JP6801770B2 - clock - Google Patents

Description

The present invention relates to a watch.

Conventionally, a wristwatch case is provided with a step motor and a train wheel, and a movement for driving an hour hand, a minute hand, and a second hand via the step motor and the train wheel. A crown is connected to such a movement via a winding stem, and a transparent member (decorative stone) is fixed to the head of the crown to improve decorativeness (see, for example, Patent Document 1). ).

In the wristwatch crown described in Patent Document 1, a recess is formed in the head of the crown body, and a sheet on which a mark for alignment is printed is fixedly arranged in the recess, and UV curing adhesion is performed on the sheet. The agent is applied. Then, after the transparent member is placed on the sheet coated with the UV curable adhesive, ultraviolet rays are irradiated to fix the transparent member to the head.

Japanese Unexamined Patent Publication No. 2002-62369

However, in the wristwatch crown described in Patent Document 1, there is a problem that the inner surface of the recess and the joint area of the transparent member with the adhesive may not be sufficient, and the transparent member is likely to come off from the recess. is there.

An object of the present invention is to provide a watch capable of securely fixing a decorative stone in a recess of a crown body.

The watch of the present invention has a head having a recess, a crown body having a shaft portion extending in a first direction from the head, a decorative stone fixed to the recess, and a penetration through which the shaft portion is inserted. An exterior case having a hole is provided, and the recess is provided with a bottom surface orthogonal to the extending direction of the shaft portion and an inner surface extending continuously from the outer peripheral edge of the bottom surface in a direction opposite to the first direction. The decorative stone includes a side surface, and the decorative stone extends in a direction opposite to the first direction, and is continuous from an end portion of the side surface opposite to the bottom surface in a direction away from the inner side surface. It has an inclined surface that is inclined, and the depth b of the side surface of the decorative stone is smaller than the depth a of the inner surface of the recess, and the inner surface of the recess and the side surface of the decorative stone. An adhesive is arranged between the space and between the inner surface of the recess and a part of the inclined surface.

According to the present invention, the recess and the decorative stone can be reliably fixed by the adhesive. Therefore, for example, the defective rate in the manufacturing process of the crown for watches can be reduced. Further, even after the production, even when an impact is applied to the concave portion of the decorative stone, it is possible to prevent the decorative stone from coming off from the concave portion due to the impact.

In the present invention, where α is the thickness of the adhesive arranged between the inner surface of the recess and the inclined surface, the depth a is the sum of the depth b and the thickness α. It is preferable that they are the same.

In the present invention, it is preferable that the inner side surface stands vertically from the bottom surface of the recess, and the side surface of the decorative stone is parallel to the inner side surface.

In the present invention, the adhesive is preferably composed of an ultraviolet curable adhesive.

In the present invention, the depth dimension a of the inner surface of the recess is preferably 0.5 mm or more.

The plan view of the timepiece which concerns on 1st Embodiment of this invention. The cross-sectional view of the timepiece in the 1st Embodiment above. The perspective view of the crown in the 1st Embodiment. Top view of the crown in the first embodiment. An enlarged view of the crown in the first embodiment. Sectional drawing of the timepiece which concerns on 2nd Embodiment of this invention.

[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of the clock 1 according to the present embodiment, and FIG. 2 is a cross-sectional view showing a cross section of the clock 1 cut along the line A1-A1 in FIG.
As shown in FIGS. 1 and 2, the watch 1 includes an outer case 2 that houses a movement and the like, which will be described later. The exterior case 2 includes a case body 3 and a back cover 4. The case body 3 includes a cylindrical body 11 and a bezel 12 provided on the surface side of the body 11.

A through hole 111 is formed on the side surface of the body 11, and a crown 7 having a shaft portion 82 through which the through hole 111 is inserted is provided. The bezel 12 is formed in a ring shape. The bezel 12 and the body 11 are connected by a fitting structure formed by irregularities formed on opposite surfaces or by means such as a double-sided adhesive tape or an adhesive. The bezel 12 may be rotatably attached to the body 11.
A cover glass 5 held by the bezel 12 is attached to the inside of the bezel 12.

