Clock dials, clocks

Abstract

To provide a dial for a watch with high decorativeness and designability.SOLUTION: A dial for a watch comprises: a substrate 7; a first area 11 that has a coating 61 provided on a surface of the substrate 7; second areas 22 that are obtained by irradiating the first area 11 with laser to remove the coating 61; and third areas 31 that is obtained by digging parts of the first area 11 into the substrate 7. The surface roughness of the third areas 31 is smaller than the surface roughness of the second areas 22.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a timepiece dial and to a timepiece equipped with such a dial. [Background technology]

[0002] Conventionally, there have been proposals to improve the decorativeness and design of the dial, which is the face of a wristwatch. For example, Patent Document 1 discloses a technology for improving the decorativeness by forming a variety of uneven patterns on the surface of the dial.

[0003] According to Patent Document 1, the dial is constructed by laminating an adhesive resin layer, a metal thin film, and a transparent plate on a base substrate, and the metal thin film is coated according to the uneven surface formed on the surface of the adhesive resin layer. Note that the uneven surface of the adhesive resin layer is formed by placing a flat plate on the resin layer before the resin layer hardens and pressing it evenly, and then pulling the flat plate upward, so that the surface of the resin layer is pulled by the flat plate, forming a number of uneven patterns. It also states that the three-dimensional effect of the uneven pattern is amplified by the transparent plate provided on the metal thin film. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-155181 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the dial of Patent Document 1 had a problem that it was difficult to create the intended uneven pattern. In detail, in the conventional method that depends on the viscosity of the adhesive resin layer, the material of the flat plate, the lifting speed, etc., the uneven pattern formed has no regularity, and it is difficult to quantitatively control the position, number, size, shape, and height of the unevenness. In other words, there was a demand for a highly decorative and designed timepiece dial that can express the intended pattern. [Means for solving the problem]

[0006] The timepiece dial of the present application comprises a substrate, a first region having a coating provided on the surface of the substrate, a second region formed by irradiating the first region with a laser to remove the coating, and a third region formed by recessing a portion of the first region down to the substrate, and the surface roughness of the third region is smaller than the surface roughness of the second region.

[0007] The timepiece according to the present application comprises the timepiece dial described above. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a plan view of a timepiece according to a first embodiment. [Diagram 2] FIG. 4 is a flowchart showing the flow of a method for manufacturing the dial. [Diagram 3] FIG. [Figure 4] Close-up of the mark. [Diagram 5] A diagram showing the manufacturing process of the dial. [Figure 6] A diagram showing the manufacturing process of the dial. [Figure 7] Enlarged photo of the scale. [Figure 8] FIG. 6 is a plan view of a timepiece according to a second embodiment. [Figure 9] Cross-section of the dial. [Figure 10] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] EMBODIMENT 1 ***Clock Overview*** FIG. 1 is a plan view of the timepiece according to this embodiment. The timepiece 100 of this embodiment is a three-hand analog wristwatch. The watch 100 is composed of a case 5, a dial 10, a second hand 1, a minute hand 2, an hour hand 3, a crown 50, etc. Body 5 is a case, and is made of metal such as stainless steel, titanium, etc. The back of dial 10 in body 5 houses a movement (not shown) for driving the hands.

[0010] The dial 10 is a circular timepiece dial, and has a through hole (not shown) in the center through which the axis of a pointer passes, and a second hand 1, a minute hand 2, and an hour hand 3 are attached to the axis of the pointer that passes through the through hole. The dial 10 is designed to resemble a starry sky. More specifically, the design is based on a dark blue first area 11 representing the night sky, and is dotted with a number of small circular round stars 21, large stars 22 consisting of pentagonal stars, and round, kneaded glittering stars 31, to create a starry sky. The dial 10 is also provided with a logo 8 representing the brand or logo of the watch 100, and a scale 23 which is an hour scale. In this embodiment, the small round star 21, the large star 22, the logo 8, and the scale 23 correspond to a second region, and the sparkling star 31 corresponds to a third region.

[0011] The crown 50 is a crown head, and is provided so that the time can be adjusted by pulling it out one step. Note that the crown may have other functions. The dial 10 is manufactured by a manufacturing method described below, and is therefore a highly decorative dial that reproduces the appearance of large and small stars twinkling in a clear night sky, as will be described in detail later.

