CH709067B1 - Clock with barometric pressure sensor. - Google Patents

Abstract

The invention relates to a watch (1) comprising: a housing (3, 9, 45) comprising a central part (3), the housing (3, 9, 45) being supported on a first side by glass (45) and on a first side the second side is closed by a bottom (9), a movement (5), time indication elements (53), a barometric pressure sensor (13) located between the movement (5) and the bottom (9) and a pressure indicator (40, 41) kinematically connected to the barometric pressure sensor (13). According to the invention, the barometric pressure sensor (13) is arranged substantially coaxially with the work (5), and the pressure indicator (40, 41) is located closer to the bottom (9) than at least part of the work (5), at least a part of Pressure gauge (40, 41) through the glass (45) around the periphery of the movement (5). The modular clock design of the factory and an independent pressure sensor simplifies the manufacture, assembly, maintenance and replacement of spare parts.

Description

description

Technical Field The present invention relates to the field of watches. In particular, it relates to watches comprising a barometric pressure sensor.

Background of the Invention Many different clocks are known in the art which incorporate a barometric pressure sensor to indicate the atmospheric pressure and / or altitude. For example, DE 68 038, DE 63 878, CH 376 438, CH 324 756, CH 433 127, WO 13 079 810, US 2 716 327, CH 696 047, FR 2 209 093, CH 4 225, CH 328 502 and US Pat CH 1 425 161 various types of watches incorporating barometric pressure sensors, usually in the form of an aneroid capsule. In each of these designs, the pressure sensor and its display are integrated to varying degrees with the movement. Among other things in the CH 4 225, the pointer for the pressure sensor to the time hands is coaxial with an indicator on its own scale on the same dial. This requires a considerable amount of integration of both the timing and the pressure measurement systems on the watch, which leads to complications in the design and difficulties in maintenance and replacement of one or the other subsystem.

An attempt of a more modular design of such a clock is disclosed in CH 696 047. In this watch, a shaft mounted in the housing ring transmits the movement from the pressure sensor around the movement to a display conventionally and coaxially installed with the time hands. Although this arrangement allows the use of a standard work, the transmission of movement around the movement adds some complexity and makes it difficult to mount the watch.

An object of the invention is thus to overcome at least some of the aforementioned disadvantages of the prior art and thereby propose a completely modular clock with a simple design and easy installation.

Summary of the Invention More particularly, the invention relates to a timepiece comprising a housing comprising a central part, the housing being closed on a first side by a glass and on a second side by a floor, a movement incorporated in the Although the work is preferably a self-winding mechanical work, although this may not necessarily be the case, time display members, which are kinematically connected to the factory and located between the factory and the glass, have a barometric pressure sensor located between them Plant and the ground is located, and a pressure gauge, which is kinematically connected to the atmospheric pressure sensor.

According to the invention, the barometric pressure sensor is arranged substantially coaxially with the work, and the pressure gauge is closer to the ground than at least part of the work, with at least part of the pressure gauge being visible around the edge of the work through the glass, i. between the work and the middle part is visible.

Consequently, a completely modular watch design is proposed which can use standard works and standard pressure sensors. Since the plant and the pressure sensor can be made independent by this construction, manufacturing, assembly, maintenance and replacement of spare parts are considerably simplified as compared to prior art designs.

Advantageously, the movement is carried in the housing by a housing ring which is located between the movement and the central part, the housing ring being at least partially transparent. For example, the housing ring may be made at least in part (i.e., partially or completely) from a transparent material (e.g., glass, plexiglass, sapphire), or may comprise at least one opening in an otherwise opaque housing ring, e.g. is made of metal, carbon fibers or the like, simply be partially transparent. This opening may for example be at least one peripheral slot. The pressure gauge is thus at least partially visible through the housing ring.

Advantageously, the glass and the bottom are hermetically sealed by means of sealing rings relative to the central part, and in the middle part of a ventilation pipes is provided, which connects the interior of the housing with the outside area. The vent tubes include a semi-permeable membrane that allows air to pass through the vent tubes, but blocks the passage of water therethrough. Thus, the pressure sensor may be exposed to ambient air pressure without the risk of moisture, dust, etc., penetrating the interior of the housing.

