Watch, in particular a pocket watch

Horology: time measuring systems or devices – Cases – With front or back details

Reexamination Certificate

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Details

C368S319000

Reexamination Certificate

active

06170982

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to a watch, in particular a pocket watch.
2. Description of Related Art
Wristwatches have become largely indispensable even though they have drawbacks such as reduced wearing comfort and bad protection of the watch, in particular of the crystal, against shocks and scratches. For these reasons other types of watches continue to enjoy a certain popularity which does not diminish. Pocket watches in particular, also called fob watches, have been a craze on a par with the fashion of the waistcoat or vest. Generally, the present invention concerns all watches intended to be worn, or carried with you, other than on your wrist, for example brooch-watches, lapel-watches, pendant-watches, ch{circumflex over (a)}telaine-watches, clip-watches, etc.
These watches generally comprise a movement accommodated in a watch-case as well as, in the case of watches of the hunter type, a cover permitting the protection of the crystal and/or the dial of the watch. Such a cover is necessary to protect the watch from dust and from scratches in particular when it is being transported in a pocket with other objects, possibly sharp or blunt. Likewise known are wristwatches provided with a cover; the invention equally applies to this type of wristwatch. Such a cover is frequently decorated or ornamented with fine workmanship.
The watch is set to the time, and in the case of a mechanical watch, wound, by means of a winding stem passing through the watch-case. This winding stem is frequently connected to the locking means for the cover in such a way that the cover can be opened by manipulating the winding stem, for example by pushing the winding crown. At least one spring element is generally provided to obtain an automatic and rapid opening of the cover as soon as the locking means have been released by actuation of the winding stem.
Owing to the weight of the cover, the spring element must be relatively thick and thus bulky. The locking means are thus likewise bulky and moreover relatively complex. Consequently, it is difficult to obtain good tightness in this portion of the watch around the winding stem. Therefore one has often had to be content with producing watches which were not protected against humidity.
SUMMARY OF THE INVENTION
One object of the present invention is thus to propose an improved watch, in particular a watch having a well-balanced combination of advantageous features such as tightness, cost price, solidity, simplicity of construction, aesthetics, etc.
This object is attained according to the invention with a watch comprising a middle, a movement accommodated in said middle, a crystal, a protective cover for said crystal, a time-setting stem for the movement, a water-tight enclosure permitting said movement to be accommodated and protected, locking means for said cover, said locking means being able to be released by manipulating said stem so as to open the cover, the locking means being outside said water-tight enclosure, said stem passing through said water-tight enclosure through an aperture, a water-tight joint being provided in said aperture.


REFERENCES:
patent: 222235 (1879-12-01), Breese
patent: 298615 (1884-05-01), O'Hara
patent: 469660 (1892-02-01), erbeau
patent: 780287 (1905-01-01), hardy
patent: 3765165 (1973-10-01), Vial
patent: 0 388 138 (1990-09-01), None

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