US3756017A - Watch case - Google Patents

Watch case Download PDF

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Publication number
US3756017A
US3756017A US3756017DA US3756017A US 3756017 A US3756017 A US 3756017A US 3756017D A US3756017D A US 3756017DA US 3756017 A US3756017 A US 3756017A
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US
United States
Prior art keywords
bezel
casing
fluid
glass
rod
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
Inventor
G Genta
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.)
PIQUET AND CO SA
Original Assignee
PIQUET AND CO 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
Priority to CH1772471A priority Critical patent/CH559929A/en
Application filed by PIQUET AND CO SA filed Critical PIQUET AND CO SA
Application granted granted Critical
Publication of US3756017A publication Critical patent/US3756017A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/0008Cases for pocket watches and wrist watches
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/08Hermetic sealing of openings, joints, passages or slits
    • G04B37/084Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown
    • G04B37/086Complete encasings for wrist or pocket watches without means for hermetic sealing of winding stem or crown for shaped watches
    • GPHYSICS
    • G04HOROLOGY
    • G04BMECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B37/00Cases
    • G04B37/14Suspending devices, supports or stands for time-pieces insofar as they form part of the case
    • G04B37/1486Arrangements for fixing to a bracelet

Abstract

A fluid-tight watch case comprises a back casing and a bezel including a glass connected by screws, a fluid-tight packing interposed between the back casing, bezel and glass, and a frame for supporting a watch movement. Said screws each have a head countersunk in the bezel and are screwed into a rod having a tapped bore, each rod having means for effecting rotation thereof. Each screw and rod passes through and is embedded in the fluid-tight packing and ensures fluid-tightness between the glass and the bezel, between the back casing and the bezel and between the back casing and the movement frame.

Description

United States Patent [1 1 Gcnta [451 Sept. 4, 1973 WATCH CASE [75] Inventor: Gerald Genta, Geneva, Switzerland [73] Assignee: Societe Anonyme de la Manufacture dlierlogerie Audemars, Piquet & 0)., Le Brassus, Switzerland 221 Filed: o.3o,1972

211 Appl. No.: 301,738

[30] Foreign Application Priority Data Dec. 6, l97l Switzerland 17724/71 [52] US. Cl 58/90 R [51] Int. Cl. G04b 37/08 [58] Field of Search 58/88 C, 90 R [56] References Cited UNITED STATES PATENTS 3,640,065 2/1972 Lederrey et al 58/90 R FOREIGN PATENTS OR APPLICATIONS 808,340 5/1951 Germany 58/90 R 305,774 3/1955 Switzerland 523/90 R Primary ExaminerGeorge H. Miller, Jr. Attorney-Robert E. Burns et al.

[57] ABSTRACT A fluid-tight watch case comprises a back casing and a bezel including a glass connected by screws, a fluidtight packing interposed between the back casing, bezel and glass, and a frame for supporting a watch movement. Said screws each have a head countersunk in the bezel and are screwed into a rod having a tapped bore, each rod having means for effecting rotation thereof. Each screw and rod passes through and is embedded in the fluid-tight packing and ensures fluidtightness between the glass and the bezel, between the back casing and the bezel and between the back casing and the movement frame.

1 Claim, 3 Drawing Figures mum ma 3.756017 sntzumz T fi FIGJ

1 WATCH CASE This invention relates to watch cases.

It is an object of the present invention to provide a fluid-tight watch case of particularly simple and adequate construction and of aesthetic appearance.

This fluid-tight watch case has a back casing and a bezel including a glass joined together by screws, a fluid-tight packing interposed between this back casing, bezel and glass and a frame intended to support the movement of the watch.

Numerous constructions of this type are known. However, in known constructions, the back casing directly compresses a thin packing of general toric shape. The drawback of these constructions is that all parts of the watch outside at this joint, and in particular between the bezel and the back casing, may be filled with water, which, in the course of time, may oxidise these parts.

The main object of the watch case according to the invention is to ensure complete fluidtightness of all the parts of the watch case, the other objects being a new aesthetic shape and particularly easy assembly.

This fluid-tight watch case is characterised by the fact that the screws each have a head countersunk in the bezel and that each is screwed into a rod with a tapped bore, this rod comprising means for effecting its rotation and each screw and rod being embedded in the fluid-tight packing which ensures fluid-tightness between the glass and the bezel between the back casing and the bezel and between the back casing and the movement frame.

An embodiment of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a plan view of a watch case;

FIG. 2 is a cross-section taken along the line lIll of F IG. 1; and

FIG. 3 is a cross-section taken along line llllll of FIG. 1.

The watch-case shown in the drawing has a back casing 1 provided with lugs or loops 2 for the attachment of a strap or bracelet. This back casing 1 includes an annular bearing surface 3 for a fluid-tight packing 4.

This packing 4 when in a non-compressed state has a generally square-shaped cross-section with a deformable projection at each corner, as indicated in broken lines in FIGS. 2 and 3.

This watch case also has a bezel 5 which mounts a glass 6, made preferably of a hard inorganic material such as hardened glass or corundum. This mounting is ensured by a ledge 7 in the glass 6 co-operating with the edge ofthe bezel 5.

Rods 9 with tapped bores 10 threadably receiving screws 8 connect the bezel 5 to the back casing l and ensure compression of the fluid-tight packing 4. The screws 8 and 9 pass through and are embedded in the packing 4. The screws 8 have a non-circular head 11, embedded in the bezel 5; they are, for example, hexagonal so as not to rotate when the rods 9 are screwed thereon. In order to permit rotation of the rods 9, they are provided with a slot 9a to receive a screwdriver. For the same purpose, any other known means my be provided in the head of the rod 9 to permit its rotation (lmbus or Philips slots for example).

