Timepiece with disk-shaped dial module

Abstract

The invention relates to a watch (100), in particular a wristwatch, with a case (110), a movement (120), in particular a mechanical movement and a dial module (200), which dial module (200) comprises at least a first, in particular ring-shaped, display element (210), and a second, disc-shaped display element (220), each of which is connected to the drive of the movement (120) in a torque-transmitting manner and can be driven to rotate about its central axis (ZA), and a mask (240) provided with recesses (241, 243) which is fixedly connected to the case (110), wherein the first display element (210), the second display element (220) and the mask (240) are arranged concentrically around the central axis (ZA) of the movement (120), and the mask (240) is arranged above the first display element (210) with respect to the central axis (ZA).The object of the present invention is to eliminate the disadvantages of the prior art and to create a dial module that enables straightforward technical implementation and expands the design possibilities of clocks and disc clocks. This object is achieved by forming the mask (240) in an annular disc shape with a central recess (241) whose diameter corresponds to the diameter of the second display element (220) and with an annular surface (242) concentrically surrounding the central recess (241), wherein the annular surface (242) has at least one peripheral recess (243) which interacts with a marking (211), in particular a single marking, of the first display element (210) such that, during a complete rotation of the first display element (210) about the central axis (ZA) of the clockwork (120), the peripheral recess (243) coincides with the marking (211) of the first display element (210) exactly once.

Description

[0001] The invention relates to a timepiece, in particular a wristwatch, comprising a case, a movement, in particular a mechanical movement, and a dial module. The dial module has at least a first display element and a second, disc-shaped display element, each of which is connected to the drive of the movement in a torque-transmitting manner and can be driven in rotation about its central axis. The dial module also has a mask provided with recesses, which is firmly connected to the case, in particular to a movement retaining ring of the case. The first display element, the second display element, and the mask are arranged concentrically around the central axis of the movement, and the mask is arranged above the first display element with respect to the central axis of the movement. The invention also relates to a corresponding dial module for a timepiece.

[0002] In conventional, analog clocks, especially wristwatches, the second, minute, and hour hands each rotate around the clock's central axis, so that the current time can be read off the dial located below the hands and provided with corresponding numbering or scaling based on their position. The hands, dial, and movement are housed in the watch case, which traditionally consists of the case back located at the bottom along the central axis, the watch crystal located at the top, and the middle section in between. The dial is connected to the watch case in a rotationally fixed manner, while the hands move around the central axis at their respective speed relative to the watch case or the dial. For this purpose, they are connected to the so-called second spindle, the minute tube, also known as the quarter tube, and the hour tube in a torque-transmitting manner.In the mechanical movement of a wristwatch, a pre-tensioned or wound mainspring is usually used as the drive, the torque of which is transmitted via various gear stages to the central seconds stem, the minute tube, and the hour tube. The gear stages act in such a way that all hands move in the same direction, but at different, constant speeds. The speed ratio between the second and minute hands, as well as between the minute and hour hands, is known to be 60:1.

[0003] So-called disc clocks, which use rotating discs instead of traditional hands to display the time, have been around since the 19th century. Such a disc clock is described in more detail in US patent 312,754. The clock has a total of three rotating discs arranged adjacent to each other, each rotating around its own axes and provided with consecutive numbers on its outer circumference. The hour disc is numbered 0-23, corresponding to the number of hours in a day. The minutes are displayed by two minute discs rotating in opposite directions and at different speeds. One of the minute discs, numbered 0-5, indicates the tens place, and the other, numbered 0-9, indicates the ones place.The rotating discs interact with a common perforated disc, also known as a mask, which is non-rotatable and, unlike a conventional clock face, is positioned above the rotating discs, essentially concealing them. The perforated disc or mask has a total of two recesses ("holes"), allowing the current time to be read from the numbering of the respective rotating disc visible below. Due to the decentralized arrangement disclosed here, the rotating discs are not directly connected to the central shaft of the clockwork; instead, their torque is transmitted to the rotating discs via various gears.

[0004] A classic version of a disc clock from the 1970s, in which three rotating discs rotate coaxially around a common axis, the central axis of the clockwork in the same direction, is known under the name "Pallas Eppo Automatic" and is publicly available on the Internet. (https: / / uhrmachermeister-nitzsche.de / blog / 11-arbeiten / 106-pallas-eppo-digital-scheibenuhr-mit-otero-796.html, last accessed on September 20, 2023). The seconds disc has the smallest diameter and is arranged concentrically above the minute disc; the hour disc, which is designed as a ring and in turn concentrically surrounds the minute disc, has the largest diameter. In this variant, the mask is provided with a single recess through which all three discs are visible. It is arranged on the left side in the direction of view, i.e., when reading the time, so that the numbering sections of the rotating discs visible within it indicate the current hour, minute, and second, read from left to right.