[0012] ***How ​​the dial is manufactured*** Fig. 2 is a flow chart showing the flow of the manufacturing method for the dial. Fig. 3 is a plan view of the base material. Fig. 4 is an enlarged view of the first portion 40 of the dial 10 in Fig. 1. Figs. 5 and 6 are diagrams showing the manufacturing process in the bb cross section of the first portion 40 in Fig. 4. Here, the manufacturing method for the dial 10 will be explained mainly with reference to Fig. 2, and also with reference to Figs. 1 to 6 as appropriate.

[0013] In step S1, the substrate 7 is prepared. The substrate 7 shown in FIG. 3 is a metal substrate that will be the substrate of the dial 10. In the initial state, as shown in FIG. 3, the substrate 7 is substantially square, and the center of the substrate 7 is the area for forming the circular dial 10. In a preferred embodiment, the substrate 7 is a brass plate material that is approximately 40 mm square and approximately 0.3 mm thick. The diameter of the dial 10 is approximately 33 mm. The substrate 7 is not limited to this material, and may be any metal, such as nickel silver, precious metals such as gold, silver, and platinum, copper, stainless steel, or an alloy of these metals. The thickness of the substrate 7 and the diameter of the dial 10 are not limited to those described above.

[0014] 3, the substrate 7 has two reference holes 9 on a diagonal line. In the manufacturing process, the substrates 7 are set in a jig having reference pins corresponding to the reference holes 9 in groups of 10 to 20, and processed in each process while positioned. Note that in the manufacturing process, the substrates 7 may be moved and processed one by one.

[0015] In step S2, the entire surface of the substrate 7 is painted in the first painting process. In a preferred embodiment, a dark blue acrylic resin is sprayed onto the substrate 7 to form a coating 61 made of a non-conductor. As a result, as shown in the process diagram 51 of FIG. 5, the coating 61, which is a dark blue coating, is formed on the entire surface of the substrate 7. The portion having the coating 61 other than the second and third regions becomes the first region 11. The color is not limited to dark blue, and the color of the coating 61 may be other colors depending on the design. The paint is not limited to acrylic, and any resin material made of a non-conductor may be used, for example, cellulose resin, polyurethane resin, acrylic lacquer resin, etc. may be used. The formation method is not limited to spraying, and may be, for example, a spin coat method, an inkjet method, a dispenser method, octopus printing (intaglio printing), screen printing, etc.

[0016] In step S3, the portion of the dial 10 that will become the second region is laser processed. More specifically, the portion that will become the second region is irradiated with a laser to remove the coating 61 and expose the base material 7. For example, the process diagram 52 in FIG. 5 shows a state in which the portion that will become the large star 22 in the second region is irradiated with a laser, thereby removing the coating 61 and exposing the base material 7. The other portions of the second region, the small round star 21, the logo 8, and the scale 23, are also laser processed in the same manner. In a preferred embodiment, a laser irradiation device capable of irradiating ultrashort pulses of femtoseconds is used for the laser processing. The laser irradiation conditions are preferably set to a weak level that removes the coating 61. The irradiation conditions include parameters such as output frequency, scanning speed, laser output, and scanning path pitch. The scanning path pitch is not limited to femtoseconds, and may be picoseconds or microseconds.

[0017] In step S4, the exposed portion of the base material 7 is plated by a first plating process. More specifically, as shown in the process diagram 53 of FIG. 5, a first plating layer 71 is formed on the exposed portion of the base material 7 that will become the large star 22 of the second region. In a preferred embodiment, the plating is performed by electrolytic plating, and gold plating of a predetermined thickness is applied. Gold plating on a nickel base may also be used. In addition, the plating is not limited to gold plating, and any plating having a color tone and luster according to the design may be used, for example, rhodium, chrome, silver, copper, tin plating, etc.

[0018] In step S5, the entire surface of the substrate 7 is clear-coated in the second coating process. In a preferred embodiment, a coating liquid discharge device is used to apply a clear coating of acrylic resin to the entire surface of the substrate 7. The coating material is not limited to acrylic, and any resin material that is non-conductive and transparent may be used, for example, cellulose resin, polyurethane resin, acrylic lacquer resin, etc. may be used. After coating, the substrate 7 may be rotated to spread the coating liquid over the entire surface by centrifugal force. As a result, a coating film 62 is formed over the entire surface of the substrate 7, as shown in the process diagram 54 of FIG. 6.

