CH650121GA3 - - Google Patents

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Publication number
CH650121GA3
CH650121GA3 CH95683A CH95683A CH650121GA3 CH 650121G A3 CH650121G A3 CH 650121GA3 CH 95683 A CH95683 A CH 95683A CH 95683 A CH95683 A CH 95683A CH 650121G A3 CH650121G A3 CH 650121GA3
Authority
CH
Switzerland
Prior art keywords
ring
metal ring
plastic bottom
screw cover
watch
Prior art date
Application number
CH95683A
Other languages
German (de)
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 CH95683A priority Critical patent/CH650121GA3/de
Priority to DE19843405831 priority patent/DE3405831A1/en
Publication of CH650121GA3 publication Critical patent/CH650121GA3/de

Links

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
    • G04B37/225—Non-metallic cases
    • 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
    • G04B37/0008—Cases for pocket watches and wrist watches
    • 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
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • G04B37/11—Hermetic sealing of openings, joints, passages or slits of the back cover of pocket or wrist watches
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

The plastic bottom (1) of the watch casing has, in the area of the battery, an opening (7) in whose boundary wall a metal ring (4) consisting of brass and having an inner thread (6) is potted. A steel screw cover (3) which, with the interposition of a resilient O ring (2), is screwed firmly into this metal ring (4), ensures perfect water tightness of the watch housing. In this way, a very robust and virtually wear-free screw connection is formed from metallic parts of different hardness. Instead of a separate O ring it is also possible to have an annular flange formed on the plastic bottom wall bounding the hole (7), which flange is clamped between the metal ring (4) and the screw cover (3) when the latter is screwed tight. <IMAGE>
CH95683A 1983-02-21 1983-02-21 CH650121GA3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH95683A CH650121GA3 (en) 1983-02-21 1983-02-21
DE19843405831 DE3405831A1 (en) 1983-02-21 1984-02-17 Plastic casing for electronic watches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH95683A CH650121GA3 (en) 1983-02-21 1983-02-21

Publications (1)

Publication Number Publication Date
CH650121GA3 true CH650121GA3 (en) 1985-07-15

Family

ID=4199086

Family Applications (1)

Application Number Title Priority Date Filing Date
CH95683A CH650121GA3 (en) 1983-02-21 1983-02-21

Country Status (2)

Country Link
CH (1) CH650121GA3 (en)
DE (1) DE3405831A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010532A (en) * 1988-06-30 1991-04-23 Eta Sa Fabriques D'ebauches Electronic watch having an opening for receiving a battery and a cover closing this opening, and method of mass-producing this watch

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3861531D1 (en) * 1987-03-23 1991-02-21 Ebauchesfabrik Eta Ag WATCH HOUSING, UNIT FOR THE PRODUCTION THEREOF AND METHOD FOR BUILDING THIS UNIT.
JP2002341061A (en) * 2001-05-11 2002-11-27 Seiko Instruments Inc Intermediate support structure and electronic timepiece provided with it
FI117654B (en) * 2003-11-20 2006-12-29 Polar Electro Oy Electronic wrist unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879931A (en) * 1972-12-27 1975-04-29 Citizen Watch Co Ltd Electronic watch with an electronically operated sound producer
US4194351A (en) * 1976-11-26 1980-03-25 Citizen Watch Co., Ltd. Electronic timepiece
JPS5624228A (en) * 1979-08-01 1981-03-07 Nissan Motor Co Ltd Clutch housing structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3879931A (en) * 1972-12-27 1975-04-29 Citizen Watch Co Ltd Electronic watch with an electronically operated sound producer
US4194351A (en) * 1976-11-26 1980-03-25 Citizen Watch Co., Ltd. Electronic timepiece
JPS5624228A (en) * 1979-08-01 1981-03-07 Nissan Motor Co Ltd Clutch housing structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIE UHR, Band 19, Nr. 21, 11. September 1965 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010532A (en) * 1988-06-30 1991-04-23 Eta Sa Fabriques D'ebauches Electronic watch having an opening for receiving a battery and a cover closing this opening, and method of mass-producing this watch

Also Published As

Publication number Publication date
DE3405831A1 (en) 1984-08-23

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