Advantageously, a hollow crown is arranged which surrounds an outer end of the ventilation tubes, wherein the crown comprises a sealing arrangement which is arranged so as to allow a selective hermetic sealing of the ventilation tubes. The housing can thus be completely hermetically sealed by the user to improve the watertightness of the watch, for example in the event that the watch should be submerged in water. The ventilation tubes may e.g. by screwing the crown onto the central part, either hermetically sealed, either directly or via a tube attached to the central part, the tube comprising a first seal arranged to seal the vent tubes to the tube, the said tube being sealed by the tube Crown includes a second seal, which is arranged to seal the crown relative to the tube.

Alternatively, the glass and the bottom are hermetically sealed relative to the central part by means of sealing rings, and at least one opening is provided in the middle part. This at least one opening is closed by a semipermeable membrane which allows air to pass through the opening but blocks the passage of water through the opening.

Advantageously, a hollow crown is arranged which surrounds an outer end of a shaft which passes through a tube provided in the central part in a conventional manner in the vicinity of the semipermeable membrane. At least one of the central portion and the crown includes a seal assembly arranged to allow selective hermetic sealing of the opening. As before, the housing can thus be completely hermetically sealed by the user to improve the watertightness of the watch, for example if the watch should be submerged in water. This sealing can be achieved by the tube comprising a first seal arranged to seal the shaft with respect to the tube, and the central part comprising a second seal disposed in a corrugated groove provided therein. This second seal is arranged to selectively seal the crown with respect to the central portion so as to prevent water from reaching the semi-permeable membrane.

Advantageously, the pressure indicator comprises a pointer which consists at least partially of carbon fiber and preferably comprises a carbon fiber strand. For example, the pointer may consist of a single carbon fiber strand. By using such materials, the pressure gauge is made as light as possible, thereby reducing its inertia and friction. The pressure gauge can thus respond better to changes in ambient pressure, making the pressure gauge more accurate.

Advantageously, an adjustable scale ring is provided, wherein the adjustable scale ring is rotatable relative to the central part. Thus, a scale provided on the adjustable scale ring can be calibrated by the user with respect to, for example, a fixed scale provided on a stationary scale ring for the environmental conditions. The adjustable scale ring is advantageously attached to the barometric pressure sensor so that the barometric pressure sensor rotates therewith, for example in the event that the adjustable scale ring is calibrated at the time of manufacture for the barometric pressure sensor. The barometric pressure sensor and the adjustable scale ring may be mounted on a rotatable annular ring with the annular ring arranged to be rotated by a user. The annular ring is advantageously inserted between at least part of the barometric pressure sensor and the adjustable scale ring. Consequently, the components in question are incorporated in the watch as a single unit.

Advantageously, the annular ring comprises a crown gear toothing which selectively engages a drive kinematically connected to the crown via the vent tubes or shaft such that in at least one axial position of the crown, rotation of the crown causes rotation of the annular ring. eg in its fully extended position, causes. Consequently, the user can easily adjust the adjustable scale ring.

Advantageously, a plurality of fixed axial positions of the crown are defined by a spring plate comprising a lateral slot which engages the vent tubes or the shaft to be translationally displaceable with the vent tube or shaft and with a plurality of notches to interact, which are provided in the middle part. This achieves an extremely easy positioning of the crown.

Advantageously, the annular ring comprises a crown gear, wherein the crown gear teeth extending in the direction of the housing ring on which at least one lever spring is installed such that it extends in the direction of the crown gear teeth. The system for positioning the annular ring is thus extremely compact and simple.

Advantageously, the at least one lever spring is arranged to press the annular ring on a corresponding shoulder, which is provided on the floor. The annular ring and the other components attached thereto can thus be carried in the housing alone by the shoulder and the lever springs, so that no further fastening means are needed.

Advantageously, the adjustable scale ring comprises a scale indicative of the pressure, and wherein a fixed scale ring is disposed on the central portion, the fixed scale ring comprising a scale indicative of the height. Consequently, both altitude and pressure can be displayed.

Brief Description of the Drawings Further details of the invention will now be described with reference to the figures. Show it:

Fig. 1 is an exploded view of a clock according to the invention;

2 shows a cross-sectional view of a clock according to the invention;

Figure 3 is a perspective view of the relationship between the movement, the housing ring and the annular ring and the crowns, separated from the other components of the clock according to the invention.

