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US 6,788,623 B2Granted
Wrist watch
AssigneeSeiko Instruments Inc.
InventorsHaruki Hiranuma, Isao Ajiro, Nobukazu Oomori
Life of this patent
Estimating the term…
Abstract
To provide a wrist watch having a small rim width while ensuring the strength of a glass rim. A movement with hands and a dial plate is assembled into a barrel from a side of a glass rim. A water-proof packing is arranged between a glass rim and the barrel. Machine screws are mounted inside the water-proof packing to fix the barrel and the glass rim together.
Claims17
A wristwatch case comprising:
- a rim member for supporting a watch glass;
- a barrel supporting the rim member by contacting an underside of the rim member and containing therein a movement and a display driven by the movement for displaying current time, the display being viewable through the watch glass;
- a first packing provided between the rim member and the barrel to maintain a waterproof seal between the rim member and the barrel;
- and screws disposed within an inner diameter of the first packing to fix the barrel and the rim member together;
- wherein a distance from an outer diameter of the display to an outer diameter of the rim member is substantially equal to (A+B+E+F), wherein A is a width of a display bearing surface of the rim member in contact with the display, B is a width of a recess in which the first packing is inserted, E is a width of a screw hole in which a respective screw is inserted, and F is a width of bearing surfaces of the rim member and the barrel in contact with each other.
2 more elements
A wristwatch case comprising:
- a first case member for housing a movement and a display;
- a second case member for supporting a watch glass through which the display is viewable;
- a first packing provided between the first case member and the second case member to maintain a waterproof seal therebetween;
- and screws disposed within an inner diameter of the first packing to fix the first and second case members together;
- wherein a distance from an outer diameter of the display to an outer diameter of the second case member is substantially equal to (A+B+E+F), wherein A is a width of a display bearing surface of the second case member in contact with the display, B is a width of a recess in which the first packing is inserted, E is a width of a screw hole in which a respective screw is inserted, and F is a width of bearing surfaces of the first and second case members in contact with each other.
2 more elements
A wristwatch case comprising:
- a first case member for housing a movement and a display;
- a second case member for supporting a watch glass through which the display is viewable;
- a first packing provided between the first case member and the second case member to maintain a waterproof seal therebetween;
- and screws disposed within an inner diameter of the first packing to fix the first and second case members together;
- wherein the display comprises a dial plate covering the movement and indicating members movable relative to the dial plate to indicate time;
- and the second case member has a dial plate bearing surface for supporting the dial plate, a female thread portion for engaging the screws, a recess for receiving the first packing, and a bearing surface in contact with the first case member.
3 more elements
A wristwatch case comprising:
- a rim member for supporting a watch glass;
- a barrel supporting the rim member by contacting an underside of the rim member and containing therein a movement and a display driven by the movement for displaying current time, the display being viewable through the watch glass;
- a first packing provided between the rim member and the barrel to maintain a waterproof seal between the rim member and the barrel;
- and screws disposed within an inner diameter of the first packing to fix the barrel and the rim member together;
- wherein the display has a dial plate covering the movement and indicating members movable relative to the dial plate to indicate time;
- and the rim member has a dial plate bearing surface for supporting the dial plate, a female thread portion for engaging the screws, a recess for receiving the first packing, and a bearing surface in contact with the barrel.
3 more elements
Dependencies are inferred from the claim text.