[0019] In step S6, a polishing process is performed on the coating film 62 to form a clear protective film 63. In a preferred embodiment, the coating film 62 is primarily polished with a lapping machine, and then secondary polished with a polishing machine to form a transparent protective film 63 whose surface is polished and flattened, as shown in process diagram 55 of FIG.

[0020] In step S7, the portion that will become the third region is kneaded. More specifically, as shown in process diagram 55 of FIG. 6, the portion that will become the glittering star 31 in the third region is dug down to the substrate 7 using cutting tool 43 to form recesses 73. The recesses 73 penetrate the protective film 63 and coating 61 and are dug down to the substrate 7. In a preferred embodiment, cutting tool 43 uses a diamond-tipped punch to perform rotary drilling on the portion that will become the glittering star 31, thereby removing the protective film 63 and coating 61 and forming recesses 73 dug down to the substrate 7.

[0021] The bottom of the recess 73 has a shape having an apex when viewed from the cross-sectional direction. In a preferred embodiment, the bottom of the recess 73 has a conical shape that conforms to the tip of the cutting tool 43, and the apex angle θ of the cone is approximately 170°. Note that the apex angle θ is not limited to 170°, and any conical shape between 90° and 180° may be used. Moreover, the recesses 73 are formed using a diamond cutting tool 43 with a sharp tip, so that the surface is finished smoothly. More specifically, the surface roughness of the recesses 73 is smaller than the surface roughness of the base portion of the second region formed by laser processing. In other words, the surface roughness of the third region is smaller than the surface roughness of the second region. Therefore, the light reflectance of the third region is larger than the reflectance of the second region, so that the third region is observed to be brighter.

[0022] In step S8, the exposed portion of the base material 7 in the recess 73 is plated by a second plating process. In a preferred embodiment, the plating is performed by electrolytic plating, and a predetermined thickness of rhodium plating is applied to form a cone-shaped bottom of the recess 73 and a second plating layer 74 around the cone-shaped bottom, as shown in process diagram 56 of Figure 6. This completes the glitter star 31 in the third region. In the process diagram 56 of FIG. 6, the first region 11 is provided between the large star 22 in the second region and the glittering star 31 in the third region. The glittering star 31 in the third region is surrounded by the first region 11. In other words, the large star 22 whose surface is the first plating layer 71 and the glittering star 31 whose surface is the second plating layer 74 are arranged in a dark blue color representing the night sky, and the gold large star 22 is observed through the transparent protective film 63, while the silver glittering star 31 is observed exposed. The plating in the second plating step is not limited to rhodium plating, and any plating having a color tone and luster according to the design may be used, for example, gold plating, chrome plating, silver plating, copper plating, tin plating, etc.

[0023] Return to Figure 1. Up to this point, the large star 22 and the twinkling star 31 of the first portion 40 of the dial 10 have been described as representative examples, but the other large stars 22 and twinkling stars 31 are similarly formed in parallel. Moreover, the other elements of the second region, the small round star 21, the logo 8, and the scale 23, are also similarly formed in parallel.

[0024] FIG. 7 is an enlarged photograph of the second portion 41 of the dial 10 of FIG. 7, one sparkling star 31 and six small round stars 21 are arranged in the second portion 41. In other words, one sparkling star 31 is arranged surrounded by six small round stars 21 in the dark blue base of the first region 11. The six gold-plated small round stars 21 and the sparkling star 31 are observed to shine brightly in the deep blue color representing the night sky in the first area 11. The sparkling star 31, which has a smoother surface than the small round stars 21 and is plated with exposed rhodium, shines brighter than the small round stars 21. Furthermore, the conical surface at the bottom of the sparkling star 31 causes a variety of light reflections, causing the light to flicker depending on the observation angle, making the sparkling star 31 appear to shine brighter. Furthermore, rhodium is chemically stable and does not easily corrode or discolor, so it changes little over time even when exposed to air.

[0025] As described above, the dial 10 and timepiece 100 of this embodiment provide the following advantages. The dial 10 comprises a base material 7, a first region 11 having a coating 61 provided on the surface of the base material 7, a large star 22 as a second region formed by removing the coating 61 by irradiating the first region 11 with a laser, and a glittering star 31 as a third region formed by carving a portion of the first region 11 down to the base material 7, and the surface roughness of the glittering star 31 is smaller than the surface roughness of the large star 22.

