Watch case and electronic clock

Abstract

To provide a watch case and an electronic clock capable of more compactly combining an exterior member while securing waterproofness.SOLUTION: A watch case includes: a housing (10); a windshield (20) whose first portion (21) of the side face faces the housing (10); an adhesive (51) which is positioned between the housing (10) and the windshield (20) to waterproof the inside of the housing (10); and an exterior member (30). The exterior member (30) is opposite to the second portion (22) different from the first portion (21) on the side face of the windshield (20).SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a watch case and an electronic watch. [Background technology]

[0002] Electronic watches, especially wristwatches worn on the body, are used in a variety of environments, so some are made waterproof. Known methods for making watches waterproof include those that use O-rings (packing) and those that use adhesives to create a sealed structure.

[0003] On the other hand, some electronic watches further combine exterior components such as a bezel to improve design and impact resistance (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2003-4869 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when combining exterior components while ensuring waterproofing, with conventional technology, the size of the electronic timepiece, particularly its thickness, increases, making it difficult to make it compact.

[0006] An object of the present invention is to provide a watch case and an electronic watch that can be combined with exterior components in a more compact manner while ensuring waterproofing. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides A housing and a windshield glass having a first portion of a side surface facing the housing; a waterproof member located between the housing and the windshield glass to waterproof the inside of the housing; An exterior member; Equipped with The exterior member faces a second portion of the side surface of the windshield, the second portion being different from the first portion. The watch case is characterized by the above. Effect of the Invention

[0008] According to the present invention, it is possible to obtain an effect that the exterior members can be combined more compactly while ensuring the waterproofness of the watch case. [Brief description of the drawings]

[0009] [Figure 1] 1 is a cross-sectional view illustrating the structure of an electronic timepiece according to an embodiment of the present invention. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a diagram showing a part of a cross section taken along a plane including a central axis of a housing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view illustrating the structure of an electronic timepiece 1 according to this embodiment. The electronic watch 1 comprises a watch case 100, a display unit 200, an operating unit 300, and the like. The watch case 100 houses a display unit 200 and an operating unit 300 inside. The watch case 100 comprises a housing 10, a crystal 20, an exterior member 30, a back cover 40, and the like.

[0011] The housing 10 has a cylindrical shape with both ends open, and one end (upper side) on which a display is made is sealed by the windshield glass 20, and the opposite end (lower side) is sealed by the back cover 40. The cross section of the space inside the housing 10 does not have to be of a uniform shape. There is no particular limitation, but for example, the upper open end and the windshield glass 20 may be circular in plan view, and the lower open end and the back cover 40 may be a square with rounded corners in plan view from above, or the cross section perpendicular to the height direction may change continuously or discontinuously along the way. The housing 10 is made of, for example, resin.

[0012] The windshield 20 is a transparent member such as glass, and is fixed to the housing 10 with an adhesive as described below. The back cover 40 is, for example, a conductive member such as metal or an insulating member such as resin, and is fixed to the housing 10 with screws or the like.

[0013] The exterior member 30 is a bezel or the like, and is used to absorb shocks to the body of the electronic timepiece 1 and as a decorative member for design purposes. The exterior member 30 is annular, but need not have a uniform structure. In the following, the position of the top surface of the exterior member 30 may be the position of the point located at the uppermost side of the exterior member 30. The exterior member 30 is connected to the side of the housing 10, etc. The connection may be, for example, fixed by screws (bolts) or by fitting. The exterior member 30 may be a resin member, a metal member, etc.

[0014] The display unit 200 performs display including at least the time display (capable of displaying information related to the time). The display unit 200 is not particularly limited, but may have, for example, a plurality of hands 210 and signs 220. The signs 220 include scales and hour characters for indicating the time, and the time and the like are indicated by the direction in which the circulating hands 210 point relative to the signs 220. The periphery of the display range of the display unit 200 is partitioned by a partition plate 230 located along the inner edge of the housing 10. In addition to or instead of this, the display unit 200 may have a display screen for digital display, for example, a liquid crystal display screen. The display unit 200 is positioned so that the display contents can be viewed from the outer surface side (upper side) through the windshield glass 20.