[0005] A similar, concentric clock face design in the form of a disc clock is known from German utility model DE 20 2011 000 658 U1. This design dispenses with the conventionally used perforated mask and yet still offers an attractive visual appearance. A ring-shaped dial with a minute display is firmly attached to the clock case. A disc with an hour display is arranged at the end of the hour tube. Above this, at the end of the minute tube, a center disc with connecting bars forms a ring-shaped minute display with an arrow display. The ring-shaped minute display is driven by the minute tube at the rotational speed of a minute hand, so that its arrow display on the outer, ring-shaped dial indicates the current minute time.Optionally, it is suggested that the minute indicator completely fills the space between the dial and the hour disc, thus concealing the underlying movement.

[0006] Especially in the field of high-priced, mechanical wristwatches, various technical implementations of the classic disc clock have been experimented with in recent times, not least because of their striking aesthetics. For example, European patent application EP 3 450 525 A1 proposes a variant of a disc clock with three eccentrically arranged, narrow ring discs that can rotate around their respective axes. These discs are intended to allow the most unrestricted view possible of the interior of the mechanical movement when reading the time. The hour and minute ring discs are each integrally provided with a radially inward-facing gear ring and are driven by correspondingly meshing drive elements of the movement.

[0007] The time is displayed by means of display elements pointing at the respective ring discs; a mask or perforated disc is not used.

[0008] Another variant of a disc clock with a central minute disc and a decentralized hour disc is known from European patent EP 2 510 406 B1. This variant also dispenses with the use of a mask. Instead, a minute hand is shown on the visible surface of the minute disc, which interacts with a dial that surrounds the minute disc in a ring. The hour disc is placed in a circular recess in the minute disc. The hour hand shown on the surface of the hour disc interacts accordingly with a dial shown on the surface of the minute disc. The upper, visible parts of the hour disc, the minute disc and the ring-shaped dial are intended to form a continuous surface.When the minute disc rotates around its axis, the hour disc placed inside it is also supposed to be carried along a circular path and at the same time rotate around its own, decentralized axis, which is made possible by a comparatively complex gear structure.

[0009] Finally, EP 1 569 261 B1 discloses an annual calendar mechanism for a mechanical clockwork. The calendar mechanism comprises a disc-shaped rotating date element, which is inscribed with the numbers 1 to 31 on its outer peripheral edge. Arranged above the rotating date element is a disc-shaped mask with a recess, a so-called window, so that the number on the rotating date element corresponding to the respective day of the month is visible. The rotating date element is connected to the clockwork drive via a planetary gear. The change of the days, e.g., from the 30th day of a month to the 31st day, occurs in jumps, meaning the rotating date element does not rotate at a constant speed. The time is displayed in this mechanism in the conventional manner using hands and the dial below them.

[0010] It is the object of the present invention to eliminate the disadvantages of the prior art and to create a dial module which enables uncomplicated technical implementation and expands the design possibilities of clocks or disc clocks.

[0011] The object is achieved by a clock according to claim 1 and a dial module according to claim 15.

[0012] A watch according to the invention of the type described in more detail above is characterized in that the mask, in particular a one-piece one, is ring-disk-shaped with a central recess whose diameter corresponds to the diameter of the second display element, i.e. is the same as the diameter of the recess or slightly larger or smaller, and with an annular surface concentrically surrounding the central recess. The annular surface has at least one peripheral recess which interacts with a, in particular a single, marking of the first display element in such a way that during a complete rotation of the first display element about the central axis of the movement, the peripheral recess coincides with the marking of the first display element exactly once.

[0013] According to the invention, the mask has at least two cutouts, wherein a central cutout arranged concentrically in the radially inner region of the watch interacts with the second display element to realize a central, centric or concentric, second time display, and at least one peripheral cutout interacts with the first display element to realize a peripheral, first time display. For this purpose, the central cutout and the second, disc-shaped display element have approximately the same outer diameter and are arranged concentrically, preferably coincidentally. The annular surface of the annular disc-shaped mask and the peripheral cutout located therein are arranged in the peripheral, radially outer region and interact with the first display element such that its marking and the peripheral cutout of the mask coincide exactly once per rotation of the first display element.Due to the interaction of the mask with one, in particular a single, marking of the first display organ, it is not necessary to use concrete numbers, unlike in the case of known disc clocks; instead, the time indication can be determined based on the positioning of the peripheral recess and the marking relative to each other.