4 is a perspective view of the relationship between the pressure sensor, the annular ring and the Kalibrierkrone, separated from the other components of the inventive clock.

Fig. 5 is a perspective view of the system for positioning the calibration crown;

6 shows a front view of a clock according to the invention from the perspective of a user;

7 shows an exploded view of a further variant of a ventilation crown;

FIG. 8 is a cross-sectional view of a timepiece incorporating the crown of FIG. 7. FIG.

EMBODIMENTS OF THE INVENTION In the following description, the terms "upper" and "above" indicate directions toward the glass 45; The terms "lower" and "below" indicate directions to the bottom 9. Fig. 1 shows an exploded view of the construction of a timepiece 1 according to the invention. Fig. 2 shows in cross-section the structure of the timepiece with the calibrating crown 29 in its innermost position, this cross-section going along a diameter of the timepiece along the axis of the tube 31 goes.

The clock 1 comprises a central part 3, in which a work 5 is installed by means of a housing ring 7. As usual, there is a dial 8 above the movement 5 (clearly visible in Fig. 2). The middle part 3 is closed on its underside by a bottom 9 and on its front side by glass 45 (not shown in Fig. 1, see Fig. 2) to form a housing. It should be noted that other conventional features, such as horns for attaching a bracelet, have not been illustrated. A fixed scale ring 2 with markings indicating the height is provided on the front side of the middle part 3 and held by the glass 45, the fixed scale ring 2 being kept sandwiched between the glass 45 and a shoulder 51 of the middle part 3. The fixed scale ring 2 can be positioned with pins or screws or can be glued. Alternatively, a scale may be provided on a practical surface of the middle part 3.

The work 5 can be of any conventional type, be it mechanical, electromechanical or digital, and in the case of a mechanical work can be either automatic or manual. As usual, time displays, e.g. Pointer 53 or discs, between the factory 5 and the glass 45 is provided. As the invention is put into practice today, the plant 5 is a mechanical movement with automatic winding. The work 5 comprises a conventional elevator and / or an adjusting shaft 6 which passes through an opening (not visible in Fig. 1) in the central part 3 and terminates in a crown 4, as is conventional and not further described must become.

The housing ring 7 is provided with openings 11 which are visible to the user through the glass 45 and which allow the user to see a pressure gauge, as will be described more clearly below. The openings 11 are shown here in the form of elongated circumferential slots, but of course other shapes are possible. It is also possible that the work 5 is simply held by the housing ring 7 at a certain number of separate points, the openings 11 being formed in this housing as cut-outs between the work 5 and the outer area of the housing ring 7.

Alternatively, the housing ring 7 may be partially or entirely made of a transparent material, such as glass, Plexiglas, sapphire or the like, with or without openings.

The housing ring 7 is attached to the central part 3 by means of a plurality of screws 35, here are three of them, however, any practical number can be used which is inserted from the bottom of the housing ring 7 and into corresponding threaded holes (not shown), which are provided in the middle part 3, are screwed. The screws 35 also each carry a lever spring 37 on the lower side of the housing ring 7, whose function will be clarified below.

Below the factory 5, between the factory 5 and the bottom 9 and coaxial with the factory 5, a barometric pressure sensor 13 of any practical type is installed, preferably of a mechanical type comprising an anero-idkapsel. The pressure sensor 13 is provided with a pointer 40, 41 (see Fig. 2) extending below the movement 5 towards the periphery of the central part, and of which at least a part can be seen through the openings 11 as it is will be clarified below.