On the back surface side of the case body 3, a disk-shaped back cover 4 that closes the opening on the back surface side of the case body 3 is provided. The back cover 4 is screwed and attached to the body 11 of the case body 3.
Metallic materials such as BS (brass), SUS (stainless steel), and titanium alloy are used for the body 11, the bezel 12, and the back cover 4.

[Internal structure of watch]
Next, the internal structure incorporated in the outer case 2 of the watch 1 will be described.
Inside the outer case 2, as shown in FIG. 2, a movement 6, a dial 15, a dial ring 16 arranged along the outer peripheral edge of the dial 15, a dial receiving ring 17, and an inner frame are provided. (Not shown) and is stored.
The movement 6 is attached to the inner circumference of the dial receiving ring. Further, the dial 15 is in contact with the surface of the dial receiving ring and is attached to the watch surface side (cover glass 5 side) of the movement 6.

[Movement configuration]
As the movement 6, those conventionally used for watches can be used. In the present embodiment, the movement includes a solar panel, a secondary battery for charging the power generated by the generator, and a step motor driven by the power of the secondary battery.
The movement 6 may be a movement for a general quartz clock in which a step motor is driven by a button-type primary battery, or a generator that generates electricity using a Zenmai as a drive source and charges the generated power of this generator. The movement may include a secondary battery and a step motor driven by the power of the secondary battery. Further, the movement 6 may be a movement for a mechanical timepiece in which the train wheel is rotated by the driving force of the mainspring and the speed is controlled by the speed governor.

The movement 6 of the present embodiment drives the hour hand 61, the minute hand 62, and the second hand 63 shown in FIG. 1 via a step motor and a train wheel train. Further, the movement 6 drives the date wheel 65 via a step motor and a train wheel. The layout, number, type, etc. of each guideline and date wheel are not limited to those shown in FIG.

[Crew configuration]
The crown 7 corresponds to the watch crown of the present invention and functions as an operating unit operated by the user. As shown in FIG. 2, the crown 7 includes a crown main body 8 and a decorative stone 9 fixed to the crown main body 8. Of these, the crown body 8 has a head 81 and a shaft 82 made of a metal such as brass or stainless steel.
The outer end of the head 81 is in a state of protruding from the body 11. The shaft portion 82 is connected to the winding stem 64 connected to the movement 6 inside the outer case 2 through the through hole 111.
A recess 810 opened toward the shaft portion 82 is formed in the central portion of the head 81 on the shaft portion 82 side. A tubular portion 811 is provided in the recess 810, and a shaft portion 82 is fitted into the tubular portion 811. Further, a recess 83 corresponding to the recess of the present invention is formed in the central portion of the head 81 on the side opposite to the shaft portion 82, and the decorative stone 9 is fixed to the recess 83 by the ultraviolet curing adhesive UV. Will be done.
The configuration of the recess 83 will be described later.
The shaft portion 82 is formed inside a metal pipe 66 fixed by brazing or the like so as to be slidable in the axial direction and rotatable around the axial line via a packing made of synthetic resin or the like.

FIG. 3 is a perspective view of the crown 7, FIG. 4 is a plan view of the crown 7, and FIG. 5 is a cross-sectional view of the crown 7 cut along the line B1-B1 shown in FIG.
Eight decorative portions 812 are formed on the outer peripheral surface of the head 81. The decorative portions 812 are arranged on the outer peripheral surface at equal intervals, and between the decorative portions 812, a V-shape extending in the extending direction of the shaft portion 82 (hereinafter, may be referred to as the first direction). A notch 813 is formed. That is, eight notches 813 are arranged at equal intervals on the outer peripheral surface thereof, similarly to the decorative portion 812. Further, the ridge lines 814 of the notch 813 are arranged at equal intervals with the ridge lines 951 of the decorative stone 9, which will be described later.

