Watch external part, manufacturing method for watch external part, and watch

Patent metadata

Field	Value
Publication number	US-9841732-B2
Application number	US-201514606156-A
Country	US
Kind code	B2
Filing date	Jan 27, 2015
Priority date	Jan 30, 2014
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

A watch external part of the present invention is equipped with a substrate and a coating formed using an aerosol deposition method. The coating is selectively provided at a portion of a site observable in a state with the watch external part incorporated in a watch. The substrate is made of a material including one type or two or more types selected from a group consisting of sapphire glass, quartz, and plastic. The watch external part is further equipped with a ground layer having at least one layer between the substrate and the coating.

First claim

What is claimed is:

1. A watch external part comprising:
a substrate made of a material including one type or two or more types selected from a group consisting of sapphire glass, quartz, and plastic;
a coating formed using an aerosol deposition method; and
a ground layer having at least one layer between the substrate and the coating, the ground layer including a layer made of TiN,
the coating being selectively provided at a portion of a site observable through the substrate and the ground layer in a state with the watch external part on a watch, and
the coating being made of a metal material and directly disposed on the ground layer.

2. The watch external part according to claim 1 , wherein the substrate is transparent.

3. The watch external part according to claim 1 , further comprising
an antireflective coating disposed on a surface side opposite to a surface of the coating facing the substrate.

4. A watch comprising the watch external part according to claim 1 .

5. A watch external part comprising:
a substrate made of a material including one type or two or more types selected from a group consisting of sapphire glass, quartz, and plastic;
a coating formed using an aerosol deposition method; and
a ground layer having at least one layer between the substrate and the coating, the ground layer includes a layer made of TiN,
the coating being selectively provided at a portion of a site observable through the substrate and the ground layer in a state with the watch external part on a watch, and
the coating being made of a metal oxide and/or a metal nitride and directly disposed on the ground layer.

6. A manufacturing method for a watch external part, the method comprising:
preparing a substrate;
forming a ground layer having at least one layer on the substrate after the preparing of the substrate; and
forming a coating directly on the ground layer using an aerosol deposition method after the forming of the ground layer on the substrate,
the coating being selectively provided at a portion of a site observable through the substrate and the ground layer in a state with the watch external part on a watch, and
the coating being made of a metal material and directly disposed on the ground layer.

7. The manufacturing method for a watch external part according to claim 6 , further comprising
forming an antireflective coating after the forming of the coating.

8. A watch comprising the watch external part manufactured using the manufacturing method according to claim 6 .

9. A watch bezel comprising:
a substrate made of a material including one type or two or more types selected from a group consisting of sapphire glass, quartz, and plastic;
a coating formed using an aerosol deposition method; and
a ground layer having at least one layer between the substrate and the coating, the ground layer including a layer made of TiN,
the coating being selectively provided at a portion of a site observable through the substrate and the ground layer in a state with the watch bezel on a watch, and
the coating being made of a metal material and directly disposed on the ground layer.

Assignees

• Seiko Epson Corp

Inventors

• Ito Yoshifumi

Classifications

• G04B45/0076

  Decoration of the case and of parts thereof, e.g. as a method of manufacture thereof (specially shaped G04B45/0061, G04B45/0069; decoration with inscriptions and pictures G04B45/0084; construction of the hands G04B19/042; decoration by adding extra pieces to the clockwork G04B47/04; colouring by treatment of the surface, e.g. by oxidation C25D) · CPC title

• G04B19/042

  Construction and manufacture of the hands; arrangements for increasing reading accuracy (hands with illumination G04B19/305; specially shaped hands, e.g. figures or pictures G04B45/0061; clockwork in the hands G04B45/043; invisible drive of the hands G04B45/046) · CPC title

• G04B19/12 Primary

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

• G04B37/226

  coated with a metallic layer · CPC title

• G04B39/006

  out of wear resistant material, e.g. sapphire · CPC title