CH660278GA3 - Process for the manufacture of a watch case - Google Patents

Process for the manufacture of a watch case Download PDF

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Publication number
CH660278GA3
CH660278GA3 CH34885A CH34885A CH660278GA3 CH 660278G A3 CH660278G A3 CH 660278GA3 CH 34885 A CH34885 A CH 34885A CH 34885 A CH34885 A CH 34885A CH 660278G A3 CH660278G A3 CH 660278GA3
Authority
CH
Switzerland
Prior art keywords
manufacture
watch case
steel
case
galvanically
Prior art date
Application number
CH34885A
Other languages
French (fr)
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
Application filed filed Critical
Priority to CH34885A priority Critical patent/CH660278GA3/en
Publication of CH660278GA3 publication Critical patent/CH660278GA3/en

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

Process for the manufacture of a watch case machined from a quenchable steel. The case is quenched and its surface is then covered, galvanically, with a layer of hard chromium. Each of the operations following the quenching operation is performed at a temperature below 140 DEG C in order to reduce the hardness of the steel as little as possible. <IMAGE>
CH34885A 1985-01-25 1985-01-25 Process for the manufacture of a watch case CH660278GA3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH34885A CH660278GA3 (en) 1985-01-25 1985-01-25 Process for the manufacture of a watch case

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH34885A CH660278GA3 (en) 1985-01-25 1985-01-25 Process for the manufacture of a watch case

Publications (1)

Publication Number Publication Date
CH660278GA3 true CH660278GA3 (en) 1987-04-15

Family

ID=4184966

Family Applications (1)

Application Number Title Priority Date Filing Date
CH34885A CH660278GA3 (en) 1985-01-25 1985-01-25 Process for the manufacture of a watch case

Country Status (1)

Country Link
CH (1) CH660278GA3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4726478A1 (en) * 2024-10-10 2026-04-15 Richemont International SA Black-colored decorative thin tialc coating

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH12163A (en) * 1896-04-27 1896-11-30 R Kuehn Acetylene gas apparatus
FR2302350A1 (en) * 1975-02-28 1976-09-24 Plansee Metallwerk OBJECTS FOR COURTYARD USE

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH12163A (en) * 1896-04-27 1896-11-30 R Kuehn Acetylene gas apparatus
FR2302350A1 (en) * 1975-02-28 1976-09-24 Plansee Metallwerk OBJECTS FOR COURTYARD USE

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOURNAL SUISSE D'HORLOGERIE, no. 9/10, 1973, pages 202-206; L. CHOLLET et al.: "Structure des couches déposées par réactions thermochimiques en phase gazeuse" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4726478A1 (en) * 2024-10-10 2026-04-15 Richemont International SA Black-colored decorative thin tialc coating

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