[Concave structure]
The recess 83 is a substantially columnar recess in which the decorative stone 9 is fixed, and the dimension of the recess 83 in the direction orthogonal to the first direction (hereinafter, may be referred to as the second direction) is the decorative stone 9. It is formed to have a size slightly larger than the size in the second direction. The recess 83 has a bottom surface 831 and an inner side surface 832 as shown in FIGS. 3 to 5. Of these, the substantially circular bottom surface 831 is a surface that the bottom surface 92 of the decorative stone 9 abuts, and the bottom surface 831 and the bottom surface 92 are formed of a flat surface. As a result, when the decorative stone 9 is arranged in the recess 83, the bottom surface 92 of the decorative stone 9 comes into contact with the bottom surface 831 of the recess 83 without any gap.

The inner side surface 832 stands vertically from the bottom surface 831 of the recess 83. Specifically, the inner side surface 832 extends continuously from the outer peripheral edge of the bottom surface 831 in the direction opposite to the first direction. The depth dimension a of the inner side surface 832 is set to 0.6 mm.
Further, an ultraviolet curable adhesive UV that is cured by irradiation with ultraviolet rays is arranged between the inner side surface 832 and the decorative stone 9, and the recess 83 is decorated by irradiating the ultraviolet curable adhesive UV with ultraviolet rays. Stone 9 is fixed.

Here, when the depth dimension of the inner side surface 832 of the recess 83 is less than 0.5 mm, the joint area (contact area) between the inner side surface 832 and the decorative stone 9 and the ultraviolet curable adhesive UV cannot be sufficiently secured. , In the manufacturing process of crown 7, the defective rate becomes high.

Specifically, as shown in Table 1, when the depth dimension of the inner side surface 832 is 0.3 mm, the number of defects is 6 and the defect rate is 30% when 20 crowns 7 are manufactured. I found out. Further, it was found that when the depth dimension of the inner side surface 832 is 0.4 mm, the number of defects is 4 when 20 crowns 7 are manufactured, and the defect rate is 20%.

On the other hand, when the depth dimension of the inner side surface 832 is 0.5 mm or more (when 0.5 mm to 0.7 mm), the number of defects is 0 when 20 crowns 7 are manufactured, and the defect rate is high. It turned out to be 0%. That is, if the depth dimension of the inner side surface 832 is set to 0.5 mm or more, a sufficient joint area between the inner side surface 832 and the decorative stone 9 and the ultraviolet curable adhesive UV is sufficiently secured, so that the recess 83 The decorative stone 9 is securely fixed.
As described above, the depth dimension a of the inner side surface 832 is preferably 0.5 mm or more. Therefore, in the present embodiment, the depth dimension is set to 0.6 mm.

[Composition of decorative stones]
As described above, the decorative stone 9 is fixed to the recess 83 of the head 81 of the crown body 8 in order to improve the aesthetic appearance of the crown 7, and thus the watch 1. In the present embodiment, the decorative stone 9 is made of glass.
As shown in FIGS. 3 to 5, the decorative stone 9 includes a top surface 91, a bottom surface 92, a curved surface 93, a side surface 94, and eight inclined surfaces 95.
The top surface 91 is formed in a regular octagon shape when viewed from the side opposite to the first direction. The bottom surface 92 facing the top surface 91 is formed in a substantially circular shape. A curved surface 93 is connected to the outer peripheral edge of the bottom surface 92. The curved surface 93 is curved in the direction opposite to the first direction and is connected to the side surface 94. The side surface 94 is a portion that extends vertically from the bottom surface 831 side of the recess 83 to the position of the bottom surface 831 side from the opening surface 833 of the recess 83. Specifically, the side surface 94 extends vertically from the end of the curved surface 93 in the direction opposite to the first direction. Therefore, when the decorative stone 9 is fixed to the recess 83, the side surface 94 of the decorative stone 9 and the inner side surface 832 of the recess 83 are parallel to each other.