[0015] The operating unit 300 is located inside the housing 10 and includes a control unit that controls the operation of the display unit 200, a drive unit that operates the display unit 200 in response to a control signal from the control unit, and a power supply unit for supplying power to each unit of the operating unit 300. The control unit includes a CPU and a RAM. The timekeeping operation for counting the time may be performed by the control unit, or a timekeeping circuit may be provided separately from the control unit. The drive unit includes a motor and a gear train that is rotated by the motor, and the pointer rotates in response to the rotation of the gear train. The power supply unit supplies power to the control unit and the drive unit at a predetermined voltage. The operating unit 300 may include a battery as a power source for the power supplied by the power supply unit. The battery may be, for example, a secondary battery. Alternatively, the battery may be removable and replaceable.

[0016] FIG. 2 is a perspective view of a portion of the housing 10. As shown in FIG. Housing 10 has support parts 12 and 13 that protrude in two stages from inner wall surface 11, and protrusion part 14 at a portion facing first part 21 above support part 12. Support part 12 supports windshield glass 20, and support part 13 is located below support part 12 and supports parting panel 230.

[0017] Here, the support portions 12 and 13 protrude in an annular shape in the circumferential direction of the inner wall surface 11. The support portion 13 has a protruding slit, but is not limited to this. The protrusion portion 14 extends linearly in the up-down direction of the inner wall surface 11, for example. The protrusion portion 14 is located, for example, in at least three places at appropriate intervals.

[0018] The circular range defined by the positions of the tips of the protrusions 14 is the same as or slightly larger than the range of a plan view of the windshield glass 20 as seen from above. By inserting the windshield glass 20 into this circular range, the positional range of the windshield glass 20 is defined, reducing misalignment, while a gap is created between the windshield glass 20 and the inner wall surface 11 other than the protrusions 14.

[0019] FIG. 3 is a diagram showing a portion of a cross section (a) taken along a cross section line that does not include protrusion 14, and a portion of a cross section (b) taken along a cross section line that includes protrusion 14, the portion being a plane that includes the central axis of housing 10. 3(a), the windshield glass 20 has a third portion 23 along the outer edge of its inner surface (the side of the display unit 200) positioned on and supported by the support portion 12, and is contained within the inner wall surface 11. The thickness of the windshield glass 20 is greater than the height of the inner wall surface 11 above the support portion 12, that is, the windshield glass 20 protrudes upward relative to the housing 10. The side portion of the windshield glass 20 that faces the inner wall surface 11 of the housing 10 is the first portion 21.

[0020] Here, the first portion 21 is adhered to the inner wall surface 11 by an adhesive 51 (first adhesive) located between the first portion 21 and the housing 10, and the third portion 23 is adhered to the support portion 12 (housing 10) by an adhesive 52 (second adhesive) located between the third portion 23 and the housing 10. The adhesives 51 and 52 function as waterproof members, and thereby the upper side of the housing 10 is sealed to waterproof the inside of the housing 10 (prevent water from entering), thereby obtaining waterproofness. Note that, although the range of the adhesive 51 and the range of the adhesive 52 are shown as being separate in FIG. 3, they may be connected.

[0021] Between the first portion 21 and the inner wall surface 11, there is a gap in which a layer of adhesive 51 can form. Because the adhesive 51 in the adhered state has high elasticity, that is, the elastic modulus is not very high and it is a material that expands and contracts moderately, even if the electronic watch 1 is dropped and receives a large impact, the adhesive 51 is less likely to peel off from the housing 10 and the crystal 20 and housing 10 are less likely to be damaged.

[0022] Meanwhile, support part 12 has an annular upward protrusion 121 along its inner edge. This protrusion 121 prevents adhesive 52 from leaking out from the top surface of support part 12 before it hardens. Adhesive 52 may be of the same type as adhesive 51. Alternatively, adhesive 52 may be of a type that has a greater elastic modulus (harder) than adhesive 51 when bonded. This limits the relative movement of the bonded windshield glass 20 with respect to support part 12, ensuring a stable fixation.

[0023] The adhesive 51 and the adhesive 52 are not particularly limited, but may be a thermosetting adhesive. In this case, the heat required for the effect is within a range that does not affect the windshield glass 20 and the housing 10. Since heat does not need to be directly applied to the adhesive, the curing process is easy to carry out.

[0024] Here, the height of the first portion 21 is approximately equal to the width of the third portion 23. The outer edge of the third portion 23 and the bottom end of the first portion 21 are both the bottom ends of the side surfaces of the windshield glass 20, so that the area (bonding area) of the first portion 21 and the area (bonding area) of the third portion 23 are approximately equal. This ensures that waterproofness and robustness are stably maintained. "Almost equal" here is not meant strictly. A deviation of about 10 to 20% is acceptable. Alternatively, the height of the first portion 21 may be smaller than the width of the third portion 23.

