US20170357213A1 - Timepiece shaft - Google Patents

Timepiece shaft Download PDF

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Publication number
US20170357213A1
US20170357213A1 US15/618,859 US201715618859A US2017357213A1 US 20170357213 A1 US20170357213 A1 US 20170357213A1 US 201715618859 A US201715618859 A US 201715618859A US 2017357213 A1 US2017357213 A1 US 2017357213A1
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US
United States
Prior art keywords
shaft
pivot
functional portion
timepiece
guide
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.)
Abandoned
Application number
US15/618,859
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English (en)
Inventor
Vannina Linck
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.)
Rolex SA
Original Assignee
Rolex 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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Application filed by Rolex SA filed Critical Rolex SA
Assigned to ROLEX SA reassignment ROLEX SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINCK, VANNINA
Publication of US20170357213A1 publication Critical patent/US20170357213A1/en
Priority to US17/877,578 priority Critical patent/US11982977B2/en
Abandoned legal-status Critical Current

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Classifications

    • G04B13/026—
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • G04B17/34—Component parts or constructional details, e.g. collet, stud, virole or piton for fastening the hairspring onto the balance
    • 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
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring
    • G04B1/16—Barrels; Arbors; Barrel axles
    • 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
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • 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
    • G04B13/02—Wheels; Pinions; Spindles; Pivots
    • G04B13/021—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft
    • G04B13/022—Wheels; Pinions; Spindles; Pivots elastic fitting with a spindle, axis or shaft with parts made of hard material, e.g. silicon, diamond, sapphire, quartz and the like
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • 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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/06—Manufacture or mounting processes