Further, the depth dimension b of the curved surface 93 and the side surface 94 is set smaller than the depth dimension a of the inner side surface 832. For example, the depth dimension b of the curved surface 93 and the side surface 94 is set to about 0.8 times the depth dimension a of the inner side surface 832.
Each of the eight inclined surfaces 95 is a surface that connects the end portion of the side surface 94 on the side opposite to the first direction and each of the eight sides forming the top surface 91. These inclined surfaces 95 are continuously inclined from the end portion of the side surface 94 in a direction away from the inner side surface 832. In other words, each of these inclined surfaces 95 is formed in a substantially fan shape, is inclined in the first direction, and expands from each side of the top surface 91 toward the first direction. Further, each of the adjacent inclined surfaces 95 is connected at an angle, and a ridge line 951 is formed between the respective inclined surfaces 95. That is, the decorative stone 9 has eight ridge lines 951.

These eight ridges 951 are arranged at equal intervals with the ridge 814 of the notch 813, respectively. Thereby, for example, the decorative stone 9 can be easily aligned by arranging the decorative stone 9 in the recess 83 coated with the ultraviolet curable adhesive UV and then aligning the ridge line 814 and the ridge line 951. Can be done.

[Structure of UV curable adhesive]
The ultraviolet curable adhesive UV is composed of an ultraviolet curable resin that is cured by irradiation with ultraviolet rays. This ultraviolet curable adhesive UV is applied to the bottom surface 831 of the recess 83. Then, when the decorative stone 9 is arranged in the recess 83 to which the ultraviolet curable adhesive UV is applied, the ultraviolet curable adhesive UV applied to the recess 83 is extruded to the inner surface 832 side, and the inner surface 832 and the decorative stone 9 are decorated. It is filled between the stone 9 and the stone 9. In this state, the ridge line 814 and the ridge line 951 are aligned with each other, and the crown main body 8 is irradiated with ultraviolet rays. As a result, the ultraviolet curable adhesive UV is cured, and the decorative stone 9 is firmly fixed to the recess 83 of the head 81.
Although not shown in the present embodiment, the ultraviolet curable adhesive UV is also arranged between the bottom surface 92 of the decorative stone 9 and the bottom surface 831 of the recess 83.

Such an ultraviolet curable adhesive UV is arranged between the bottom surface 92 and the bottom surface 831 and also between the inner side surface 832 of the recess 83 and the decorative stone 9 as shown in FIG. Specifically, it is arranged between the inner side surface 832 and a part of the curved surface 93, the side surface 94, and the inclined surface 95 of the decorative stone 9. More specifically, since the curved surface 93 is curved in the direction opposite to the first direction, the ultraviolet curable adhesive UV arranged between the bottom surface 92 and the bottom surface 831 is extruded, and the curved surface is extruded. Along 93, UV curable adhesive UV located between the curved surface 93 and the inner surface 832 is arranged.
Further, since the side surface 94 and the inner side surface 832 are parallel to each other, the ultraviolet curable adhesive UV is evenly arranged between the side surface 94 and the inner side surface 832. Further, since the inclined surface 95 is inclined in a direction away from the inner side surface 832 from the end on the side opposite to the first direction of the side surface 94, ultraviolet rays are cured between the inclined surface 95 and the inner side surface 832. Adhesive UV is placed.