[0025] As described above, the side surface (outer edge) of the portion of the windshield glass 20 that protrudes upward relative to the housing 10 (a portion different from the first portion 21) is chamfered to form a surface that is inclined with respect to the up-down direction (first portion 21), for example, a 45-degree inclined surface (C-chamfer). This inclined surface (chamfered surface) is the second portion 22. The second portion 22 faces the exterior member 30.

[0026] The outer surface (top surface) of the windshield glass 20 and the top surface of the exterior member 30 are substantially in the same plane. At the very least, the outer surface of the windshield glass 20 does not protrude above the top surface of the exterior member 30. "Substantially in the same plane" as used here includes cases where the outer surface of the windshield glass 20 is located completely in the same plane, as well as cases where the outer surface of the windshield glass 20 is located slightly below the top surface of the exterior member 30, for example, within a range (such as 0.1 mm) smaller than the thickness of SUS (approximately 0.6 to 0.75 mm). Having the outer surface of the windshield glass 20 slightly lower than the top surface of the exterior member 30 reduces the protrusion of the exterior member 30, while making it less likely for the windshield glass 20 to come into direct contact with the surface of another object.

[0027] The first portion 21 only needs to have a height necessary to determine the position of the side surface of the windshield glass 20 relative to the housing 10 and to be securely attached to the housing 10, and the height of the first portion 21 may be smaller than the height of the second portion 22. The smaller the first portion 21 is, the higher the second portion 22 can be made, so that it is possible to expand the variation in design without having to make the top surface of the exterior member 30 protrude from the outer surface of the windshield glass 20. When waterproofing is ensured by adhesive 51 between the opposing surfaces of the first portion 21 and the housing 10, the first portion 21 may have a height necessary to obtain waterproofing in addition to the above.

[0028] The second portion 22 of the windshield 20 and the surface of the exterior member 30 facing the windshield 20 are inclined relative to the first portion 21, so that the adhesive 51 located between the windshield 20 and the housing 10 is not easily visible from the outside. The facing portions of the second portion 22 and the exterior member 30 are not joined and have a minute gap (the entire second portion 22 is not in contact with the exterior member 30), but they may be in contact with each other. Also, the third portion 23 of the windshield 20 may be printed with an opaque material as a screen so that the adhesive 52 adhered to the third portion 23 is not easily visible through the windshield 20.

[0029] As described above, the housing 10 has the protrusion 14 on the inner wall surface 11. As shown in Fig. 3(b), the protrusion 14 has a uniform height in the vertical direction (size inward from the inner wall surface 11), but this is not limited to this. With respect to the position of the windshield glass 20 defined by the protrusion 14, the gap between the first portion 21 of the windshield glass 20 and the inner wall surface 11 is approximately uniform. This gap becomes a space into which the adhesive 51 is filled, and the adhesive 51 is prevented from spilling out of this gap.

[0030] The electronic watch 1 having the above-mentioned watch case 100 is manufactured in the following process. First, the viewfinder 230 is aligned and positioned relative to the watch case 100. Next, adhesives 51, 52 are applied to the bonding surfaces of at least one of the watch case 100 and the crystal 20, bonded, and cured. After that, exterior components such as the exterior member 30 are assembled, and the operating unit 300 is placed inside the watch case 100 from the back side of the watch case 100. Finally, the back cover 40 is closed with a screw or the like, and the electronic watch 1 is obtained.

[0031] As described above, the watch case 100 of this embodiment includes the housing 10, the crystal 20 with the first portion 21 of its side surface facing the housing 10, the adhesive 51 located between the housing 10 and the crystal 20 as a waterproof member that waterproofs the inside of the housing 10, and the exterior member 30. The exterior member 30 faces the second portion 22 of the side surface of the crystal 20 that is different from the first portion 21. In this way, by adjusting the position of the exterior member 30 so that not only the housing 10 but also the exterior member 30 partially faces the side of the windshield 20, the height of the watch case 100 due to the exterior member 30 that was positioned above (outside) the windshield 20 can be reduced, resulting in a more compact configuration.