Advantageously, the pressure sensor 13 is installed in a ring-shaped ring 15 which is rotatably mounted in the housing, by means of screws 19 which pass through corresponding holes 21 in the annular ring 15 and in corresponding threaded holes (not visible) in an adjustable scale ring 23 are screwed. The annular ring 15, the adjustable scale ring 23 and the pressure sensor 13 are attached to each other and thus rotate together. The adjustable dial ring 23 is located on the upper side of the annular ring 15 and carries a scale, e.g. for the atmospheric pressure, measured in hPa / mbar, bar or atmospheres, and visible through the openings 11 or through the casing ring 7 itself in the casing, which is constructed from a completely transparent material and over which at least a part 41 of a pressure gauge 40, 41 is such that it indicates the pressure inside the housing. Thus, the scale provided on the adjustable scale ring 23 is calibrated for the pressure sensor 13 and the pressure gauge at the time of manufacture. Alternatively, an adjustable scale ring 23 may be integrally integrated with a coronary ring 15, the scale being printed directly on the coronal ring 15. It should be noted that the pressure gauge 40 extends beyond the work 5 over most of its length, with only its end between the work 5 and the middle part 3 through the openings 11 in the housing ring 7 or through the housing ring 7 itself in the Housing can be seen, which is constructed of a completely transparent material.

The annular ring 15 comprises a crown gear teeth 25, which is located in the vicinity of the periphery of the annular ring 15 and extends in the direction of the housing ring 7. Alternatively, any other convenient type of gearing may be used. Further, and as only seen in Figure 2, the annular ring 15 may include openings 26 to allow free passage of air through the annular ring 15 to ensure that there is no pressure gradient within the housing.

The annular ring 15 is supported by a shoulder 17 on the bottom 9 and is pressed against the shoulder 17 by lever springs 37 which act at right angles to the plane of the annular ring 15 and exert a force in the direction of the ground. The lever springs 37 also serve to position the annular ring 15 so as to prevent undesired rotation thereof.

Due to this construction, the removal of the pressure sensor 13 can be carried out together with the adjustable scale ring 23 and the annular ring 15 by simply unscrewing the bottom 9 and then the assembly is taken, consisting of the pressure sensor 13, the adjustable scale ring 23 and the annular ring 15, without removing further fasteners. The work 5 can then be removed together with the housing ring 7 by simply unscrewing the screws 35, which are easily accessible to the technician.

The crown gear teeth 25 selectively engage with a drive 27 which is kinematically connected to the calibration crown 29 via a hollow vent tube 31 which is slidably mounted in a tube 33 hermetically attached to the central part 3 to the user to allow the angular position of the adjustable scale ring 23 to be adjusted. It should be noted that in Fig. 2, the lower part of the Kalibrierkrone 29, which is located below the horizontal dotted line, is mapped in a different angular position than the upper part of the Kalibrierkrone 29, which is located above the horizontal dot-dash line.

The Kalibrierkrone 29 is rotatably attached to the ventilation pipes 31 and includes an internal thread, so that it can be screwed onto a corresponding external thread, which is provided on the tube 33. Further, the outer end of the ventilation pipes 31 is closed by a semi-permeable membrane 39 which allows air to penetrate through the membrane 39, but prevents the entry of water. Such semipermeable membranes are made, for example, from expanded PTFE (ePTFE). In addition to the semipermeable membrane 39, a spacer 42 is provided which serves to hold the membrane 39 in place and also to ensure that when the crown is in the open position there is enough space between the membrane 39 and the inside of the crown 29 is present to allow the passage of air. A spring plate 43 serves to position the vent tubes 31 in a plurality of fixed axial positions, as will be described in more detail below.

In the view of Fig. 2, the Kalibrierkrone 29 is in its screwed position and ensures that the housing is hermetically sealed. For this purpose, a first seal 61 is provided on the tube 33 between the tube 33 and the vent tubes 31, and a second seal 63 is provided on the Kalibrierkrone 29 between the tube 33 and the Kalibrierkrone 29 which is arranged such that the seals 61, 63 are compressed when the calibration crown 29 is screwed onto the tube 33.

To make a pressure and / or height reading, the Kalibrierkrone 29 is unscrewed from the tube 33, which is retracted to its fixed intermediate position (not shown). In this position, the drive 27 does not engage with the crown gear teeth 25 and can run free. The second seal 63 is withdrawn with the calibration crown 29 and is no longer in contact with the tube 33. Thus, air can flow between the tube 33 and the inner wall of the calibration crown 29 and into or out of the vent tube 31 via the membrane 39, thereby causing the pressure between the interior of the housing and the atmosphere compensates. The pressure sensor 13 is thus exposed to the ambient conditions and shows the atmospheric pressure on the adjustable scale ring 23 and the height on the fixed scale ring 2, assuming that the indication of variations in atmospheric pressure has been properly calibrated. Nevertheless, the interior of the housing is protected from the ingress of water through the semipermeable membrane 39, although the membrane 39 can not withstand significant immersion depth in water.

