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US 2004/0062151 A1Published application
Timepiece
AssigneeSeiko Instruments Inc.
InventorShigeru Miyama
Life of this patent
Estimating the term…
Abstract
To provide a thin type timepiece having antimagnetic performance and waterproofness. A case side wall includes therein a movement. A case back lid is fixed to the case side wall by raised portions. Further, the case back uses a two-layer clad material of a soft magnetic material and a non-magnetic material, and the soft magnetic material is disposed on the movement side of the case back lid.
Claims10
A timepiece having:
- a case containing a movement, and
- a case back lid which is fixed to the case and in which there is used a clad material of two-layers, a soft magnetic material and a non-magnetic material,
- wherein the soft magnetic material portion is disposed on the movement side.
A timepiece having:
- a case containing a movement, and
- a case back lid which is fixed to the case and in which there is used a three-layer clad material in which a soft magnetic material is provided between a 1st non-magnetic material and a 2nd non-magnetic material.
Dependencies are inferred from the claim text.