohlraum (33, 43, 53), der mindestens teilweise aus der Glaskeramik ausgehöhlt ist, und mindestens ein zweites Material (34, 44, 54) aufweist, das den Hohlraum (33, 43, 53) mindestens teilweise ausfüllt.
  3. Uhrwerks-Komponente nach Anspruch 2, dadurch gekennzeichnet, dass das zweite Material (34, 44, 54) ein Material auf Metallbasis ist, das eine Dichte aufweist, die höher als die Dichte des Glaskeramikmaterials ist.
  4. Uhrwerks-Komponente nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es sich um ein Element handelt, das eine Platine (20), eine Brücke oder ein Element eines Tourbillonkäfigs, einen Schlaghammer (40), einen Rotor mit Schwungmasse (50), ein Anzeigeorgan (30), einen Nocken, insbesondere ein Rückstellherz, eine Wippe, ein bewegliches Element, das insbesondere mindestens einen gezahnten Sektor aufweist, beispielsweise ein Zahnrad (10), einen Zapfen oder ein Hemmelement bildet.
  5. Uhrwerks-Komponente nach Anspruch 1, dadurch gekennzeichnet, dass es sich um ein Anzeigeorgan (30) handelt, beispielsweise um eine Anzeigescheibe oder um ein festes Organ wie ein Zifferblatt oder ein Organ, das einen Teil eines Zifferblatts bildet.
  6. Uhrwerks-Komponente nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie durchbrochen ist.
  7. Uhrwerks-Komponente, dadurch gekennzeichnet, dass sie eine erste Komponente aus Glaskeramik nach einem der vorhergehenden Ansprüche aufweist, die an mindestens einem zweiten Element angebracht ist, das aus einem anderen Material hergestellt ist.
  8. Zeitmessgerät, umfassend eine Uhrwerks-Komponente nach einem der vorhergehenden Ansprüche.
  9. Verfahren zur Herstellung einer Uhrwerks-Komponente (10, 20, 30, 40, 50) nach Anspruch 1, Option (b) oder (c), dadurch gekennzeichnet, dass es einen Belichtungsschritt mit einem Laserstrahl von mindestens einem Teil der Glaskeramik, der das mindestens eine zusätzliche Element umfasst, aufweist, der dem mindestens einen Bereich der Glaskeramik, eine Nuance oder eine Lumineszenz verleiht, die sich von jener der restlichen Glaskeramik unterscheidet.
EP17164652.4A 2016-04-01 2017-04-03 Komponente eines uhrwerks Active EP3226082B1 (de)

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CN109270818A (zh) * 2018-11-07 2019-01-25 精时拓飞（深圳）科技有限公司 一种微型机械的自动供能模块

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Publication number Priority date Publication date Assignee Title
GB1398315A (en) * 1972-08-15 1975-06-18 Dassortiments Reunies Fab Method for manufacturing dials for watches and dials for watches manufactured according to said method
DE102006059274A1 (de) * 2006-12-13 2008-06-26 Stein, Ralf Verfahren zur Herstellung eines Bauteils für das Werk einer mechanischen Uhr
DE212015000206U1 (de) * 2014-08-27 2017-05-02 Apple Inc. Saphirabdeckung für elektronische Vorrichtungen

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EP3226083A1 (de) 2017-10-04
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EP3226082A1 (de) 2017-10-04

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