[0026] According to this, the first region 11 has a coating 61 on the base material 7, the second region has various patterns such as a large star 22 where the coating 61 has been removed, and the third region has a glittering star 31 carved into the base material 7 and has a smoother surface than the surface of the second region. Thus, the dial 10 has three regions with different surface finishes. It is therefore possible to provide a timepiece dial 10 that is highly decorative and well designed. Furthermore, since the position, number, size, shape, etc. of each area can be quantitatively controlled by processing settings, it is possible to provide a dial 10 of consistent quality.

[0027] Moreover, the light reflectance of the surface of the sparkling star 31 in the third region is greater than the reflectance of the surface of the large star 22 in the second region. More specifically, the surface roughness of the recess 73 is less than the surface roughness of the base portion of the second region formed by laser processing. In other words, the surface roughness of the third region is less than the surface roughness of the second region. Therefore, the reflectance of light in the visible light region of the sparkling star 31 is greater than the reflectance of the surface of the first plating layer 71 of the large star 22, so the sparkling star 31 appears brighter. As a result, the reflectance of light differs from region to region, providing a variety of visual effects and further enhancing the decorativeness of the dial 10.

[0028] Furthermore, the sparkling star 31 in the third region is surrounded by the first region 11, which has a dark blue base representing the night sky. According to this, the glittering star 31, which is engraved into the substrate 7 and has a smooth finish, has a coating 61 and is placed in a first region 11 of a rich color tone that imitates the night sky, and the adjacent regions with different light reflectances create a visual contrast that makes the glittering star 31 stand out.

[0029] In addition, the first region 11 is provided between the large star 22 in the second region and the sparkling star 31 in the third region. In more detail, as shown in the process diagram 56 of FIG. 6, there is also a portion where the first region 11 is located between the large star 22 and the sparkling star 31. In this way, three areas with different surface finishes are adjacent to each other, creating a visual contrast, making it possible to provide a dial 10 with a variety of visual effects.

[0030] In addition, at least one of the large star 22 in the second region and the twinkle star 31 in the third region has a plated layer. In the preferred embodiment, both the large star 22 and the twinkle star 31 have been described as having plated layers, but at least one of them may have a plated layer depending on the design. According to this, at least one of the second and third regions will have a different color and texture from the base material 7, making it possible to provide a variety of visual effects and further enhance the decorativeness of the dial 10. In particular, by plating an area where part of the coating 61 has been removed by laser or cutting, it becomes possible to arrange patterns of the second and third regions with a metal-plated texture in any position, size, shape, and number on the non-metallic textured base.

[0031] Moreover, the coating 61 of the first region 11 is a non-conductor. In a preferred embodiment, the coating 61 is a coating made of a dark blue acrylic resin. According to this, when electrolytic plating is performed on at least one of the second and third regions, plating does not adhere to the first region 11, so that different surface finishes can be reliably produced.

[0032] Moreover, the sparkling star 31 in the third region has a shape having an apex when viewed from the cross-sectional direction. More specifically, the bottom of the recess 73 in the sparkling star 31 has a cone shape having an apex. This allows for a wider variety of visual effects to be obtained since the way light is reflected varies depending on the angle at which the shining star 31 is viewed. The shape of the shining star 31 as viewed from the cross-sectional direction is not limited to this, and the bottom surface may be formed of only one inclined surface.

[0033] The timepiece 100 is equipped with the above-mentioned dial 10. Therefore, it is possible to provide a watch 100 that is highly decorative and has a good design.

[0034] In this embodiment, the small round star 21, the large star 22, the logo 8, and the scale 23 correspond to the second region, but this is not limiting. For example, the small round star 21 and the large star 22 may be the second region, and the logo 8 and the scale 23 may be separate components.

[0035] In the present embodiment, the entire surface of the base material 7 is painted in the first painting process in step S2, but this is not limited to this. For example, the base material 7 may be plated before the entire surface of the base material 7 is painted in the first painting process. According to this, when laser processing is performed on the portion that will become the second area of ​​dial 10 in step S3, by forming portions where coating 61 is removed to expose the plating and portions where both coating 61 and the plating are removed to expose base material 7, it is possible to achieve a greater variety of expressions and improve design.

