A timepiece includes: a casing; a light transmission part; a function part; and a glue adhering the light transmission part to the casing. The casing includes: a projection projecting from an inner circumferential surface and extending along a circumferential direction; and a protrusion protruding from the inner circumferential surface and determining a position of the light transmission part. A lateral surface of the light transmission part is adhered to the inner circumferential surface. A peripheral part of a bottom surface of the light transmission part is adhered to a top surface of the projection. An outer circumferential surface of the function part extends along an inner surface of the projection. A space is present in a facing region where the projection faces the function part along the light transmission part. The space is wider in a specific section including the protrusion than in a section different from the specific section.

A method for brazing a first ceramic component and a second metal alloy component, to make a structural or external timepiece element, a zirconia-based ceramic is chosen for the first component and a titanium alloy for the second component, a first recess is made inside the first component, set back from a first surface in a junction area with a second surface of the second component, braze material is deposited on this first surface and inside each recess, the second surface is positioned in alignment with the first surface to form an assembly, this assembly is heated in a controlled atmosphere to above the melting temperature of the braze material, in order to form the braze in the junction area.

An electronic device includes a display; an upper housing surrounding a periphery of the display and forming a front of the electronic device; a lower housing coupled to the upper housing and forming a rear of the electronic device; and a window waterproof member disposed in an aperture between the upper housing and the periphery of the display. The window waterproof member includes an outer sheath composed of a first material; and an inner core composed of a second material more rigid than the first material and disposed substantially in the outer sheath such that each of an upper surface and a lower surface of the inner core facing the front and the rear of the electronic device, respectively, does not protrude out of a periphery of the outer sheath.

An electronic device includes a display; an upper housing surrounding a periphery of the display and forming a front of the electronic device; a lower housing coupled to the upper housing and forming a rear of the electronic device; and a window waterproof member disposed in an aperture between the upper housing and the periphery of the display. The window waterproof member includes an outer sheath composed of a first material; and an inner core composed of a second material more rigid than the first material and disposed substantially in the outer sheath such that each of an upper surface and a lower surface of the inner core facing the front and the rear of the electronic device, respectively, does not protrude out of a periphery of the outer sheath.

An electronic device includes a display, an upper housing surrounding at least a portion of a periphery of the display, a lower housing coupled to the upper housing, and a window waterproof member disposed between at least a portion of a periphery of the display and the upper housing to seal an aperture between the upper housing and the display. The window waterproof member includes an inner core having a specific strength, and an outer sheath having a specific elasticity, and an outer peripheral surface of which contacts at least part of the upper housing and an inner peripheral surface of which contacts at least part of the display while the outer sheath surrounding at least a portion of the inner core.

The invention relates to an anodic bonding method for bonding two elements with an intermediate layer. The invention especially, but not exclusively, relates to an anodic bonding method for between a metallic element and a heterogeneous element, for example a glass, artificial sapphire or ceramic element. The specificity and aim of the present invention is to produce an assembly that is gas-tight and fluid-tight, solderless, brazing- or welder-free and without organic compound (glue). The present method has multiple industrial applications, including making it possible to attach a watch-glass, typically made of mineral glass, sapphire or transparent or translucent ceramics, to a bezel or case middle of a watch case using the anodic bonding technique.

A method for brazing a first ceramic component and a second metal alloy component, to make a structural or external timepiece element, a zirconia-based ceramic is chosen for the first component and a titanium alloy for the second component, a first recess is made inside the first component, set back from a first surface in a junction area with a second surface of the second component, braze material is deposited on this first surface and inside each recess, the second surface is positioned in alignment with the first surface to form an assembly, this assembly is heated in a controlled atmosphere to above the melting temperature of the braze material, in order to form the braze in the junction area.

A device case includes a resin case body having an opening which is disposed on a viewing face of the case body and a step which is disposed on an interior of the opening and protruding further to the interior than an inner face of the opening. The device case further includes a windproof member having an outer diameter smaller than an inner diameter of the opening of the case body and larger than an inner diameter of the step; and an adhesive section bonding and fixing the windproof member at a position to seal the opening of the case body. The adhesive section has higher flexibility than the case body.

A timepiece includes: a casing; a light transmission part; a function part; and a glue adhering the light transmission part to the casing. The casing includes: a projection projecting from an inner circumferential surface and extending along a circumferential direction; and a protrusion protruding from the inner circumferential surface and determining a position of the light transmission part. A lateral surface of the light transmission part is adhered to the inner circumferential surface. A peripheral part of a bottom surface of the light transmission part is adhered to a top surface of the projection. An outer circumferential surface of the function part extends along an inner surface of the projection. A space is present in a facing region where the projection faces the function part along the light transmission part. The space is wider in a specific section including the protrusion than in a section different from the specific section.

An electronic device is provided. The electronic device includes a frame and a display member exposed through an opening of the frame. The display member includes a first glass exposed through the opening to an outside and a second glass disposed on a surface of the first glass. The second glass includes an area formed to project beyond an edge of the first glass such that the area is positioned inside the frame.