JPS56108876A - Silver plated exterior decorative parts for watch and their manufacture - Google Patents

Silver plated exterior decorative parts for watch and their manufacture

Info

Publication number
JPS56108876A
JPS56108876A JP1224780A JP1224780A JPS56108876A JP S56108876 A JPS56108876 A JP S56108876A JP 1224780 A JP1224780 A JP 1224780A JP 1224780 A JP1224780 A JP 1224780A JP S56108876 A JPS56108876 A JP S56108876A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
silver
watch
surface
decorative parts
fine powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP1224780A
Inventor
Naotake Ando
Akira Kitagawa
Shotaro Shimizu
Akikimi Takahashi
Original Assignee
Citizen Watch Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE: To enhance the durability of silver plated layers by plating exterior decorative parts for a watch with silver contg. ceramic fine powder and forming protective coats of hard carbon by vapor deposition to increase the adhesion of the hard carbon coats.
CONSTITUTION: Ceramic fine powder of alumina, silica, titanium oxide or the like showing superior adhesion to a carbon film and gelatin as protective colloid are suspended in a silver plating bath. Using the resulting plating bath the surface of watch case 1 or the like is coated with silver plated layer 2, and part of ceramic fine powder 3 is exposed to the surface in a burying process. The surface of layer 2 is then coated with hard carbon film 4 by vapor depositing carbon. By this method the adhesion of film 4 to layer 2 is enhanced, and a fine appearance assuming a silver white color peculiar to silver plating is maintained on exterior decorative parts for a watch over a long time.
COPYRIGHT: (C)1981,JPO&Japio
JP1224780A 1980-02-04 1980-02-04 Silver plated exterior decorative parts for watch and their manufacture Pending JPS56108876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1224780A JPS56108876A (en) 1980-02-04 1980-02-04 Silver plated exterior decorative parts for watch and their manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1224780A JPS56108876A (en) 1980-02-04 1980-02-04 Silver plated exterior decorative parts for watch and their manufacture

Publications (1)

Publication Number Publication Date
JPS56108876A true true JPS56108876A (en) 1981-08-28

Family

ID=11800029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1224780A Pending JPS56108876A (en) 1980-02-04 1980-02-04 Silver plated exterior decorative parts for watch and their manufacture

Country Status (1)

Country Link
JP (1) JPS56108876A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879807A (en) * 1981-10-21 1983-05-13 Rca Corp Amorphous carbonaceous thin-film
JPS58126972A (en) * 1982-01-22 1983-07-28 Sumitomo Electric Ind Ltd Diamond coated sintered hard alloy tool
JPS59166671A (en) * 1983-03-11 1984-09-20 Mitsubishi Metal Corp Surface-coated tool member excellent in wear resistance
JPS59170262A (en) * 1983-03-14 1984-09-26 Mitsubishi Metal Corp Surface-coated tool member with superior wear resistance
JPS6059993U (en) * 1983-09-30 1985-04-25
JPS60114572A (en) * 1983-11-25 1985-06-21 Mitsubishi Metal Corp Sintered hard alloy member having very hard coating layer
JPS61261480A (en) * 1985-05-13 1986-11-19 Toshiba Tungaloy Co Ltd Diamond coated member
JPH05323048A (en) * 1992-05-21 1993-12-07 Orient Watch Co Ltd Exterior part of timepiece and manufacture thereof

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879807A (en) * 1981-10-21 1983-05-13 Rca Corp Amorphous carbonaceous thin-film
JPS58126972A (en) * 1982-01-22 1983-07-28 Sumitomo Electric Ind Ltd Diamond coated sintered hard alloy tool
JPS627267B2 (en) * 1982-01-22 1987-02-16 Sumitomo Electric Industries
JPS59166671A (en) * 1983-03-11 1984-09-20 Mitsubishi Metal Corp Surface-coated tool member excellent in wear resistance
JPS6210300B2 (en) * 1983-03-11 1987-03-05 Mitsubishi Metal Corp
JPS59170262A (en) * 1983-03-14 1984-09-26 Mitsubishi Metal Corp Surface-coated tool member with superior wear resistance
JPS6210301B2 (en) * 1983-03-14 1987-03-05 Mitsubishi Metal Corp
JPS6059993U (en) * 1983-09-30 1985-04-25
JPS60114572A (en) * 1983-11-25 1985-06-21 Mitsubishi Metal Corp Sintered hard alloy member having very hard coating layer
JPS6324066B2 (en) * 1983-11-25 1988-05-19 Mitsubishi Metal Corp
JPS61261480A (en) * 1985-05-13 1986-11-19 Toshiba Tungaloy Co Ltd Diamond coated member
JPH0542508B2 (en) * 1985-05-13 1993-06-28 Toshiba Tungaloy Co Ltd
JPH05323048A (en) * 1992-05-21 1993-12-07 Orient Watch Co Ltd Exterior part of timepiece and manufacture thereof

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