To calibrate the altitude readout, the calibration crown 29 is retracted to its outermost fixed position (not shown). In this position, the drive 27 engages with the crown gear teeth 25 of the annular ring 15 a. A rotational movement of the calibration crown 29 in this phase causes the annular ring 15 to rotate about its axis, thereby rotating the pressure sensor 13 and the adjustable scale ring 23 together with the pressure indicator 40, 41.

Therefore, the user of the timepiece can adjust the position of the display 40 and its corresponding pointer 41 in relation to the height marks provided on the fixed scale ring 2 so as to adapt to the variations of the atmospheric pressure. For example, if the user knows his current altitude, he can retract the calibration crown 29 to its outermost position and adjust the position of the annular ring 15 until the display 41 is at the correct height. After the user has taken these measures, he pushes the calibration crown 29 back to its intermediate position so that the measurement of altitude and / or pressure can continue in real time. Alternatively, it may push the calibration crown 29 back to its innermost position and screw it back onto the housing, thereby restoring the hermetic seal of the housing.

It should also be noted that although the calibration crown 29 and the setting crown 4 in the present embodiment are separate, different crowns, it is also possible to integrate the calibration function with the setting and / or winding function, so that a single Krone performs all functions. This can be achieved, for example, by using the ventilation pipes 31 as a hollow adjusting and / or winding shaft, or by arranging a further adjusting / winding shaft which runs along the center of the ventilation pipes 31. Another possibility would be to divide the combined functions of the calibration crown 29 into two separate, separate crowns. One for ventilation and the other for calibration.

Fig. 3 illustrates the relationship between the housing ring 7, the work 5, the annular ring 15 and the crowns 4, 29 in more detail. Other components of the timepiece, including the central portion 3, the pressure sensor 13 and the adjustable scale ring 23 have been omitted in this figure for clarity.

The work 5 is carried as usual by the housing ring 7. The actuating shaft 6 is covered by a solid part 7 a of the housing ring 7, which is located between adjacent openings 11. As described above, the screws 35 attach the housing ring 7 to the central part 3 and also carry the lever springs 37, one of which can be seen in FIG. The distal end of the lever spring 37 angularly positions the annular ring 15 by engagement between two adjacent teeth of the crown gear teeth 25. As the lever springs 37 apply force to the crown gear teeth 25 toward the ground, they force the annular ring 15 onto the shoulder 17 of the crown gear Bottom 9 (see Figs. 1 and 2) and thus hold it both axially and angularly in place.

FIG. 4 illustrates more clearly the relationship between the pressure sensor 13, the annular ring 15, and several parts of the annular ring adjustment mechanism depicted here in its inactive position.

The pressure sensor 13 is installed in the annular ring 15 as described above. In this figure, the pressure gauge 40, 41 can be clearly seen. The pressure gauge 40, 41 includes a pointer 40 that terminates in a pointer tip 41. In order to minimize the inertia of the pressure indicator 40, 41, the pointer 40 and / or the pointer tip 41 may be made of carbon fiber. In particular, the pointer may comprise or may even consist of a single carbon fiber filament which is as narrow as possible but still retains the necessary rigidity and other mechanical properties. The pointer 40 is bent slightly upward so that the pointer tip 41 indicates on the inclined surface of the adjustable scale ring 23. In this figure, the crown 29 and the shoot 27 are shown in their inactive position, i. pushed as far as possible into the middle section. In this position, the drive 27 does not engage the crown gear teeth 25 of the annular ring 15, but retracting the crown to its outermost position causes the drive 27 to engage the crown gear teeth 25 to allow the user to control the angular position of the crown Adjust rings 15, the pressure sensor 13 and the adjustable scale ring 23 relative to the other components of the clock.