That is, the ultraviolet curable adhesive UV overlaps a part of the inclined surface 95, and the thickness dimension α thereof is the same as the distance from the end portion of the inclined surface 95 on the first direction side to the opening surface 833. .. Therefore, in the present embodiment, the depth dimension a of the inner side surface 832 is the thickness dimension α of the ultraviolet curable adhesive UV arranged so as to overlap the depth dimension b of the curved surface 93 and the side surface 94 and the inclined surface 95. Is the same as the sum of.
As described above, in the present embodiment, the ultraviolet curable adhesive UV is arranged between the four surfaces (bottom surface 92, curved surface 93, side surface 94 and inclined surface 95) of the decorative stone 9 and the recess 83. As a result, the decorative stone 9 is firmly fixed to the recess 83, and the movement of the decorative stone 9 in the direction opposite to the first direction is restricted.

[Effect of the first embodiment]
The clock 1 according to the present embodiment described above has the following effects.
Since the depth dimension a of the inner side surface 832 of the recess 83 is set to 0.6 mm, which is 0.5 mm or more, the ultraviolet curable adhesive UV is sufficiently arranged between the inner side surface 832 and the decorative stone 9. Will be done. According to this, since the bonding area between the recess 83 and the decorative stone 9 with the ultraviolet curable adhesive UV can be expanded, the recess 83 and the decorative stone 9 can be reliably fixed. Therefore, for example, the defective rate in the manufacturing process of the crown 7 can be reduced. Further, even after the production, even when an impact is applied to the decorative stone 9, it is possible to prevent the decorative stone 9 from coming off from the recess 83 due to the impact.

Since the inner side surface 832 of the recess 83 stands vertically from the bottom surface 831 and the decorative stone 9 has a side surface 94 parallel to the inner side surface 832, the inner side surface 832 and the side surface 94 of the decorative stone 9 are substantially equal. UV curable adhesive UV can be placed in. That is, the bonding force between the inner side surface 832 and the side surface 94 can be increased as compared with the case where the inner side surface 832 and the side surface 94 are not parallel to each other. Therefore, the decorative stone 9 can be fixed to the crown body 8.

Since the ultraviolet curable adhesive UV is arranged between the inclined surface 95 of the decorative stone 9 and the inner surface 832, the decorative stone 9 can be fixed not only on the inner surface 832 of the recess but also on the opening surface 833 side. .. According to this, since the decorative stone 9 can surely restrict the movement of the recess 83 toward the opening surface 833, the strength of the crown 7 against impact and the like can be further increased.

Since the adhesive arranged between the inner side surface 832 of the recess 83 and the decorative stone 9 is composed of the ultraviolet curable adhesive UV, the ultraviolet curable adhesive UV may be cured until the ultraviolet is irradiated. Absent. According to this, after arranging the decorative stone 9 in the recess 83, the position of the decorative stone 9 can be easily adjusted only by aligning the ridge line 814 and the ridge line 951.

Here, if at least one of the bottom surface 831 of the recess 83 and the bottom surface 92 of the decorative stone 9 is not flat, the decorative stone 9 cannot be stably arranged in the recess 83.
On the other hand, in the present embodiment, the bottom surface 831 of the recess 83 and the bottom surface 92 of the decorative stone 9 are formed by a flat surface. Therefore, when the decorative stone 9 is arranged in the recess 83, the bottom surface 92 of the decorative stone 9 is formed. The ultraviolet curable adhesive UV is sandwiched between the bottom surface 831 of the recess 83 and abutted with almost no gap. According to this, the decorative stone 9 can be stably arranged in the recess 83.
Further, in the present embodiment, since the decorative stone 9 can be reliably fixed in the vicinity of the inner side surface 832 of the recess 83, for example, the decorative stone 9 may be composed of a substance that obstructs the passage of ultraviolet rays. That is, since the material of the member used as the decorative stone 9 is not selected, the possibility of improving the aesthetic appearance of the crown 7 can be further increased.