[0014] Advantageous embodiments are claimed in the subclaims and are explained in more detail below.

[0015] In principle, the function according to the invention can be realized with just a single peripheral cutout in the mask. However, according to an exemplary variant of the invention, it is advantageous if the mask has several, for example, 2, 4 or 12 regularly spaced cutouts along the annular surface. An embodiment has proven particularly advantageous in which the mask has 12 peripheral cutouts that penetrate the annular surface at a regular angular distance of 30° from one another. During a complete rotation of the first display element around the central axis of the clockwork, each of the peripheral cutouts thus coincides with the marking exactly once. Based on the respective position of the marking, the current time can then be read, similar to the position of a clock hand, without the need for the use of numbers.

[0016] Optionally, the width of the peripheral marking of the first display element corresponds at least to the distance between the peripheral cutouts of the mask. With, for example, 12 peripheral cutouts, both the distance between the cutouts and the width of the marking are 30°. This has the advantage that the marking can be partially aligned with two adjacent cutouts. The time display is therefore not limited exclusively to specific points in time; rather, the continuous transition between the displayed points in time can also be tracked. In a further development of this option, the marking has different width sections, with the width being, for example, 35° in a radially inner section and 30° in a radially outer section. This further refines the time display.

[0017] The peripheral time display, realized in the peripheral clock area by the interaction of the first display element with the peripheral recess of the mask, can be used optionally to display the seconds, minutes, or hours. According to an advantageous embodiment of the invention, the first display element is connected to an hour tube of the clockwork in a torque-transmitting manner, so that when the clockwork is operating, the marker moves at a constant speed following a complete circular path within a period of 12 hours.

[0018] In a further development of this invention, the first display element is ring-shaped and is connected to the hour tube of the clockwork via spokes in a torque-transmitting manner. In an exemplary variant, the first display element can be designed in two parts, with a ring-shaped section being clipped onto a substructure containing the spokes. By designing the first display element in the shape of a disc or ring-shaped disc, it acts like a panel in relation to the recesses in the mask, concealing the view into the interior of the clock and maintaining a uniform visual appearance. The time display realized with the first display element is located in the outer, peripheral area of ​​the clock, which is why the display element has a relatively large diameter orradius, which, due to the resulting torque, leads to difficulties in driving the display element and ultimately to increased wear and thus a shorter service life of the watch. The required torque can be reduced by designing the first display element in the shape of a ring disk and connecting it to the hour tube via spokes. Preferably, the ring disk of the first display element and the ring surface of the mask are congruent, or the inner diameter of the first, ring disk-shaped display element corresponds to the inner diameter of the ring disk-shaped mask and the outer diameter of the second, disk-shaped display element. In an exemplary further development, shock protection can be provided in the form of support and sliding elements on the display side under the disk-shaped ring of the first display element in order to reduce wear.

[0019] An exemplary variant of the invention further provides that the second, disc-shaped display member comprises a display element and is connected to a minute tube of the clockwork in a torque-transmitting manner, so that when the clockwork is in operation, the display element moves at a constant speed following a complete circular path within a period of one hour.

[0020] In a further development of this variant, the mask has a scale with 4, 12, or 60 regularly spaced minute markings in its central recess. The scale interacts with the display element of the second, disc-shaped display element in such a way that with one complete rotation of the second, disc-shaped display element, its display element displays each of the scale markings exactly once.

[0021] In principle, it is conceivable to realize the mask, e.g. by printing or coating directly on the watch glass, the recess(es) are then realized as corresponding omission(s) of the printing or coating and form "windows" in the watch glass.

[0022] Preferably, however, according to one invention option, the mask is designed as a separate component or formed integrally as a separate, one-piece component. According to another invention option, the first and second disc-shaped indicator elements are not arranged in a common plane. The second disc-shaped indicator element can be fitted concentrically into the central recess of the mask, flush with the annular surface of the mask. For this purpose, it is advantageous if the diameter of the central recess is the same as or slightly smaller than that of the second indicator element. Alternatively, the diameter can also be slightly larger, in which case the second indicator element is then partially fitted, for example with a chamfer. The mask can, for example, be clipped onto the movement retaining ring, which forms part of the housing, thereby simplifying assembly and maintenance and thus reducing manufacturing and maintenance costs.In particular, assembly can be carried out without additional assembly material.