Definitions

  • the invention concerns a timepiece shaft, especially a balance shaft.
  • the invention also concerns an oscillator or a watch movement or a timepiece comprising such a shaft.
  • the balance shaft is an essential component of the timepiece regulating unit.
  • the balance shaft comprises at each end a pivot-shank which is prolonged by a pivot.
  • the balance shaft in particular carries the spiral spring and oscillates on its pivots in bearings.
  • the pivot-shanks and the pivots of the shaft constituting zones of less mechanical strength are designed to take up the forces at play. Nevertheless, in certain cases, especially under high-intensity impact, the pivots may be bruised against their respective bearing on account of their slight dimensions, particularly their slight diameter.
  • the shaft needs to:
  • Timepiece shafts are traditionally cut out from a 20AP steel, then tempered.
  • the pivots are then rolled in order to obtain the required surface condition and surface hardness.
  • the hardness typically attains at least 700 HV.
  • Shafts of 20AP steel or those made of other metallic materials, whether or not they have been hardened, require this rolling operation in the area of the pivots to ensure their manufacturing precision, durability over time to wear and tear as well as impact, and to ensure the optimal operation of the movement by control of the tribological parameters.
  • This operation consisting of polishing and surface hardening steps for the surface of the pivot, is complex and delicate, and requires great skill on the part of the person carrying out the process.
  • 20AP steel contains lead (0.2% by weight) and will soon need to be replaced by another lead-free steel such as FinemacTM (or 20C1A).
  • the fabrication of these shafts is identical: they are cut out from a bar before tempering, then heat treated and tempered to increase the hardness. A stress-relief annealing makes it possible to eliminate internal stresses and prevents these shafts from breaking like glass under impact.
  • the principal defect of this steel is its lack of hardness in the area of the pivots and therefore the need for a rolling operation to achieve the required final properties.
  • These shafts of 20AP or Finemac steel are also ferromagnetic and can cause perturbations in the running if the movements containing them are subjected to magnetic fields, due to residual magnetization.
  • shafts of 20AP or Finemac steel with shafts of austenitic steel or of austenitic alloys based on cobalt or nickel, hardened by carbon or nitrogen ion implantation. These are rolled as well, in order to improve their properties.
  • shafts According to patent application EP2757423, shafts have been made from an austenitic stainless steel of type 316L for the purpose of minimizing the sensitivity to magnetic fields, but the obtained strength, as well as the hardness, fall short of the required characteristics to ensure the wear resistance.
  • the solution of applying a coating of DLC (Diamond Like Carbon) type has been contemplated, but risks of significant delamination have been identified.
  • Patent application EP2757423 discloses a solution for hardening of an austenitic steel or an austenitic cobalt alloy or an austenitic nickel alloy by means of a thermochemical treatment aimed at integrating carbon or nitrogen atoms in the interstitial sites of the crystal lattice of the alloy in order to strengthen the material before carrying out the rolling of the pivot, while limiting the risks of corrosion of the shaft.
  • the hardness so achieved is close to 1000 HV, which theoretically places this type of part at a better level than parts made from 20AP steel.
  • a shaft of metal matrix composite with 92% WC and 8% nickel has a toughness of 8 MPa ⁇ m 1/2 and a hardness greater than 1300 HV.
  • the use of composites containing particles which are liable to become detached constitutes a risk.
  • the purpose of the invention is to provide a timepiece shaft able to remedy the aforementioned drawbacks and improve the known timepiece shafts of the prior art.
  • the invention proposes a hard and sturdy timepiece shaft whose manufacturing process is simplified.
  • a timepiece shaft according to the invention is defined by claim 1 .
  • a shaft and guide assembly according to the invention is defined by claim 10 .
  • An oscillator according to the invention is defined by claim 13 .
  • a watch movement according to the invention is defined by claim 14 .
  • a timepiece according to the invention is defined by claim 15 .
  • the appended figures represent, as an example, three embodiments of a timepiece shaft according to the invention, different embodiments of systems according to the invention and an embodiment of a timepiece according to the invention.
  • FIG. 1 is a view of a first embodiment of a timepiece according to the invention, comprising a first embodiment of a shaft according to the invention.
  • FIG. 2 is a view of a first variant of a first embodiment of a shaft and guide assembly according to the invention.
  • FIG. 3 is a view of a second variant of the first embodiment of the shaft and guide assembly according to the invention.
  • FIG. 4 is a view of a second embodiment of the shaft and guide assembly according to the invention.
  • FIG. 5 is a view of a second embodiment of the shaft according to the invention.
  • FIG. 6 is a diagram of variations in the quality factor of a sprung balance oscillator in different clock positions, the oscillator being outfitted with a classical shock-absorbing bearing.
  • FIG. 7 is a diagram of variations in the quality factor of a sprung balance oscillator in different clock positions, the oscillator being outfitted with a ball bearing.
  • FIG. 8 is a view of a third embodiment of the shaft according to the invention.
  • FIG. 9 is a cross sectional view in the plane A-A of FIG. 8 of the third embodiment of the shaft according to the invention.
  • the timepiece is a watch, for example, in particular a wristwatch.
  • the timepiece comprises a watch movement 110 , in particular a mechanical movement.