[Second Embodiment]
Next, the clock 1A according to the second embodiment of the present invention will be described.
In the watch 1 according to the first embodiment, the decorative stone 9 fixed to the recess 83 of the head 81 of the crown 7 has a top surface 91, a bottom surface 92, a curved surface 93, a side surface 94, and an inclined surface 95. there were. On the other hand, the decorative stone of the clock 1A according to the present embodiment is different from the clock 1 in that it has a substantially hemispherical shape different from that of the decorative stone 9.
In the following description, the same configurations as those in the first embodiment will be assigned the same numbers, the description will be omitted and simplified, and only the differences will be described in detail.

FIG. 6 is a cross-sectional view showing the clock 1A according to the second embodiment.
In the crown 7A of the present embodiment, as shown in FIG. 6, a decorative stone 9A is fixed to the recess 83 of the head 81 of the crown main body 8 instead of the decorative stone 9.
The decorative stone 9A has, for example, a hemispherical shape made of ceramic. As shown in FIG. 6, since the decorative stone 9A is formed in a hemispherical shape, the ultraviolet curing adhesive UV is arranged along the curved surface of the hemispherical decorative stone 9A.

[Effect of the second embodiment]
The clock 1A according to the present embodiment has the same effect as the clock 1 according to the above embodiment, and also has the following effects.
In the present embodiment, since the decorative stone 9A is formed in a hemispherical shape, the curved surface of the hemispherical decorative stone 9A on the opening surface 833 side can be covered with the ultraviolet curing adhesive UV. Therefore, the hemispherical decorative stone 9A can be reliably fixed.

[Modification of Embodiment]
The present invention is not limited to each of the above embodiments, and modifications, improvements, and the like within the range in which the object of the present invention can be achieved are included in the present invention.
In each of the above embodiments, the depth dimension a of the inner side surface 832 of the recess 83 is 0.6 mm. However, the present invention is not limited to this. For example, the depth dimension a may be 0.5 mm or 0.7 mm. That is, the depth dimension a may be 0.5 mm or more.

In the first embodiment, the depth dimension b of the curved surface 93 and the side surface 94 is set to be about 0.8 times the depth dimension a of the inner side surface 832. However, the present invention is not limited to this. For example, the depth dimension b of the curved surface 93 and the side surface 94 may be about 0.5 times or about 0.9 times the depth dimension a of the inner side surface 832. That is, the depth dimension b may be smaller than the depth dimension a.

In each of the above embodiments, the inner side surface 832 is vertically erected from the bottom surface 831 of the recess 83. However, the present invention is not limited to this. For example, the inner side surface 832 does not have to stand vertically, and may be inclined in the direction toward the decorative stones 9, 9A, or may be inclined in the direction away from it.

In the first embodiment, the decorative stone 9 has a side surface 94 as an upright surface that stands vertically from the bottom surface side of the recess 83 to a position on the bottom surface 831 side from the opening surface 833 of the recess 83. However, the present invention is not limited to this. For example, it is not necessary to provide an upright surface as in the second embodiment.
Further, in the first embodiment, the decorative stone 9 has an inclined surface 95 that is continuous from the end of the side surface 94 as an upright surface and is inclined in a direction away from the inner side surface 832. However, the present invention is not limited to this. For example, the decorative stone 9 does not have to have the inclined surface 95. That is, the shape of the decorative stone 9 is not limited to the shape of the first embodiment, and may be a triangular pyramid or a quadrangular pyramid, or may be a triangular prism or a quadrangular prism. In other words, the decorative stone 9 may have any shape.

In the first embodiment, the ultraviolet curable adhesive UV is arranged between the inclined surface 95 and the inner surface 832 of the decorative stone 9. However, the present invention is not limited to this. For example, the UV curable adhesive UV may not be arranged between the inclined surface 95 and the inner surface 832. Even in this case, since the ultraviolet curable adhesive UV is arranged between the inner side surface 832 and the curved surface 93 and the side surface 94, if the depth dimension b is 0.5 mm or more, the above embodiment It can produce almost the same effect. Further, in this case, since the ultraviolet curable adhesive UV is not arranged on the inclined surface 95, the aesthetic appearance of the decorative stone 9 can be further improved.