[0032] Moreover, the adhesive 51 is located between the first portion 21 and the housing 10. This makes it possible to prevent water from entering deep into the gap between the windshield glass 20 and the housing 10.

[0033] Further, the second portion 22 of the windshield 20 is not entirely in contact with the exterior member 30. In other words, the presence of a gap between the second portion 22 and the exterior member 30 provides cushioning for the gap in the event of an impact such as being dropped or hit, making the windshield 20 and the housing 10 less likely to be damaged and also making it possible to prevent the adhesives 51, 52 from peeling off from the windshield 20.

[0034] The waterproof members are adhesives 51 and 52. Conventionally, to obtain waterproofness, for example, a member such as a waterproof gasket for glass was placed at a location where a glass member was to be in contact with a resin housing 10, and then the glass member was pressed and pressed (fitted). To perform this fitting operation, the housing 10 needed to have an insert metal fitting, but by using the adhesive 51 to provide a waterproof structure, it is no longer necessary to use a housing 10 with an insert metal fitting. Also, to obtain sufficient waterproofness with a waterproof gasket, for example waterproofness of 10 atmospheres or more, the thickness of the gasket cannot be ignored compared to the size of a wristwatch, and therefore the adhesives 51 and 52 can ensure waterproofness while suppressing an increase in size.

[0035] Additionally, housing 10 has protrusions 14 at a portion facing first portion 21. This allows easy and accurate positioning of windshield glass 20 relative to housing 10, so that a smooth exterior finish can be achieved simply by dropping windshield glass 20 into housing 10. Additionally, when adhesive 51 is used as the waterproofing member, the portions other than protrusions 14 become gaps occupied by adhesive 51, so that adhesive 51 is less likely to protrude from the bonding surface during pressure bonding, affecting the surroundings or spoiling the aesthetic appearance.

[0036] Furthermore, the protrusions 14 define the positional range of the side surface of the crystal 20 relative to the housing 10. This makes it possible to easily fix the crystal 20 to the housing 10 in the correct position while providing the above-mentioned gap, thereby reducing the effort involved in assembling and manufacturing the electronic watch 1 (watch case 100) and the variation between products.

[0037] Additionally, housing 10 has protrusion 14 located at a portion opposite first portion 21, and support portion 12 that supports third portion 23 along the outer edge of the inner surface of windshield glass 20. Since windshield glass 20 is supported not only on the sides but also on the inner surface, the position of windshield glass 20 can be determined more reliably and easily. Also, windshield glass 20 can be supported more stably against pressure from the outer surface side.

[0038] Furthermore, adhesive 52, which is a waterproofing member, may be located between third portion 23 and housing 10. Even in this case, sufficient waterproofing can be obtained without significantly increasing the thickness of watch case 100. In this case, the width of third portion 23 need only be the minimum width that allows for the adhesive application process.

[0039] Also, the height of the first portion 21 may be equal to or less than the width of the third portion 23. If waterproofing is achieved by the adhesive 52 attached to the third portion 23, the first portion 21 may have a minimum height required to define the side position of the crystal 20. Even if the third portion 23 does not provide waterproofing, the first portion 21 may be made lower as long as waterproofing is achieved. Therefore, by making the first portion 21 smaller than the third portion 23, it is possible to position a larger portion of the exterior member 30 on the side of the crystal 20. This allows the thickness of the watch case 100 to be reduced while maintaining waterproofing.

[0040] In addition, the second portion 22 of the windshield 20 is inclined relative to the first portion 21. As a result, the surface of the exterior member 30 facing the second portion 22 is also inclined, and the gap between the first portion 21 and the housing 10 is not directly seen from the gap between the second portion 22 and the housing 10, so that the adhesive 51 does not spoil the aesthetic appearance.

[0041] Additionally, the second portion 22 is a chamfered surface of the crystal 20. This means that the top surface of the exterior member 30 is positioned to cover the side of the crystal 20, making it possible to make the watch case 100 thinner while increasing the impact resistance of the crystal 20 to protect it. Additionally, the entire top surface of the crystal 20, which is edged by the chamfered surface, can be easily seen, ensuring a wide face area for the electronic timepiece 1 and making the display easier to see. On the other hand, the top surface of the exterior member 30 can also be made wider, allowing for a wider variety of design patterns.

[0042] Furthermore, the height of the first portion 21 may be smaller than the height of the second portion 22. By reducing the height of the first portion 21, the exterior member 30 can be more easily designed.

