JPS57108784A - Case structure of wristwatch - Google Patents

Case structure of wristwatch

Info

Publication number
JPS57108784A
JPS57108784A JP18677480A JP18677480A JPS57108784A JP S57108784 A JPS57108784 A JP S57108784A JP 18677480 A JP18677480 A JP 18677480A JP 18677480 A JP18677480 A JP 18677480A JP S57108784 A JPS57108784 A JP S57108784A
Authority
JP
Japan
Prior art keywords
constitution
wristwatch
outer diameter
fixed
engaging
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
JP18677480A
Other languages
Japanese (ja)
Inventor
Shinichiro Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 by Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP18677480A priority Critical patent/JPS57108784A/en
Publication of JPS57108784A publication Critical patent/JPS57108784A/en
Pending legal-status Critical Current

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
    • G04B37/08—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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To reduce the outer diameter of a back of the watch case, by providing a stage part for engaging the back to a middle and ensuring the bayonet engage between the middle and the back. CONSTITUTION:A middle 1 has a positioning stage part 1a for a supporting ring 3 at its upper part, and a back engaging part 1b having substantially equal inner diameter to the part 1a protrudes on the case body 1. The middle 1 and the back 2 are fixed to each other by the bayonet engage method through the insertion and turning action. In such constitution, the outer diameter of the cover 2 can be reduced compared with the middle when the back is pressed and fixed to the side wall of the middle.
JP18677480A 1980-12-26 1980-12-26 Case structure of wristwatch Pending JPS57108784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18677480A JPS57108784A (en) 1980-12-26 1980-12-26 Case structure of wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18677480A JPS57108784A (en) 1980-12-26 1980-12-26 Case structure of wristwatch

Publications (1)

Publication Number Publication Date
JPS57108784A true JPS57108784A (en) 1982-07-06

Family

ID=16194381

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18677480A Pending JPS57108784A (en) 1980-12-26 1980-12-26 Case structure of wristwatch

Country Status (1)

Country Link
JP (1) JPS57108784A (en)

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