[0023] In a further development of this option, the mask and / or the first display element are spatially constructed such that the annular surface of the mask and / or the lateral surface of the first display element has an axial height extending along the central axis of the clockwork. For example, the mask and / or the first display element can be spatially constructed in the shape of a truncated cone, such that the annular surface of the mask and / or the lateral surface of the first display element is conical and oriented obliquely to the central axis of the clockwork.

[0024] As an alternative to the truncated cone, other spatial shapes that form a kind of dome are also conceivable, particularly with a curved shape, such as a spherical, ellipsoidal or similar shape.

[0025] This improves the readability of the peripheral time display; in particular, the marking of the first indicator can be seen from the side through the cutout(s) in the mask. At the same time, the available installation space is increased.

[0026] Preferably, both the mask and the first display element are constructed spatially, in particular in the shape of a truncated cone, wherein the lateral surface of the first display element then runs along the annular surface of the mask, in particular parallel to the annular surface of the mask.

[0027] To compensate for the resulting height difference, according to an exemplary option of the invention, the second, disc-shaped display element can have a support component and be connected to the drive of the clockwork mechanism via the support component, so that a distance in the axial direction is created between the second display element and the clockwork mechanism. In an advantageous further development, this distance corresponds approximately to the axial height of the conical annular surface of the mask and / or the lateral surface of the first display element.

[0028] According to one embodiment of the invention, the dial module can have a third, disc-shaped display element which is connected to a second shaft of the clockwork in a torque-transmitting manner, so that when the clockwork is in operation, the third display element rotates completely around the central axis once within a period of one minute.

[0029] For example, the third, disc-shaped indicator is arranged below the second indicator with respect to the central axis of the movement and has a regular numbering system that interacts with a second window of the second, disc-shaped indicator such that, upon a complete rotation of the third, disc-shaped indicator, each number of the numbering system coincides with the second window exactly once. Preferably, the second window is in the form of a ring-shaped section with a width of 120° and moves around the central axis together with the second indicator, creating the visual impression of a second display "wandering" around the central axis. Optionally or alternatively, the second indicator can also have a second display element that interacts with a scale of the third display element.

[0030] Finally, according to one variant of the invention, the first, in particular annular disc-shaped, indicator element, the second, disc-shaped indicator element, the third, disc-shaped indicator element, and / or the mask are made of a material with a density of less than 5 kg / dm 3 , preferably less than 3 kg / dm 3 , and particularly preferably less than 2 kg / dm 3 , in order to achieve the greatest possible weight reduction and thus the lowest possible torque. This reduces wear on the movement and maintenance requirements, ultimately increasing the service life of the watch.

[0031] The object of the invention stated at the outset is also achieved by a dial module which is suitable for use in a watch according to one of the variants described above.

[0032] Further details, features, feature (sub)combinations, advantages and effects based on the invention will become apparent from the following description of a preferred embodiment of the invention and the drawings. These show in Fig. 1 shows an exemplary embodiment of a dial module according to the invention in a schematic perspective exploded view, Fig. 2 shows a schematic perspective sectional view of an exemplary embodiment of a watch according to the invention and Fig. 3 shows a schematic perspective view of the watch from Figure 2 in a view from above.

[0033] The figures are merely exemplary and serve only to clarify the invention. The same elements are designated by the same reference numerals.

[0034] Figure 1shows a first exemplary embodiment of a dial module 200 according to the invention in a schematic perspective exploded view. The dial module 200 comprises a first, in particular annular disk-shaped display element 210, a second, disk-shaped display element 220, a third, likewise disk-shaped display element 230, and an annular disk-shaped mask 240, which are arranged concentrically with one another with the central axis ZA as the center point. The display elements 210, 220, 230 are rotatable in a common direction, clockwise (see arrow), about the central axis ZA with the clockwork 120 (see Figure 2 ) and move at different speeds relative to the fixed mask 240 during operation of the clock 100.