FIG. 5 depicts the arrangement used in the present watch for positioning the calibration crown 29. As can be seen in Fig. 1, the spring plate 43 comprises a lateral slot 44 which engages in the ventilation tubes 31, so as to translate translationally. In the present example, the spring plate 43 intervenes between the drive 27 and a shoulder provided on the innermost end of the ventilation tubes 31 (see FIG. 2). Alternatively, the lateral slot 44 could engage in a corrugated groove provided in this tube 31. The spring plate 43 is further provided with side elastic wings 65 which engage with the notches 67a, 67b, 67c provided in the central part 3 on both sides of the ventilation tubes 31 to the Kalibrierkrone 29, the ventilation tubes 31 and the drive 27 in to position each of their 3 fixed positions. If a larger number of fixed positions are needed, a larger number of notches may simply be provided in the middle part 3.

Further, the spring plate 43 includes a guide member 69 which lies on the underside of the fixed scale ring 2 to hold the spring plate 43 in place.

The spring plate 43 has three fixed positions, namely the innermost position 43a (shown in solid line), the middle position 43b (dark "transparent" shown) and the outermost position 43c (bright "transparent" shown). In each of these positions 43a, 43b, 43c, the vent tubes 31 are held in place by the engagement of the side resilient wings 65 in the respective notches 67a, 67b, 67c.

To advantageously avoid fatigue of the lateral elastic wings 65, when the crown 29 is fully screwed, the spring plate 43 is pushed further into the center of the middle part, so that the lateral elastic wings 65 are not in contact with the notch 67 a and thus not be charged.

Of course, this positioning arrangement for the Kalibrierkrone 29 is perfectly suited to be used with a conventional actuating and / or Aufziehkrone, and is not limited to use with a ventilation tubes. In the case of application of the spring plate 43 to a conventional wind-up and / or crown in combination with a shaft, the lateral slot 44 would engage in a groove provided on the shaft or between a shoulder provided on the shaft is, and eg a drive, which is provided on the shaft, intervene.

FIG. 6 depicts a front view of a timepiece 1 according to the invention. In addition to the numerous features previously described, which need not be described again, this figure clearly shows how the adjustable dial ring 23 and the pointer tip 41 can be seen through the openings 11 in the housing ring 7, and like the pointer tip 41 at the same time indicates the atmospheric pressure on the adjustable scale ring 23 and the height on the fixed scale ring 2. When the adjustable scale ring 23 is rotated on the basis of the calibration crown 29, its scale marks obviously move in relation to the height marks on the fixed scale ring 2. Further, it is apparent from Fig. 6 that the control shaft 6 is made invisible to the user of the watch It extends from the work 5 to the crown 4 below a portion 7a of the housing ring 7, which is located between two adjacent openings 11.

Fig. 7 and 8 form in an exploded view and in the Ouerschnitt, each in its screwed position, a further variant of the Kalibrierkrone 29 from. The remaining features of the clock 1 are essentially unchanged, with the exception of the center part 3 in the immediate vicinity of the calibration crown 29, and their details must therefore not be repeated here. For example, it should be noted that the spring plate 43 is applied exactly to the embodiment of FIGS. 7 and 8 as in FIG. 5.

In the variant of Fig. 7 and 8, the ventilation pipes 31 has been replaced by a shaft 71, at one end of the drive 27 is installed by means of a screw 73. The opposite end of the shaft 71 is fastened as usual in a recess on the inside of the crown 29, e.g. by pressing, welding, soldering, gluing or the like. The shaft 71 passes through the tube 33, which is fixed to the middle part 3 in a conventional manner and sealed against it by a first seal 61. Since the shaft 71 is solid, passages 75 are provided through the central portion 3 directly adjacent to the tube 33 to allow the passage of air. In order to prevent the ingress of water, dust, etc., the passages 75 are closed by the semipermeable membrane 39 formed in the shape of a crown. The membrane 39 comprises a coronary effective membrane area 39a, through which air can penetrate, but moisture and dust can not penetrate, and is connected with an adhesive 77 to the middle part 3 on a suitably arranged surface.

In the screwed-in position of the Kalibrierkrone 29, in which an external thread, which is provided on the tube 33 cooperates with an internal thread, which is provided on the inside of the Kalibrierkrone 29, the crown 29 with respect to the central part 3 by means of a second Seal 63, which is located in a corrugated groove 79 which is provided on the central part 3 and which contacts a chamfered surface 81, which is suitably provided on the Kalibrierkrone 29, hermetically sealed. The Kalibrierkrone 29 is thus hermetically sealed from the central part 3, and the membrane 39 is not exposed to the ambient conditions.