  • the watch movement comprises an oscillator 100 , in particular a sprung balance 8 oscillator.
  • the balance is, for example, fitted to a balance shaft 1 .
  • the balance shaft 1 comprises a first functional portion 2 a ; 2 b including:
  • the first functional portion is made of ceramic and the first functional portion has a first outer diameter D 1 , for instance a maximal outer diameter, less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm.
  • the shaft 1 comprises a first pivot 21 a , a first pivot-shank 22 a , a portion 33 for receiving a plate 9 , a seat 34 for receiving the balance 8 , a portion 32 for receiving the balance 8 , a portion 31 for receiving a collet of the spiral (not shown), a second pivot 21 b and a second pivot-shank 22 b .
  • the pivot-shank part has a dimension greater than 0.1 mm, or greater than 0.2 mm, or greater than 0.25 mm in at least one direction, or in all directions.
  • the pivot part has a dimension greater than 0.04 mm, or greater than 0.05 mm, or greater than 0.1 mm in at least one direction, or in all directions
  • the first pivot-shank part comprises a longitudinal piece of the pivot-shank (or at least the outer surface of a piece of the pivot-shank) for a length of at least 0.2 mm.
  • the first pivot part comprises a longitudinal piece of the pivot (or at least the outer surface of a piece of the pivot) for a length of at least 0.1 mm.
  • the shaft 1 comprises two first functional portions 2 a and 2 b each one including:
  • the two first functional portions are made of ceramic and each of the two first functional portions has a first outer diameter D 1 , for example a maximal outer diameter, less than 0.5 mm, or less than 0.4 mm, or less than 0.2 mm, or less than 0.1 mm.
  • the first functional portion may provide various functions, such as in particular:
  • the first and second pivots 21 a , 21 b provide a pivoting function and a force absorbing function in the event of impact or, more generally, in the event of acceleration undergone by the timepiece containing the shaft.
  • the first and second pivot-shanks 22 a and 22 b provide a force absorbing function in event of impact or, more generally, in event of acceleration undergone by the timepiece containing the shaft.
  • the shaft may also have a second functional portion 3 , especially:
  • the portions 31 , 32 and 33 each provide a receiving function.
  • the second functional portion has a second outer diameter D 2 , for example a maximal outer diameter, less than 2 mm, or less than 1 mm, or less than 0.5 mm.
  • the second functional portion is made of ceramic.
  • the ratio of the dimension of the first diameter to the dimension of the second diameter is less than 0.9, or less than 0.8, or less than 0.6, or less than 0.5, or less than 0.4.
  • first functional portion and/or the second functional portion is made of ceramic means that this functional portion is entirely made of ceramic.
  • the realization of the functional portion in a material composed of ceramic grains bonded together by a nonceramic matrix, such as a metal matrix, is excluded.
  • Ceramic is understood to mean a homogeneous or substantially homogeneous material, including on the microscopic level.
  • the ceramic is homogeneous in at least one direction, or in all directions, for a distance greater than 6 ⁇ m, or greater than 10 ⁇ m, or greater than 20 ⁇ m.
  • the ceramic does not have non-ceramic material in at least one direction, or in all directions, for a distance greater than 6 ⁇ m, or greater than 10 ⁇ m, or greater than 20 ⁇ m.
  • the first functional portion has dimensions greater than 20 ⁇ m or 40 ⁇ m or 50 ⁇ m in at least one direction or in three directions mutually perpendicular to each other and/or the first functional portion has a diameter equal to that of the shaft in the area of any point of this first functional portion and/or the first functional portion is situated between two planes perpendicular to the geometrical axis of the shaft.
  • the second functional portion has dimensions greater than 20 ⁇ m or 40 ⁇ m or 50 ⁇ m in at least one direction or in three directions mutually perpendicular to each other and/or the second functional portion has a diameter equal to that of the shaft in the area of any point of this second functional portion and/or the second functional portion is situated between two planes perpendicular to the geometrical axis of the shaft.
  • the ceramic is for the most part or principally composed (by weight or by moles) of:
  • zirconium oxide and/or alumina may be the preponderant elements in the ceramic. Nevertheless, the proportion by weight or by moles of zirconium oxide and/or alumina may be less than 50%.
  • the ceramic comprises, in addition to zirconium oxide and/or alumina, one or more of the following elements:
  • the ceramic may be composed for the most part or principally (by weight or by moles) of silicon nitride.
  • silicon nitride may be the preponderant element in the ceramic. Nevertheless, the proportion by weight or by moles of silicon nitride may be less than 50%.
  • the ceramic comprises, in addition to silicon nitride, one or more of the following elements:
  • the ceramic may be one of the ceramics of the following table:
  • the pieces may be geometrically conformable and of a sufficient hardness to do without any after-treatment.
  • the injection molding or pressing of a preform only the ends of which will undergo grinding makes it possible to optimize the process, especially thanks to time savings in the manufacturing cycle.
  • CIP cold isostatic pressing
  • the pivots do not become marred by impact and the performance is maintained over time.
  • these pivots will not become deformed, whereas steel pivots may bend and thereby affect the chronometry of the timepiece.
  • ceramics such as those presented above make it possible to maintain the geometrical integrity of the pivots over time.
  • ceramics offer the supplemental advantage of being non-magnetic, and not influencing the running of the timepiece when it is subjected to a magnetic field, especially a magnetic field greater than 32 kA/m (400 G).