[0043] In addition, the outer surface of the crystal 20 is located in the same plane as the upper surface of the exterior member 30. This makes it possible to restrict the height of the exterior member 30 while still protecting the outer surface of the crystal 20, thereby reducing the thickness of the watch case 100.

[0044] In addition, the electronic watch 1 of this embodiment comprises the above-mentioned watch case 100, a display unit 200 that is positioned so as to be visible through the crystal 20 and is capable of displaying the time, and a control unit that is positioned inside the housing 10 and controls the operation of the display unit 200. With this type of electronic timepiece 1, the thickness of the electronic timepiece 1 can be reduced while still ensuring waterproofness.

[0045] The present invention is not limited to the above-described embodiment, but may be modified in various ways. For example, in the above embodiment, the first portion 21, the second portion 22, and the housing 10 are respectively bonded by the adhesives 51 and 52, but either of the adhesives 51 and 52 may be omitted. Also, instead of the adhesive 51, a waterproof gasket may be positioned between the first portion 21 and the housing 10 as a waterproof member.

[0046] In the above embodiment, the protrusion 14 is described as extending vertically in a straight line, but the present invention is not limited to this. The protrusion 14 does not have to be linear. The width of the protrusion 14 does not have to be uniform. Although the protrusion 14 is described as being located at three or more locations so as to define the side position of the windshield glass 20, the protrusion 14 may define a range wider than the outer periphery of the windshield glass 20. The protrusion 14 may be only for obtaining a gap between the windshield glass 20 and the housing 10, and may not be located at three or more locations. Alternatively, the housing 10 may not have the protrusion 14 in the first place.

[0047] Furthermore, the housing 10 does not have to have the support part 12. It is sufficient that the housing 10 and the windshield glass 20 can be fixed in an appropriate positional relationship. Even if the support part 12 is included, the support part 12 does not have to be annular, and may be, for example, a shape with a portion interrupted. In this case, the adhesive 52 may be present, but since it does not provide waterproofing, waterproofing is ensured between the first portion 21 and the housing 10.

[0048] Additionally, the second portion 22 does not have to be a flat surface with an inclination angle of 45 degrees. It may be another inclination angle, or it may be a curved surface. Alternatively, the second portion 22 may have a bent portion in the middle, in which case the side surface of the windshield glass 20 does not have to have an inclined portion. Depending on the shape of the second portion 22, the opposing surface of the exterior member 30 also has the same shape.

[0049] Also, the outer surface side of the windshield glass 20 is chamfered to form the second portion 22, but this is not limited to the above. The diameter of the windshield glass 20 may be smaller in the first portion 21 than in the second portion 22, and the side surface of the second portion 22 may be inclined so as to widen from the center toward the outside. In this case, a treatment (such as the opaque printing described above) that prevents easy visibility through the windshield glass 20 may be applied to, for example, the first portion 21 and the second portion 22.

[0050] In addition, in the above embodiment, the outer surface of the windshield 20 is described as not protruding above the top surface of the exterior member 30, but the outer surface of the windshield 20 may be located above the top surface of the exterior member 30. Also, the top surface of the exterior member 30 may clearly protrude above the outer surface of the windshield 20.

[0051] In addition, in the above embodiment, the height of first portion 21 has been described as being equal to or less than the width of third portion 23, but the height of first portion 21 may be greater than the width of third portion 23. In cases such as when third portion 23 is very narrow, the height of first portion 21 does not need to be reduced accordingly. Furthermore, the height of first portion 21 and the width of third portion 23 may be determined independently within a range in which waterproofness is obtained as described above.

[0052] In the above embodiment, the side surface of the windshield glass 20 is described as being divided into the first portion 21 and the second portion 22, but this is not limited to the above. An area that is neither of these may be included, and this area may be located between the first portion 21 and the second portion 22.

[0053] Furthermore, the electronic watch 1 of the above embodiment is not limited to a watch dedicated to the timekeeping function, but may be a multi-function watch with various functions, or may be any type of wrist-worn terminal device (smart watch) that generally displays the time. In addition, the specific configurations, positional relationships, shapes, structures, materials, and the like shown in the above embodiments can be modified as appropriate without departing from the spirit of the present invention.

[0054] Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and its equivalents. The inventions described in the claims originally attached to this application are set forth below. The claim numbers in the appended claims are the same as those in the claims originally attached to this application.