[0035] In the embodiment shown here, the mask 240 is constructed in a truncated cone shape with a conical annular surface 242 extending at an angle to the central axis ZA, which concentrically surrounds the circular, central recess 241. Along the annular surface 242, the mask 240 has a total of 12 peripheral recesses 243, each spaced at an angle of 30° from one another and penetrating the annular surface 242. The peripheral recesses 243 are designed here, for example, in the form of elongated holes, the width of which lies in a range of 3.0° to 10.0° and is preferably approximately 4.0°. The peripheral recesses 243 interact with the first display element 210, which is arranged below the central axis ZA, approximately congruent with the mask 240, and here also frustoconical, with a conically extending outer surface.For this purpose, the first display element 210 is provided with a single marking 211, which coincides with each of the peripheral recesses 243 exactly once per complete rotation of the first display element 210 around the central axis ZA. The peripheral recesses 243 of the mask 240 interact with the first display element 210 as the first peripheral time display of the dial module 200.

[0036] To reduce weight, the first display organ 210 is connected via spokes 212 to the drive of the clockwork 120 (see Figure 2 ). In the example shown here, the first indicator element 210 is constructed in two parts, with the conical outer surface being clipped onto a substructure encompassing the spokes 212.

[0037] The inner diameter of the central recess 241 of the mask 240 corresponds to the outer diameter of the second display element 220, so that in the operating state (see Figure 3) the second display element 220 is fitted concentrically and flush with the annular surface 242 of the mask 240. The second display element 220 and the mask 240 then form a common, continuous surface. On the upper side of the second, disc-shaped display element 220 facing the observer, there is applied a line-shaped display element 221, in particular a minute display element, which interacts with a scale 244 surrounding the central recess 241 of the mask 240. The scale 244 comprises 60 regularly spaced scaling markings, in particular minute markings, and interacts with the display element 221 of the second, disc-shaped display element 220 in such a way that upon its complete rotation about the central axis ZA, the display element 221 displays each of the scaling markings exactly once. The central recess 241 of the mask 240 therefore acts with the second display element 220 as a second, central orcentric time display of the dial module 200.

[0038] To compensate for the height difference caused by the truncated cone design of the first display element 210 and the mask 240, the second, disc-shaped display element 220 is connected to the drive of the clockwork 120 via a support component 222, so that a distance in the axial direction is created between the second display element 220 and the clockwork 120 that approximately corresponds to the axial height of the conical annular surface 242 of the mask 240. The support component 222 has the shape of a "cage" and "engages" in the operating state (see Figure 2) the third indicator 230, arranged below the second indicator 220 with respect to the central axis ZA, has four spoke-like "fingers." Two of the fingers are threaded so that the disc-shaped second indicator 220 can be attached to the support component 222 by means of screws. The remaining two fingers serve for support and stabilization. To improve the torque, the support component 222 is geometrically balanced.

[0039] The diameter of the third, disc-shaped display element 230 is smaller than that of the second, disc-shaped display element 220, so that the third display element 230 is generally concealed by the second display element 220 arranged above it. The third display element 230 is provided on its upper side facing the observer with a numbering 231 that regularly encircles its center point and interacts with a recess, in particular a seconds window 223, of the second display element 220 such that upon a complete rotation of the third display element 230 about the central axis ZA, each number of the numbering 231 coincides with the seconds window 223 exactly once. The seconds window 223 is realized in the form of an annular disc section with a width of 120° and has a seconds display element 224 that interacts with a correspondingly scaled division of the numbering 231 of the third display element 230.The second window 223 moves together with the second display element 220 around the central axis ZA and therefore interacts with the third display element 230 as a third, moving time display.

[0040] The Figure 2 shows a schematic perspective sectional view of an exemplary embodiment of a watch 100 according to the invention, in which the respective components of the dial module 200 from the Figure 1are shown in the installed operating state. The clock 100 comprises, as essential components, a case 110 and a clockwork 120, the latter being only indicated schematically here. The case 110 comprises the base 111 arranged at the bottom along the central axis ZA, the watch crystal 112 arranged at the top, and the middle part 113 located therebetween. The middle part 113, together with the base 111, encompasses the movement holding ring 114, which also forms part of the case 110. The clockwork 120 comprises the drive, the torque of which is transmitted via various gear elements to the hour tube 121, the minute tube 122, and the seconds stem 123.The first display element 210 is connected to the hour tube 121 via spokes 212, the second display element 220 is connected to the minute tube 122 via support component 222, and the third display element 230 is connected to the seconds stem 123 via an extension piece 232 in a torque-transmitting manner. This means that, during operation of the movement 120, the first display element 210 rotates once every 12 hours, the second display element 220 once every hour, and the third display element 230 once every minute around the central axis ZA. The bearings of the first display element 210 and the bearings of the support component 222 are designed to support each other to reduce wear. This can be clearly seen in the . Figure 2the conical and mutually parallel course of the lateral surface of the first, annular disk-shaped display element 210 and the annular surface 242 of the mask 240. A correspondingly conical section of the watch glass 112 also runs parallel thereto, whereby a dial design with a three-dimensional time display is realized.