  • the entire shaft is made of ceramic.
  • the ceramic part it is conceivable to limit the ceramic part to the first functional portion which includes at least one pivot and/or at least one pivot-shank.
  • the first portion has a surface of revolution, especially a cylindrical surface or a conical surface or a truncated conical surface or a curve generating surface.
  • the pivot-shank and the pivot may be merged or at least not be bounded off by a free border such as a flange.
  • the pivot-shank and the pivot can be separated by a truncated conical surface or a curve generating surface.
  • FIGS. 2 and 3 Two variants of a first embodiment of an assembly 41 comprising an shaft 1 as described above and at least one guide 51 , especially a bearing 51 , the shaft being designed to rotate or pivot in the at least one bearing, are shown respectively in FIGS. 2 and 3 .
  • the guide may be in the form of a conventional shock-absorbing bearing.
  • the at least one bearing 51 comprises a bearing stone 511 designed to cooperate with a cylindrical or truncated conical section of a pivot 21 ′ and an endstone 512 designed to cooperate with one end 212 ′ of the pivot.
  • the stones thus cooperate with the pivot 21 ′ for the pivoting and the receiving, or axially bounding, of the shaft in the guide.
  • the shaft 1 comprises a pivot 21 ′ having an end 212 ′ which is bulging or convex.
  • the shaft 1 comprises a pivot 21 ′′ having an end 212 ′′ which is hollow or concave.
  • shafts made of ceramic a material which is both hard and tough, makes it possible to achieve geometries which can optimize and ensure permanent contact in the area of the pivot and the bearing in which it pivots, especially in the area of the ends of the pivot. This would be hard to accomplish with conventional rolled alloys such as 20AP steel where the risk of loss of performance when wearing would be more significant, especially on account of the very great contact pressure.
  • FIG. 4 A second embodiment of an assembly 42 comprising a shaft 1 as described above and at least one guide, especially a bearing 52 , the shaft being designed to rotate or pivot in the at least one guide, is represented in FIG. 4 .
  • the at least one guide 52 comprises a ball race way 521 and balls 522 , the balls cooperating by contact with a pivot 21 * having a conical end 212 * for guiding the shaft in the guide.
  • the end of the pivot 21 * could alternatively have a truncated conical surface. The balls thus roll along the ball race way and the pivot at the same time.
  • FIGS. 6 and 7 illustrate the advantages of a ball bearing designed to cooperate with an oscillator of sprung balance type.
  • FIGS. 6 and 7 illustrate the advantages of a ball bearing designed to cooperate with an oscillator of sprung balance type.
  • FIGS. 6 and 7 obtained respectively by measuring in different clock positions an oscillator cooperating with a classical shock-absorbing bearing and by measuring in different clock positions an oscillator cooperating with a ball bearing, that the operation of the oscillator cooperating with a ball bearing shows fewer deviations of the quality factor between the different clock positions than those caused by the operation of the oscillator cooperating with a classical shock-absorbing bearing.
  • a second embodiment of a timepiece shaft 1 ′ according to the invention is described below in regard to FIG. 5 .
  • This shaft 1 ′ is designed to be mounted on a pivot shaft 6 , particularly a pivot shaft made of a different material, especially a free-cutting steel.
  • the first functional portion may comprise a pivot 2 a
  • the second functional portion may be present for example in the form of a portion 35 designed to be fixed, in particular by driving or welding, inside a bore 36 formed in the body of the pivoting shaft 6 .
  • the invention has been described above in regard to a balance shaft. However, this invention may obviously be applied to any other timepiece shaft, such as a pivoting shaft of a watch wheel such as a wheel involved in the finishing chain of a watch movement, especially a center wheel, or a large intermediate wheel, or a small intermediate wheel, or a seconds wheel.
  • a pivoting shaft of a watch wheel such as a wheel involved in the finishing chain of a watch movement, especially a center wheel, or a large intermediate wheel, or a small intermediate wheel, or a seconds wheel.
  • a timepiece shaft according to the invention may also be implemented in the context of an optimization of a watch escapement and thus enable the pivoting of a pallet wheel or a blocker or a pallet involved in the escapement.
  • this invention can be applied to any watch wheel involved in an additional timepiece function, such as a calendar or a chronograph.
  • the first functional portion may provide a translatory movement function.
  • the timepiece shaft here is present in the form of a pin 1 ′′ comprising a first functional portion 2 a which is present in the form of a pivot-shank 22 a .
  • This latter cooperates with a groove 53 formed inside a watch component, such as a chronograph hammer 91 , so as to guide said component in translatory movement, in particular to guide said component in translatory movement in the longitudinal direction of said groove.
  • the pin 1 ′′ has a second functional portion which is present in the form of a pivot-shank 45 designed to be driven inside a bore 46 of a watchmaking movement-blank 81 .
  • the first and second functional portions are bounded off by a flange 450 , especially a seat 450 .
  • the ceramic pieces require neither heat treatment nor rolling to obtain good performance in wear resistance.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Sliding-Contact Bearings (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Rolling Contact Bearings (AREA)
  • Electromechanical Clocks (AREA)
US15/618,859 2016-06-13 2017-06-09 Timepiece shaft Abandoned US20170357213A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US17/877,578 US11982977B2 (en) 2016-06-13 2022-07-29 Method of manufacturing a timepiece shaft