[0036] EMBODIMENT 2 ***Different dial styles*** Fig. 8 is a plan view of a timepiece according to this embodiment, and corresponds to Fig. 1. Fig. 9 is a cross-sectional view taken along line cc in Fig. 8, and corresponds to the process diagram 56 in Fig. 6. Here, the dial 70 of this embodiment will be described mainly with reference to Fig. 8, and also with reference to Fig. 9 as appropriate. The dial 70 of this embodiment has a different design from the dial 10 of the first embodiment, but is manufactured by substantially the same manufacturing method as the dial 10, and has three areas with different textures, just like the dial 10. Hereinafter, the same components as those of the first embodiment will be given the same numbers, and duplicated explanations will be omitted.

[0037] As shown in FIG. 8, the dial 70 of the timepiece 110 of this embodiment has a first region 11 that is a night sky as a background, and a mountain design in the second region that imitates Mt. Fuji on the 6 o'clock side, and a night sky with twinkling stars 31, 32, and 33 in the third region above Mt. Fuji. The first region 11 is a base region of dark blue color, the same as the dial 10. The mountain design in the second region is composed of a mountain surface portion 24 that represents the foot of the mountain, and a snow surface portion 25 that represents the snow-capped portion of the mountain peak. Both the mountain surface portion 24 and the snow surface portion 25 are formed in the laser irradiation process of step S3 in FIG. 2, but have different surface finishes. In more detail, the coating 61 is removed by laser irradiation in the snow surface portion 25, and only the substrate 7 is exposed, whereas the substrate 7 is exposed in the mountain surface portion 24, and then the surface of the substrate 7 is roughened. In more detail, the laser irradiation to the portion that will become the mountain surface portion 24 is stronger than the irradiation conditions for the portion that will become the snow surface portion 25. Furthermore, it is also possible to create linear patterns representing the undulations of mountain surfaces.

[0038] FIG. 9 shows this state diagrammatically, and the surface of the base material 7 in the portion that will become the mountain surface portion 24 is finished coarser than the surface of the base material 7 in the portion that will become the snow surface portion 25. The dial 70 has the same structure as the dial 10, except for the difference in the laser irradiation conditions. The first plating layer 71 is formed by electrolytic plating on the portion of the base material 7 that has been laser processed, and a transparent protective film 63 is provided thereon. The difference in surface roughness of the base material 7 is also reflected in the first plating layer 71, so when observed through the protective film 63, the difference between the uneven mountain surface portion 24 and the smooth snow surface portion 25 is visually felt as a difference in texture. In addition to the mountain design, the logo 8 and the scale 23 are also the second region, as in the dial 10. In addition, in the dial 70, a date window 15 is added as the second region. The date window 15 is a frame-shaped date window frame provided at the 3 o'clock position, and has the same structure as the logo 8 and the like.

[0039] Return to Figure 8. The dial 70 has three sparkling stars 31, 32, and 33 of different sizes as the third region. The largest sparkling star 31 is the same size as the sparkling star on the dial 10. The sparkling star 32 is one size smaller than the sparkling star 31. The sparkling star 33 is one size smaller than the sparkling star 32 and is the smallest sparkling star. Sparkling stars of different diameters can be made by adjusting the diameter of the cutting tool 43 in the kneading process of step S7 in FIG. 2. If the diameter of the cutting tool 43 is made larger, the size of the sparkling star will be larger, and if the diameter of the cutting tool 43 is made smaller, the size of the sparkling star will be smaller. Regardless of the diameter, the cross-sectional structure is the same as the sparkling star 32 in FIG. 9.

[0040] As described above, according to the dial 70 of this embodiment, in addition to the effects of the above embodiment, the following effects can be obtained. The dial 70 has a mountain surface portion 24 and a snow surface portion 25 of the second region imitating Mt. Fuji on the 6 o'clock side against the background of the first region 11 which is the night sky, and in the sky above Mt. Fuji there are glittering stars 31, 32, and 33 of the third region. In particular, the difference in texture between the uneven mountain surface portion 24 and the smooth snow surface portion 25 is expressed by differentiating the textures through laser processing. Therefore, it is possible to provide a timepiece dial 70 that is highly decorative and has a good design. Furthermore, since the position, number, size, shape, etc. of each area can be quantitatively controlled by processing settings, it is possible to provide a dial 70 of stable quality.