In each of the above embodiments, the bottom surface 92 of the decorative stones 9 and 9A and the bottom surface 831 of the recess 83 are flat surfaces. However, the present invention is not limited to this. For example, the bottom surface of the decorative stones 9, 9A may be protruding or may have a recess. In this case, the shape of the bottom surface 831 of the recess 83 may be a shape that matches the shape of the bottom surface 92 of the decorative stones 9, 9A. Even in this case, the same effect as that of each of the above embodiments can be obtained.

In each of the above embodiments, the decorative stones 9, 9A are made of glass and ceramic. However, the present invention is not limited to this. That is, in the above embodiment, the ultraviolet curable adhesive UV is arranged and fixed between the inner side surface 832 of the recess 83 and the decorative stone 9, so that the decorative stone 9 is not limited to the transparent stone, but acrylic. It may be composed of sapphire, ruby, Swarovski, diamond, onyx, pearl, plastic and the like.

In each of the above embodiments, an ultraviolet curable resin (ultraviolet curable adhesive UV) is used as an adhesive for fixing the decorative stones 9 and 9A to the recess 83. However, the present invention is not limited to this. For example, as the adhesive, a silicone-based adhesive may be used instead of the ultraviolet curable adhesive UV. That is, any adhesive may be used.

1 ... watch, 11 ... body, 111 ... through hole, 12 ... bezel, 15 ... dial, 16 ... dial ring, 1A ... watch, 2 ... exterior case, 3 ... case body, 4 ... back cover, 5 ... cover glass , 6 ... movement, 61 ... hour hand, 62 ... minute hand, 63 ... second hand, 64 ... winding true, 65 ... day wheel, 66 ... pipe, 7 ... crown (watch crown), 8 ... crown body, 81 ... head, 810 ... concave, 812 ... decorative part, 813 ... notch, 814 ... ridgeline, 82 ... shaft part, 83 ... concave, 831 ... bottom surface, 832 ... inner surface, 833 ... opening surface, 9,9A ... decorative stone, 91 ... heaven Surface, 92 ... Bottom surface, 93 ... Curved surface, 94 ... Side surface (upright surface), 95 ... Inclined surface, 951 ... Ridge line, UV ... UV curable adhesive, a ... Dimensions, b ... Dimensions, α ... Dimensions.

Claims (5)

A head having a recess, and a crown body having a shaft portion extending in the first direction from the head.
The decorative stone fixed to the recess and
An exterior case having a through hole through which the shaft portion is inserted is provided.
The recess includes a bottom surface orthogonal to the extending direction of the shaft portion, and an inner surface surface continuously extending from the outer peripheral edge of the bottom surface in a direction opposite to the first direction.
The decorative stone has a side surface extending in a direction opposite to the first direction and an inclined surface continuously inclined in a direction away from the inner side surface from an end portion of the side surface opposite to the bottom surface. Have,
The depth b of the side surface of the decorative stone is smaller than the depth a of the inner surface of the recess.
A timepiece characterized in that an adhesive is arranged between the inner surface of the recess and the side surface of the decorative stone, and between the inner surface of the recess and a part of the inclined surface. .. In the watch according to claim 1,
Assuming that the thickness of the adhesive arranged between the inner surface of the recess and the inclined surface is α, the depth a is the same as the sum of the depth b and the thickness α. A watch that features. In the watch according to claim 1 or 2.
The inner surface stands vertically from the bottom surface of the recess and
A timepiece characterized in that the side surface of the decorative stone is parallel to the inner surface surface. In the timepiece according to any one of claims 1 to 3.
A timepiece characterized in that the adhesive is composed of an ultraviolet curable adhesive. In the timepiece according to any one of claims 1 to 4.
A timepiece characterized in that the depth dimension a of the inner surface of the recess is 0.5 mm or more.

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