When the Kalibrierkrone 29 is unscrewed from the tube 33 and is retracted to its intermediate position, the second seal 63 no longer touches the tapered surface 81, and therefore air can penetrate around the outside of the Kalibrierkrone 29, and can in the interior of the Housing over the effective membrane portion 39 a of the diaphragm 39 and the passages 75 penetrate, whereby the pressure inside and outside the housing is balanced so that the barometric pressure sensor 13 can indicate the ambient pressure and / or the height. As in the case of the embodiment of FIGS. 1 to 6, the drive 27 in this position does not engage with the crown gear teeth 25 of the annular ring 15.

As in the case of the embodiment of Figs. 1-6, when the calibration crown 29 is retracted to its outermost position, the drive 27 engages the crown gear teeth 25 of the annular ring 15 and allows the annular ring 15 to be rotated by the user to calibrate the height indication.

Of course, as before, the calibration crown 29 may be arranged to perform conventional winding and positioning functions and combine all of these functions in a single crown. The necessary changes are obvious to the person skilled in the art.

It should be noted that it is not essential that one or the other of the previously described venting crown systems, each of the crown 29, the vent tubes 31 and the semi-permeable membrane 39 (see FIGS. 1 and 2) or the crown 29 , the shaft 71, the openings 75 and the semi-permeable membrane 39 (see Figs. 7 and 8) are used with the previously described coaxial clock construction. They may obviously be used in combination with any other arrangement of a pressure sensor in a watch case, or even in a watch that does not incorporate a pressure sensor, in case there is a need for which it would be beneficial to reduce the pressure inside and outside the watch To compensate clock housing without allowing the ingress of water. In other words, the calibration crown system, in its most general form, can be used in a watch comprising a housing formed of a central part, which on a first side of a glass and on a second side of a glass

Claims (20)

