US3792576A - Watertight watch - Google Patents

Watertight watch Download PDF

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Publication number
US3792576A
US3792576A US00330960A US3792576DA US3792576A US 3792576 A US3792576 A US 3792576A US 00330960 A US00330960 A US 00330960A US 3792576D A US3792576D A US 3792576DA US 3792576 A US3792576 A US 3792576A
Authority
US
United States
Prior art keywords
caseband
watch case
set forth
glass
watertight
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 - Lifetime
Application number
US00330960A
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English (en)
Inventor
M Ratajski
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.)
Omega Louis Brandt and Frere SA
Original Assignee
Omega Louis Brandt and Frere SA
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 Omega Louis Brandt and Frere SA filed Critical Omega Louis Brandt and Frere SA
Application granted granted Critical
Publication of US3792576A publication Critical patent/US3792576A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G04B37/0008—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
    • G04B37/084—Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown

Definitions

  • ABSTRACT A watertight watch case of the two piece type wherein the caseband and back are formed as a single unit with a separate bezel.
  • the bezel includes a glass snap integrally formed therewith and is assembled to the caseband and back unit with a interposed packing that is subjected to radial compression between the bezel acting on one surface, and the glass and caseband and back unit acting on the opposite surface. The arrangement assures resistance to waterand at the same time maintains the assembly of the watch case.
  • an object of the present invention is to provide -a watertight watchcase of the two-piece type in which the caseband and back are formed as a single unit with a separate bezel, wherein the bezel provides a glass snap integrally formed therewith and is assembled to the caseband and back unit by means of an interposed packing subjected to radial compression between the bezel acting on one surface. thereof and the glass, and caseband and-back unit acting on an opposite surface thereby to assure water resistance while maintaining the assembly of the watch case.
  • FIGS. 1, 2 and 3 show'partial vertical cross sections of three forms in which the invention may be executed.
  • FIGS. 4'and 5 show partial vertical cross sections of further variants particularly with respect to the packlng.
  • the assembly in FIG. 1, the assemblyincludes a watch movement 1 conventionally supported within an integral caseband-back unit'2.
  • a glass 3' bears on, and is spaced from a dial 4 by a ring flange 5 whereby in the'complete assembly the movement is maintained in the axial position as shown. Rotation of the movement is prevented by the provision of a winding stem (not shown) project ing through the side of the casing.
  • Bezel 6 has its interior periphery so shaped as to provide a cut away portion surmounted by a snap. The cut away portion serves to accommodate a packing 7.
  • Two or more holes 11 are pierced through the caseband portion of unit 2 and spaced apart symmetrically around the periphery. Such holes are concealed from above by the bezel when the watch is assembled and serve a purpose to be subsequently explained.
  • the movement 1 provided with dial 4'and hands (not shown) is introduced into the caseband back unit 2.
  • the winding stem (not shown) is then inserted thereby to establish and fix the exact circumferential position.
  • the ring flange 5 is put in place and thereafter packing 7.
  • Glass 3 is placed within packing 7 and positioned to bear on ring flange 5 which itself in view of permitted tolerances will bear lightly on the dial 4 thus fixing the movement axially.
  • Bezel 6 is then pressed on to the packing 7 thus assuringboth water resistanc and the maintenance of the assembly.
  • Disassembly is effected by proceeding in the reverse order tothat given above and in this connection the holes 11 provide an important advantage in removing the bezel.
  • a suitable tool (not shown) provides a-support having a number of studs corresponding in diameter, number, and spacing with holes 11. The assembly is placed so that the studs pass through holes 11 and bear on under-surface 12 of bezel 6. It is then only necessary to bear down on the glass 3 or on a suitable portion of unit 2 in order to force off the bezel.
  • the principle difference from FIG. 1 resides in the fact that the dial 4 is formed as a soup plate having an extractor flange 14 squeezed between the internal face 15 of glass 3 and the upper edge 16 of the caseband back unit 2, thereby fixing equally the movement 1 and at the same time avoiding the need for the ring flange 5 shown in the FIG. 1 embodiment.
  • FIG. 3 the arrangement is similar to that of FIG. 1, but as an additional measureto ensure water resistance an O-ring packing 17 is placed between the internal face 15 of the glass 3 and the upper edge 16 of the caseband back unit 2. Lateral creep of the O-ring towards the interior of the casing is prevented by the ring flange 5, and creep toward the exterior is prevented by packing 7.
  • FIGS. 4 and 5 are basically similar respectively to FIGS. 1 and 2, but show different forms which the packing 7 mighttake in respect of such embodiments.
  • FIG. 4 shows an interposed packing 7 having a stepped form, the inner surface of the inwardly stepped upper portion of which bears against the ring flange 5.
  • the slight increase in complexity provides greater sealing security.
  • FIG. 5 is similar to FIG. 2 but uses an interposed packing 7 having an L-shaped cross-section.
  • the lower portion of this packing is adapted to be received and retained by a notch cut around the external periphery of the upperportion of the caseband back unit. This arrangement facilitatesorderly disassembly by retaining the glass and watch dial in position during removal of the bezel.
  • a watertight watch case of the two-piece type in which the caseband and back are formed as a single unit with a separate bezel and wherein the bezel includes a glass snap integrally formed therewith and is assembled to the caseband and back unit by means of an interposed packing subjected to radial compression between the bezel acting on one surface thereof and the glass, and a caseband and back unit acting on an opposite surface thereby to assure water resistance while maintaining the assembly of the watch case, said caseband including a plurality of symmetrically disposed holes extending from the back of the caseband proximate the perphery thereof through to a matching surface of the bezel whereby introduction of a matching tool facilitates disassembly of the watch case..
US00330960A 1972-03-06 1973-02-09 Watertight watch Expired - Lifetime US3792576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1030972A GB1386101A (en) 1972-03-06 1972-03-06 Watertight watch