[0041] In the Figure 3 The three-dimensionality of the dial module 200 is shown in a schematic perspective view of the clock 100 from the Figure 2illustrated. Overall, the clock 100 comprises the central or centric minute display, the seconds display moving therein, and the peripheral hour display arranged on the outer circumference. The centric minute display is realized centrally, in the radially inner region of the clock 100, with the central recess 241 and the scale 244 of the mask 240 interacting with the second display element 220. During operation of the clock 100, the second display element 220 rotates around the central axis ZA at a uniform speed corresponding to the speed of a minute hand, so that the display element 221 points to the corresponding scale marking for the current minute display.

[0042] The wandering seconds display is positioned radially within the central minute display, with the seconds window 223 and the seconds display element 224 interacting with the underlying numbering 231 of the third display element 230. During operation of the watch 100, the third display element 230 rotates around the central axis ZA at a uniform speed corresponding to the speed of a second hand, so that the numbering 231 passes through the seconds window 223 at a constant speed. The seconds window 223 has a width of 120°, so that a section of the third display element 230 corresponding to one-third of the numbering 223 is always visible. For a more precise second display, the seconds display element 224 therefore points to the corresponding number and / or scale marking.Since the second display element 220 also moves around the central axis ZA during operation of the watch 100, the second display window 224 also "wanders" around the central axis ZA once over the course of an hour. Both the minute and second displays are aligned perpendicular to the central axis ZA and parallel to the top of the watch crystal 112.

[0043] Due to the conical shape or truncated cone-like shape relative to the central axis ZA, the peripheral hour display, which is realized by the interaction of the marking 211 of the first display element 210 with the peripheral recesses 243 of the mask 240, is oriented obliquely relative to the central axis ZA. The peripheral recesses 243, designed as elongated holes, enable three-dimensional reading of the hour display from both a vertical view from above and a lateral view of the clock 100.

[0044] During operation of the clock 100, the first display organ 210 rotates around the central axis ZA at a uniform speed corresponding to the speed of an hour hand, so that the marking 211 for the current hour display is visible through the respective peripheral recess 243. The distance and width of the peripheral recesses 243 as well as the width of the marking 211 are selected such that, for example, at 8:59 a.m., the marking 211 is already visible through the current peripheral recess 243 and at the same time is just visible through the peripheral recess 243 preceding it in the direction of rotation, and at exactly 9:00 a.m. it is then exclusively visible through the current peripheral recess 243. The marking 211 can also have sub-areas of different widths, so that, for example, the hour that has just begun is indicated in advance by a sub-area with a greater width, with the sub-area with the greater width of the marking 211 then, for example,at 9:31 a.m. through the current, and at the same time just now through the subsequent peripheral recess 243 in the direction of rotation. For example, the distance between the peripheral recesses 243 could be 30°, and their width approximately 4.0°. The marking 211 could then be realized with a first partial area having a width of 30° and a second partial area having a width of 35°.

[0045] The inventive arrangement of the respective time displays creates a three-dimensional dial design with the minute display taking center stage. At the same time, the technical implementation is straightforward, enabling easy assembly and a long service life for a clock according to the invention or a clock with a dial module according to the invention. List of reference symbols

[0046] 100Clock 110Case 111Back 112Crystal 113Middle part 114Movement retaining ring 120Clockwork 121Hour tube 122Minute tube 123Seconds shaft 200 dial module 210First indicator 211Marking of the first indicator 212Spokes 220Second display element 221Display element 222Support component 223Second window 224Second display element 230third indicator 231numbering 232extension piece 240Mask 241Central recess 242Annular surface 243Peripheral recess 244Scale ZAZentral axis

