GB274788A - Improvements in or relating to keyless watches - Google Patents

Improvements in or relating to keyless watches

Info

Publication number
GB274788A
GB274788A GB14833/27A GB1483327A GB274788A GB 274788 A GB274788 A GB 274788A GB 14833/27 A GB14833/27 A GB 14833/27A GB 1483327 A GB1483327 A GB 1483327A GB 274788 A GB274788 A GB 274788A
Authority
GB
United Kingdom
Prior art keywords
keyless
knob
watches
relating
extension
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.)
Expired
Application number
GB14833/27A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB274788A publication Critical patent/GB274788A/en
Expired 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
    • G04B37/10—Hermetic sealing of openings, joints, passages or slits of winding stems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

274,788. Wilsdorf, H. Aug. 6, 1926, [Convention date]. Keyless mechamism. - A cylindrical sleeve 5 is provided which is slidable on an extension 3<1> of the winding knob 3 and is pressed down on to the case 1 by a spring 7 housed in a recess 6 of the knob. Alternatively, where the knob 3 has no extension such as 3<1> the sleeve may be fitted directly upon the winding stem 2.
GB14833/27A 1926-08-06 1927-06-02 Improvements in or relating to keyless watches Expired GB274788A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH274788X 1926-08-06

Publications (1)

Publication Number Publication Date
GB274788A true GB274788A (en) 1927-07-28

Family

ID=4479904

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14833/27A Expired GB274788A (en) 1926-08-06 1927-06-02 Improvements in or relating to keyless watches

Country Status (1)

Country Link
GB (1) GB274788A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592881A (en) * 1950-05-05 1952-04-15 Feurer Bros Inc Dustproof watch crown
US2773347A (en) * 1953-09-01 1956-12-11 Manuf Des Montres Universal Winding crown for timepiece movement
CN111913382A (en) * 2019-05-08 2020-11-10 奥米加股份有限公司 Stem-crown for a watertight watch case and watch case comprising such a stem-crown

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2592881A (en) * 1950-05-05 1952-04-15 Feurer Bros Inc Dustproof watch crown
US2773347A (en) * 1953-09-01 1956-12-11 Manuf Des Montres Universal Winding crown for timepiece movement
CN111913382A (en) * 2019-05-08 2020-11-10 奥米加股份有限公司 Stem-crown for a watertight watch case and watch case comprising such a stem-crown
CN111913382B (en) * 2019-05-08 2022-08-02 奥米加股份有限公司 Stem-crown for a watertight watch case and watch case comprising such a stem-crown

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