Publications (1)

Publication Number Publication Date
US3792576A true US3792576A (en) 1974-02-19

Family

ID=9965499

Family Applications (1)

Application Number Title Priority Date Filing Date
US00330960A Expired - Lifetime US3792576A (en) 1972-03-06 1973-02-09 Watertight watch

Country Status (7)

Country Link
US (1) US3792576A (xx)
JP (1) JPS491271A (xx)
CH (2) CH171873A4 (xx)
DE (1) DE2309810A1 (xx)
FR (1) FR2174854B3 (xx)
GB (1) GB1386101A (xx)
IT (1) IT979028B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986328A (en) * 1975-09-30 1976-10-19 Parks-Cramer (Great Britain), Ltd. Method and apparatus for pneumatically removing fiber and trash waste on open-end spinning machines
EP1367464A2 (en) * 2002-05-30 2003-12-03 Seiko Instruments Inc. Timepiece

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5526223B2 (xx) * 1973-12-28 1980-07-11
JPS5732468Y2 (xx) * 1978-04-28 1982-07-16
CH700383B1 (de) 2009-02-13 2013-03-15 Raphael Fleischhauer Uhrengehäuse.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT553423A (xx) *
CH239570A (fr) * 1944-04-12 1945-10-31 Schmitz Otto Boîtier de montre étanche, de forme ronde.
CH339580A (fr) * 1959-01-27 1959-06-30 Graber Edmond Procédé de fabrication d'un fond de boîte de montre étanche et fond obtenu par ce procédé
CH387550A (fr) * 1963-02-05 1964-10-15 Enicar S A Boîte de montre étanche

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015698A1 (xx) * 1968-08-15 1970-04-30 Roamer Watch Co

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT553423A (xx) *
CH239570A (fr) * 1944-04-12 1945-10-31 Schmitz Otto Boîtier de montre étanche, de forme ronde.
CH339580A (fr) * 1959-01-27 1959-06-30 Graber Edmond Procédé de fabrication d'un fond de boîte de montre étanche et fond obtenu par ce procédé
CH387550A (fr) * 1963-02-05 1964-10-15 Enicar S A Boîte de montre étanche

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986328A (en) * 1975-09-30 1976-10-19 Parks-Cramer (Great Britain), Ltd. Method and apparatus for pneumatically removing fiber and trash waste on open-end spinning machines
EP1367464A2 (en) * 2002-05-30 2003-12-03 Seiko Instruments Inc. Timepiece
EP1367464A3 (en) * 2002-05-30 2005-04-20 Seiko Instruments Inc. Timepiece

Also Published As

Publication number Publication date
IT979028B (it) 1974-09-30
FR2174854A1 (xx) 1973-10-19
GB1386101A (en) 1975-03-05
FR2174854B3 (xx) 1976-02-20
DE2309810A1 (de) 1973-09-13
CH171873A4 (xx) 1975-12-31
JPS491271A (xx) 1974-01-08
CH577206B5 (xx) 1976-06-30

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