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16174244.0A EP3258325B1 (fr) 2016-06-13 2016-06-13 Axe horloger
EP16174244.0 2016-06-13

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/877,578 Division US11982977B2 (en) 2016-06-13 2022-07-29 Method of manufacturing a timepiece shaft

Publications (1)

Publication Number Publication Date
US20170357213A1 true US20170357213A1 (en) 2017-12-14

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ID=56120978

Family Applications (2)

Application Number Title Priority Date Filing Date
US15/618,859 Abandoned US20170357213A1 (en) 2016-06-13 2017-06-09 Timepiece shaft
US17/877,578 Active US11982977B2 (en) 2016-06-13 2022-07-29 Method of manufacturing a timepiece shaft

Family Applications After (1)

Application Number Title Priority Date Filing Date
US17/877,578 Active US11982977B2 (en) 2016-06-13 2022-07-29 Method of manufacturing a timepiece shaft

Country Status (5)

Country Link
US (2) US20170357213A1 (fr)
EP (3) EP3584640B1 (fr)
JP (2) JP7214335B2 (fr)
CN (2) CN113110010A (fr)
CH (1) CH712552B1 (fr)

Cited By (3)

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JP2020008572A (ja) * 2018-07-10 2020-01-16 ブランパン・エス アー セラミックから作成した非磁性のシャフト状部分を伴う計時器構成部品
US10761482B2 (en) * 2016-07-19 2020-09-01 Nivarox-Far S.A. Component for a timepiece movement
US20200326656A1 (en) * 2019-04-12 2020-10-15 Rolex Sa Method for producing a surface of revolution of a clock or watch component

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JP7143675B2 (ja) * 2018-08-14 2022-09-29 セイコーエプソン株式会社 時計用部品、ムーブメントおよび時計
EP3627238A1 (fr) * 2018-09-21 2020-03-25 Nivarox-FAR S.A. Organe de maintien élastique pour la fixation d'un composant d'horlogerie sur un élément de support
EP3671368B1 (fr) * 2018-12-20 2022-11-23 The Swatch Group Research and Development Ltd Palier, notamment amortisseur de choc, et mobile tournant d'un mouvement horloger
EP3742236A1 (fr) * 2019-05-23 2020-11-25 Rolex Sa Dispositif horloger comprenant un premier composant fixé sur un deuxième composant par déformation plastique
WO2023036928A1 (fr) 2021-09-09 2023-03-16 Rolex Sa Élément inertiel pour mouvement horloger
EP4242752A1 (fr) 2022-03-11 2023-09-13 ETA SA Manufacture Horlogère Suisse Dispositif pour guider un arbre d'un balancier a ressort spiral
EP4242753A1 (fr) 2022-03-11 2023-09-13 ETA SA Manufacture Horlogère Suisse Dispositif pour guider un arbre d'un balancier a ressort spiral
WO2024074517A1 (fr) 2022-10-03 2024-04-11 Rolex Sa Axe horloger
EP4386485A1 (fr) 2022-12-16 2024-06-19 Rolex Sa Procédé de fabrication d'un composant horloger

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CH712552B1 (fr) 2021-12-15
EP3584640A1 (fr) 2019-12-25
JP2018028529A (ja) 2018-02-22
EP3258325B1 (fr) 2019-10-30
JP2023011848A (ja) 2023-01-24
CN113110010A (zh) 2021-07-13
US20220373977A1 (en) 2022-11-24
CH712552A2 (fr) 2017-12-15
CN107490950A (zh) 2017-12-19
JP7214335B2 (ja) 2023-01-30
US11982977B2 (en) 2024-05-14
EP3258325A1 (fr) 2017-12-20
EP3584640B1 (fr) 2023-01-11
CN107490950B (zh) 2021-05-07
EP4177677A1 (fr) 2023-05-10

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