Claims

1. A timepiece (100), in particular a wristwatch, comprising a housing (110), a clockwork (120), in particular a mechanical clockwork, and a dial module (200), which dial module (200) comprises at least - a first display element (210), and - a second, disc-shaped display element (220), each of which is connected to the drive of the clockwork (120) in a torque-transmitting manner and is rotatably driven about its central axis (ZA), and - a mask (240) provided with recesses (241, 243) which is firmly connected to the housing (110), wherein the first display element (210), the second display element (220), and the mask (240) are arranged concentrically about the central axis (ZA) of the clockwork (120), and the mask (240) is arranged above the first display element (210) with respect to the central axis (ZA), characterized in thatthe mask (240) is annular disc-shaped with a central recess (241), the diameter of which corresponds to the diameter of the second display element (220) and is formed with an annular surface (242) concentrically surrounding the central recess (241), wherein the annular surface (242) has at least one peripheral recess (243) which interacts with one, in particular a single, marking (211) of the first display element (210) in such a way that during a complete rotation of the first display element (210) about the central axis (ZA) of the clockwork (120), the peripheral recess (243) coincides exactly once with the marking (211) of the first display element (210).

2. Clock (100) according to claim 1, characterized in thatthe mask (240) has 12 peripheral recesses (243) which pass through the annular surface (242) at a regular angular distance from one another of 30°, so that during a complete rotation of the first display element (210) about the central axis (ZA) of the clockwork (120), each of the peripheral recesses (243) coincides with the marking (211) exactly once.

3. Clock (100) according to claim 2, characterized in that the width of the marking (211) of the first indicating element (210) corresponds at least to the angular spacing of the peripheral recesses (243) of the mask (240) and is 30°.

4. Clock (100) according to one of the preceding claims, characterized in that the first display element (210) is connected to an hour tube (121) of the clockwork (120) in a torque-transmitting manner, so that when the clockwork (120) is in operation, the marking (211) moves at a constant speed following a complete circular path within a period of 12 hours.

5. Clock (100) according to claim 4, characterized in that the first display element (210) is annular disc-shaped and is connected to the hour tube (121) of the clockwork (120) via spokes (212) in a torque-transmitting manner.

6. Clock (100) according to one of the preceding claims, characterized in that the second, disc-shaped display member (220) comprises a display element (221) and is connected to a minute tube (122) of the clockwork (120) in a torque-transmitting manner, so that when the clockwork (120) is in operation, the display element (221) moves at a constant speed following a complete circular path within a period of one hour.

7. Clock (100) according to one of the preceding claims, characterized in that the mask (240) is integrally formed as a one-piece component.

8. Clock (100) according to one of the preceding claims, characterized in that the first and the second disc-shaped display element (210, 220) are not arranged in a common plane.

9. Clock (100) according to one of the preceding claims, characterized in that the mask (240) is designed as a separate component, wherein the second, disc-shaped display element (220) is fitted concentrically and flush with the annular surface (242) into the central recess (241) of the mask (240).

10. Clock (100) according to one of the preceding claims, characterized in that the mask (240) and / or the first display element (210) is spatially constructed such that the annular surface (242) of the mask (240) and / or the lateral surface of the first display element (210) has an axial height extending along the central axis (ZA) of the clockwork (120).

11. Clock (100) according to claim 10, characterized in thatthe mask (240) and / or the first display element (210) is spatially constructed in the shape of a truncated cone, so that the annular surface (242) of the mask (240) and / or the lateral surface of the first display element (210) is conical and is aligned obliquely to the central axis (ZA) of the clockwork (120).

12. Clock (100) according to one of the preceding claims, characterized in that the second, disc-shaped display element has a support component (222) and is connected to the drive of the clockwork (120) via the support component (222), so that a distance in the axial direction is created between the second display element (220) and the clockwork (120).

13. Clock (100) according to one of the preceding claims, characterized in thatthe dial module (200) has a third, disc-shaped display element (230) which is connected to a second shaft (123) of the clockwork (120) in a torque-transmitting manner, so that when the clockwork (120) is in operation, the third display element (230) rotates completely around the central axis (ZA) once within a period of one minute.

14. Clock (100) according to claim 13, characterized in that the third, disc-shaped display element (230) is arranged below the second display element (220) with respect to the central axis (ZA) of the clockwork (120) and has a regular numbering (231) which interacts with a second window (223) of the second display element (220) in such a way that during a complete rotation of the third display element (230), each number of the numbering (231) coincides with the second window (223) exactly once.

15. Dial module (200), characterized in thatthe dial module (200) is suitable for use in a watch (100) according to one of the preceding claims.

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