Bottom is closed, wherein the Kalibrierkronensystem comprises a ventilation tube which passes through the central part and a semi-permeable membrane, and a screw crown, which, when it is screwed, is arranged such that it hermetically seals the ventilation tubes comprises. Of course, other details as described above, such as the location of the tube 33, the spacer 42, the apertures 75 and the seals 61, 63 of the two variants, may be incorporated therein. In this case, the crown could be, for example, an actuating and / or Aufziehkrone, wherein the ventilation pipes performs the task of adjusting and / or Aufziehwelle. In addition, the arrangements previously described for adjusting the adjustable dial ring 23 may be applied to other watches, the other arrangements from the pressure sensor 13, and / or an indication of measurements other than pressure / altitude, such as temperature, humidity , Time and so on. claims A watch (1) comprising: - a housing (3, 9, 45) comprising a central part (3), said housing (3, 9, 45) being supported on a first side by a glass (45) and on a first side second side is closed by a bottom (9); - A work (5) which is arranged in the housing (3, 9, 45); - time display members (53) kinematically connected to the work (5) and located between the work (5) and the glass (45); - A barometric pressure sensor (13) located between the plant (5) and the bottom (9); - A pressure display (40, 41) which is kinematically connected to the barometric pressure sensor (13); characterized in that the barometric pressure sensor (13) is arranged substantially coaxially with the work (5), and that the pressure indicator (40, 41) is closer to the bottom (9) than at least part of the work (5) at least part of the pressure gauge (40, 41) can be seen through the glass (45) around the periphery of the movement (5). 2. Clock (1) according to the preceding claim, wherein the movement (5) in the housing (3, 9, 45) is supported by a housing ring (7) extending between the movement (5) and the central part (3). is located, wherein the housing ring (7) is at least partially transparent, whereby the visibility of the pressure indicator (40, 41) is made possible. 3. watch (1) according to claim 2, wherein the housing ring (7) comprises at least one opening (11), wherein the opening (11) is preferably at least one circumferential slot. 4. watch (1) according to one of claims 1 to 3, wherein the glass (45) and the bottom (9) relative to the central part (3) by means of sealing rings (47,49) are hermetically sealed, and wherein a ventilation pipes (31 ) is provided in the central part, which connects the inner region of the housing (3, 9, 45) with the outer region of the housing (3, 9, 45), wherein the ventilation tubes (31) comprises a semi-permeable membrane (39), the passage of air through the vent tubes (31), but blocks the passage of water through the vent tubes (31). A watch (1) according to claim 4, further comprising a hollow crown (29) disposed surrounding an outer end of the vent tubes (31), the crown (29) comprising a seal assembly arranged to receive a seal Selective hermetic sealing of the ventilation pipes (31) permits. 6. watch (1) according to claim 5, wherein the ventilation tubes (31) is hermetically sealed by the fact that the crown (29) on the central part (3) either directly or via a tube (33) which at the central part (3) is fastened, wherein the tube (33) comprises a first seal (61) which is arranged to seal the ventilation tubes (31) with respect to the tube (33), the crown (29) having a second seal (63). arranged to selectively seal the crown (29) with respect to the tube (33). 7. watch (1) according to one of claims 1 to 3, wherein the glass (45) and the bottom (9) relative to the central part (3) by means of sealing rings (47, 49) are hermetically sealed, and wherein at least one opening ( 75) is provided in the central part, the at least one opening (75) being closed by a semipermeable membrane (39) allowing the passage of air through the opening (75) but restricting the passage of water through the opening (75 ) is blocked. The watch (1) according to claim 7, further comprising a hollow crown (29) disposed surrounding an outer end of a shaft (71) passing through a tube (33) fixed to the central part (3) wherein at least one of the central portion (3) and the crown (29) comprises a sealing arrangement arranged to permit selective hermetic sealing of the opening (75). A watch (1) according to claim 8, wherein the tube (33) comprises a first seal (61) arranged to seal the shaft (71) from the tube (33), the central part (3) being a second one Seal (63) disposed in a corrugated groove (79) provided on the central part (3), the second seal (63) being arranged to selectively surround the crown (29) with respect to the central part (3) seal. 10. Clock (1) according to one of claims 1 to 9, wherein the pressure indicator (40,41) comprises a pointer (40) which consists at least partially of carbon fiber and preferably comprises a carbon fiber strand. 11. Clock (1) according to one of claims 1 to 10, wherein an adjustable scale ring (23) is provided, wherein the adjustable scale ring (23) in relation to the central part (3) is rotatable. 12. Clock (1) according to claim 11, wherein the adjustable scale ring (23) on the barometric pressure sensor (13) is mounted such that the barometric pressure sensor (13) rotates with it. A watch (1) according to claim 12, wherein said barometric pressure sensor (13) and said adjustable scale ring (23) are mounted on a rotatable annular ring (15), said annular ring (15) being arranged to be rotated by a user to become. 14. Clock (1) according to claim 13, wherein the annular ring (15) between at least part of the barometric pressure sensor (13) and the adjustable scale ring (23) is inserted. A watch (1) according to any one of claims 5 to 9 and one of claims 12 to 14, wherein the annular ring (15) comprises a crown gear (25) which selectively engages a drive (27) which is kinematically engaged with the crown (29) via the ventilation tubes (31) or shaft (71) is connected such that in at least one axial position of the crown (29) rotation of the crown (29) causes rotation of the annular ring (15). A timepiece (1) according to claim 15, wherein a plurality of axial positions of the crown (29) are defined by a spring plate (43) comprising a lateral slot (44) formed in the vent tubes (31) or in the shaft (71) to be translationally displaceable with the vent tube (31) or the shaft (71) and to cooperate with a plurality of notches (67a, 67b, 67c) provided in the central part (3). 17. Clock (1) according to claim 2 and one of claims 15 or 16, wherein the crown gear (25) extends in the direction of the housing ring (7), and wherein at least one lever spring (37) on the housing ring (7) is installed and extends toward the crown gear (25). 18. Watch (1) according to claim 17, wherein the at least one lever spring (37) is arranged to push the annular ring (15) on a corresponding shoulder (17) provided on the bottom (9). A watch (1) according to any one of claims 11 to 14, wherein the adjustable scale ring (23) comprises a scale indicative of pressure, and wherein a fixed scale ring (2) is disposed on the central portion (3), the fixed scale ring includes a scale that indicates the height. A watch (1) according to any one of the preceding claims, wherein the movement (5) is a self-winding mechanical movement.