[0055] [Note] <Claim 1> A housing and a windshield glass having a first portion of a side surface facing the housing; a waterproof member located between the housing and the windshield glass to waterproof the inside of the housing; An exterior member; Equipped with The exterior member faces a second portion of the side surface of the windshield, the second portion being different from the first portion. A watch case characterized by: <Claim 2> 2. The watch case according to claim 1, wherein the waterproof member is located between the first portion and the housing. <Claim 3> 3. The watch case according to claim 1, wherein the second portion of the crystal is not entirely in contact with the exterior member. <Claim 4> 4. The watch case according to claim 1, wherein the waterproof member is an adhesive. <Claim 5> 5. The watch case according to claim 4, wherein the housing has a protrusion at a portion opposite the first portion. <Claim 6> 6. The watch case according to claim 5, wherein the protrusion defines a positional range of a side surface of the crystal relative to the case. <Claim 7> A watch case as claimed in any one of claims 1 to 6, characterized in that the housing has a protrusion located in a portion opposite the first portion, and a support portion that supports a third portion along the outer edge of the inner surface of the crystal. <Claim 8> 8. The watch case according to claim 7, wherein the waterproof member is located between the third portion and the housing. <Claim 9> 9. A watch case as claimed in claim 7 or 8, wherein the height of the first portion is equal to or smaller than the width of the third portion. <Claim 10> 10. The watch case according to any one of claims 1 to 9, wherein the second portion of the crystal is inclined relative to the first portion. <Claim 11> 11. The watch case of claim 10, wherein the second portion is a chamfered surface of the crystal. <Claim 12> 12. The watch case according to any one of claims 1 to 11, wherein the height of the first portion is smaller than the height of the second portion. <Claim 13> 13. The watch case according to any one of claims 1 to 12, characterized in that the outer surface of the crystal is located in the same plane as the upper surface of the exterior member. <Claim 14> A watch case according to any one of claims 1 to 13, A display unit that is positioned so as to be visible through the windshield and is capable of displaying information related to time; A control unit located inside the housing and controlling an operation of the display unit; An electronic watch comprising: [Explanation of symbols]

[0056] 1. Electronic Clock 10. Chassis 11 Inner wall surface 12, 13 Support part 14 Protrusion 20 Windshield 21 Part 1 22 Part 2 23 Part 3 30 Exterior materials 40 Back cover 51, 52 Adhesive 100 Watch Case 121 Protrusion 200 Display 210 Guidelines 220 signs 230 Guardboard 300 Operating Part

Claims

1. A housing and a windshield glass having a first portion of a side surface facing the housing; a waterproof member located between the housing and the windshield glass to waterproof the inside of the housing; An exterior member; Equipped with The exterior member faces a second portion of the side surface of the windshield glass, the second portion being different from the first portion. A watch case characterized by:

2. 2. The watch case according to claim 1, wherein the waterproof member is located between the first portion and the housing.

3. 3. A watch case according to claim 1, wherein the second portion of the crystal is not entirely in contact with the exterior member.

4. 4. The watch case according to claim 1, wherein the waterproofing member is an adhesive.

5. 5. The watch case according to claim 4, wherein the housing has a protrusion at a portion opposite the first portion.

6. 6. The watch case according to claim 5, wherein the protrusion defines a positional range of a side surface of the crystal relative to the case.

7. A watch case as described in any one of claims 1 to 6, characterized in that the housing has a protrusion portion located in a portion opposite the first portion, and a support portion supporting a third portion along the outer edge of the inner surface of the crystal.

8. 8. The watch case according to claim 7, wherein the waterproof member is located between the third portion and the housing.

9. 9. A watch case according to claim 7 or 8, wherein the height of said first portion is equal to or smaller than the width of said third portion.

10. A watch case as claimed in any one of the preceding claims, characterized in that the second portion of the crystal is inclined relative to the first portion.

11. 11. The watch case of claim 10, wherein said second portion is a chamfer of said crystal.

12. A watch case as claimed in any one of the preceding claims, characterized in that the height of the first portion is smaller than the height of the second portion.

13. 13. The watch case according to claim 1, wherein an outer surface of the crystal is located in the same plane as an upper surface of the exterior member.

14. A watch case according to any one of claims 1 to 13, A display unit that is positioned so as to be visible through the windshield and is capable of displaying information related to time; A control unit located inside the housing and controlling an operation of the display unit; An electronic watch comprising:

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