Watch Component And Watch

Patent metadata

Field	Value
Publication number	US-2025068126-A1
Application number	US-202418813553-A
Country	US
Kind code	A1
Filing date	Aug 23, 2024
Priority date	Aug 25, 2023
Publication date	Feb 27, 2025
Grant date	—

Abstract

A watch component includes a base material, a protective film formed on a surface of the base material by wet plating, and a decorative film formed on a surface of the protective film by dry plating, wherein the decorative film is a multilayer film in which a plurality of layers including a first layer in contact with the protective film are stacked, and a main material constituting the first layer is the same as a main material constituting the protective film.

First claim

What is claimed is:

1 . A watch component comprising:
a base material; a protective film formed on a surface of the base material by wet plating; and a decorative film formed on a surface of the protective film by dry plating, wherein the decorative film is a multilayer film in which a plurality of layers including a first layer in contact with the protective film are stacked, and a main material constituting the first layer is the same as a main material constituting the protective film.

2 . The watch component according to claim 1 , wherein
the main material constituting the protective film and the first layer is Ni.

3 . The watch component according to claim 1 , wherein
the decorative film includes a second layer in contact with the first layer and a third layer and subsequent layers stacked on the surface side of the second layer, and a main material constituting the second layer is a material having high adhesiveness to the first layer and a reflectance more than or equal to a predetermined value.

4 . The watch component according to claim 3 , wherein
the main material constituting the second layer is Cr.

5 . The watch component according to claim 3 , wherein
the third layer and subsequent layers include a layer formed of a metal material and a layer formed of an oxide or a fluoride.

6 . The watch component according to claim 5 , wherein
the layer formed of a metal material is composed of a material containing at least one selected from a group consisting of Cr, Au, Ag, and Rh.

7 . The watch component according to claim 5 , wherein
the layer formed of an oxide or a fluoride is composed of a material containing at least one selected from a group consisting of Ta 2 O 5 , SiO 2 , TiO 2 , Al 2 O 3 , Zro 2 , Nb 2 O 5 , HfO 2 , NasAl 3 F 14 , Na 3 AlF 6 , AlF 3 , MgF 2 , CaF 2 , BaF 2 , YF 3 , LaF 3 , CeF 3 , and NdF 3 .

8 . The watch component according to claim 1 , wherein
a top coat film formed on a surface of the decorative film is included.

9 . The watch component according to claim 1 , wherein
the watch component is a dial or a component of a movement.

10 . A watch comprising the watch component according to claim 1 .

Assignees

• Seiko Epson Corp

Inventors

• Fuji Tsubasa

Classifications

• C23C28/345

  with at least one oxide layer · CPC title

• C23C28/34

  including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates · CPC title

• C23C28/32

  including at least one pure metallic layer · CPC title

• G04B19/10

  Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial {(cases for special purposes, e.g. ring or button watches G04B37/12; indicating means with special effects G04B45/00)} · CPC title

• G04B19/12 Primary

  Selection of materials for dials or graduations {markings} · CPC title