The fluid-tight packing 4 ensures that the case is completely fluid-tight, since it acts between the bezel 5 and the casing back 1 at A, between the bezel 5 and the glass 6 at B and between the casing back 1 and a casing ring 12 for a watch movement 13 at C.

The watch case according to the invention can be easily constructed, is effective even at high pressures and has an aesthetic appearance.

What is claimed is:

l. A fluid-tight watch case comprising a back casing and a bezel including a glass connected by screws, a fluid-tight packing interposed between the back casing, bezel and glass, and a frame for supporting a watch movement, said screws each having a head countersunk in the bezel and being screwed into a rod having a tapped bore, each rod having means for effecting rotation thereof, and each screw and rod passing through and being embedded in the fluid-tight packing, said fluid-tight packing forming means for ensuring fluidtightness between the glass-and the bezel, between the back casing and the bezel and between the back casing and the movement frame.

* II l

Claims (1)

1. A fluid-tight watch case comprising a back casing and a bezel including a glass connected by screws, a fluid-tight packing interposed between the back casing, bezel and glass, and a frame for supporting a watch movement, said screws each having a head countersunk in the bezel and being screwed into a rod having a tapped bore, each rod having means for effecting rotation thereof, and each screw and rod passing through and being embedded in the fluid-tight packing, said fluid-tight packing forming means for ensuring fluid-tightness between the glass and the bezel, between the back casing and the bezel and between the back casing and the movement frame.
US3756017D 1971-12-06 1972-10-30 Watch case Expired - Lifetime US3756017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CH1772471A CH559929A (en) 1971-12-06 1971-12-06 Waterproof watch case.

Publications (1)

Publication Number Publication Date
US3756017A true US3756017A (en) 1973-09-04

Family

ID=4427602

Family Applications (1)

Application Number Title Priority Date Filing Date
US3756017D Expired - Lifetime US3756017A (en) 1971-12-06 1972-10-30 Watch case

Country Status (7)

Country Link
US (1) US3756017A (en)
JP (1) JPS5228668B2 (en)
CH (2) CH559929A (en)
DE (1) DE2255013C3 (en)
FR (1) FR2162355B1 (en)
GB (1) GB1394880A (en)
IT (1) IT968694B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397566A (en) * 1982-05-04 1983-08-09 Montres Rado S.A. Wrist-watch casing
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal
CH685035GA3 (en) * 1993-05-13 1995-03-15 Vacuum Chronometer Corp Watch case
US7144151B2 (en) 2003-11-20 2006-12-05 Polar Electro Oy Electronic wrist device
US20090073816A1 (en) * 2007-09-14 2009-03-19 Seiko Epson Corporation Timepiece
US9329359B2 (en) 2014-09-09 2016-05-03 Mon Spencer Owyang Mirror assembly for a vehicle
WO2018163083A1 (en) * 2017-03-07 2018-09-13 Titan Company Limited A dial for a ceramic timepiece and a method for manufacturing
USD847662S1 (en) * 2017-10-17 2019-05-07 Richemont International Sa Watch case

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039756A1 (en) * 1980-10-22 1982-05-27 Bifora Uhren Gmbh Watertight slim-line watch case - has seals between both watch glass frame and watch back and centre part
CH700383B1 (en) 2009-02-13 2013-03-15 Raphael Fleischhauer Watch case.
JP6292110B2 (en) * 2014-12-11 2018-03-14 カシオ計算機株式会社 Case unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808340C (en) * 1949-06-23 1951-07-12 Guenther Fischer Compensation watchcase
CH305774A (en) * 1952-10-03 1955-03-15 Kunz Hans Tight watch case.
US3640065A (en) * 1969-02-17 1972-02-08 Schlup & Cie Sa Watertight watchcase for wristwatches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE808340C (en) * 1949-06-23 1951-07-12 Guenther Fischer Compensation watchcase
CH305774A (en) * 1952-10-03 1955-03-15 Kunz Hans Tight watch case.
US3640065A (en) * 1969-02-17 1972-02-08 Schlup & Cie Sa Watertight watchcase for wristwatches

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397566A (en) * 1982-05-04 1983-08-09 Montres Rado S.A. Wrist-watch casing
US4626108A (en) * 1984-06-07 1986-12-02 Gebruder Junghans Gmbh Wristwatch with seal
CH685035GA3 (en) * 1993-05-13 1995-03-15 Vacuum Chronometer Corp Watch case
US7144151B2 (en) 2003-11-20 2006-12-05 Polar Electro Oy Electronic wrist device
US20090073816A1 (en) * 2007-09-14 2009-03-19 Seiko Epson Corporation Timepiece
US7961558B2 (en) * 2007-09-14 2011-06-14 Seiko Epson Corporation Timepiece
US9329359B2 (en) 2014-09-09 2016-05-03 Mon Spencer Owyang Mirror assembly for a vehicle
WO2018163083A1 (en) * 2017-03-07 2018-09-13 Titan Company Limited A dial for a ceramic timepiece and a method for manufacturing
USD847662S1 (en) * 2017-10-17 2019-05-07 Richemont International Sa Watch case

Also Published As

Publication number Publication date
JPS4865966A (en) 1973-09-10
FR2162355B1 (en) 1976-08-13
DE2255013C3 (en) 1974-10-03
CH1772471A4 (en) 1974-09-30
FR2162355A1 (en) 1973-07-20
CH559929B5 (en)
DE2255013B2 (en) 1974-03-21
IT968694B (en) 1974-03-20
GB1394880A (en) 1975-05-21
CH559929A (en) 1975-03-14
DE2255013A1 (en) 1973-06-14
JPS5228668B2 (en) 1977-07-28

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