[0041] ***Variations*** FIG. 10 is a cross-sectional view of a modified example taken along line cc of FIG. 8, and corresponds to FIG. The process of creating the second region by laser processing in step S3 of FIG. 2 is not limited to surface finishing of the base material 7, but can also be applied to processing the base material 7. As shown in FIG. 10, the height of the substrate 7 at the mountain surface 24 is one step lower than the surface of the substrate 7 at the snow surface 25. This is achieved by increasing the laser irradiation conditions for the portion that will become the mountain surface 24 to a strength that allows cutting of the substrate 7, and then carving the substrate 7. In detail, the laser irradiation conditions are increased for the mountain surface 24, carving the substrate 7 to a predetermined depth, and then the laser irradiation conditions are weakened to finish the carved surface to the roughness of the mountain surface. Note that, except for the different production conditions based on the laser irradiation conditions, the configuration is the same as that of the dial 10, and a first plating layer 71 is formed by electrolytic plating on the substrate 7 portion that has been subjected to laser processing, and a transparent protective film 63 is provided thereon. This adds a three-dimensional effect due to the difference in height between the mountain surface 24, which has a rough texture, and the smooth snow surface 25, and thus a dial 70 for a watch with higher decorativeness and design can be provided. Note that a substrate 7 with a step formed in advance may be used. In this case, the same processing as above may be carried out on the base material 7 whose surface has been previously processed by cutting, embossing, laser processing, engraving, or the like.

[0042] Return to Figure 8. As described above, different sizes of twinkling stars can be made by adjusting the diameter of the cutting tool 43 in the kneading process of step S7 in FIG. The sparkling stars in the third region are not limited to stars in the night sky, but can also be applied to parts that perform the functions of the timepiece 100. For example, between 9 o'clock and 11 o'clock on the dial 70 in Fig. 8, the sparkling stars 32 in the third region are arranged as typesetting indicating minutes / seconds. Note that the typesetting is not limited to minutes / seconds, and for example, a large sparkling star may be used instead of the scale 23, or a character made up of a series of small sparkling stars may be used instead of the logo 8. This makes it possible to provide a timepiece dial 70 with a more decorative and stylish design. [Explanation of symbols]

[0043] 1...second hand, 2...minute hand, 3...hour hand, 5...body, 7...base material, 8...logo, 9...reference hole, 10...dial, 11...first area, 15...date window, 21...small round star, 22...large star, 23...scale, 24...mountain surface portion, 25...snow surface portion, 31...shiny star, 32...shiny star, 33...shiny star, 40...first portion, 41...second portion, 43...cutting tool, 50...crown, 61...coating, 62...coating film, 63...protective film, 70...dial, 71...first plating layer, 73...recess, 74...second plating layer, 100,110...watch.

Claims

1. A metal substrate; a first region having a non-conductive coating provided on a surface of the substrate; a second region obtained by removing the coating by irradiating the first region with a laser; A third region formed by recessing a portion of the first region to the base material, The surface roughness of the third region is smaller than the surface roughness of the second region; At least one of the second region and the third region has a plating layer. Clock dial.

2. The reflectance of light on the surface of the third region is greater than the reflectance of the surface of the second region.

2. The timepiece dial according to claim 1.

3. The third region is surrounded by the first region.

3. The timepiece dial according to claim 1 or 2.

4. The first region is provided between the second region and the third region. The timepiece dial according to any one of claims 1 to 3.

5. The plating layer is provided in the second region and the third region, the plating layer provided in the second region and the plating layer provided in the third region are made of different materials; The timepiece dial according to any one of claims 1 to 4.

6. The third region has a shape having a vertex when viewed in a cross-sectional direction. The timepiece dial according to any one of claims 1 to 5.

7. A timepiece dial according to any one of claims 1 to 6, clock.

8. A method of manufacturing a semiconductor device, comprising the steps of: forming a non-conductive coating on a surface of a metal substrate; forming a second region by removing the coating by irradiating a part of the region where the coating is formed with a laser; forming a third region by digging a part of the region where the coating is formed down to the base material, thereby exposing the base material; forming a plating layer on at least one of the second region and the third region by electrolytic plating after the step of forming the second region or the step of forming the third region; A method for manufacturing a timepiece dial, comprising:

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