CN111258205A - Starry sky moon phase display mechanism in watch - Google Patents
Starry sky moon phase display mechanism in watch Download PDFInfo
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- CN111258205A CN111258205A CN201811457436.8A CN201811457436A CN111258205A CN 111258205 A CN111258205 A CN 111258205A CN 201811457436 A CN201811457436 A CN 201811457436A CN 111258205 A CN111258205 A CN 111258205A
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- moon phase
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- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 238000010587 phase diagram Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000003203 everyday effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
- G04B19/268—Clocks or watches with indicators for tides, for the phases of the moon, or the like with indicators for the phases of the moon
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B19/00—Indicating the time by visual means
- G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like
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- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
Abstract
The invention discloses a starry sky moon phase display mechanism in a watch, which comprises two calendar wheels, a moon phase display part and a starry sky display part, wherein the moon phase display part and the starry sky display part are packaged into a whole; the double calendar wheels are respectively meshed with the moon phase display part and the starry sky display part to drive the moon phase display part and the starry sky display part to rotate. The beneficial effects are that: 1. the double calendar wheels simultaneously complete the control and the drive of starry sky real-time indication and lunar phase indication, so that the ornamental value and the artistic value of the watch are increased, the universality of structural parts is good, the process difficulty is not required to be increased, and the occupied space of the watch is small; 2. the starry sky and moon phase functions appear in a module form, transmission connection is completed through the universal double calendar wheels in the watch, universality is high, personalized customization and flexible production of the watch are facilitated, and convenience is brought to assembly and maintenance of the watch in the future. 3. The moon phase display is positioned at different positions of the dial plate according to the difference of the moon position at the same time every day.
Description
Technical Field
The invention relates to a celestial body display mechanism of a watch, in particular to a display mechanism capable of simultaneously displaying the relative position and shape of a starry sky picture and a moon.
Background
Patent CN193965809U discloses a display mechanism with a star wheel rotating on the dial face, the star wheel rotates with a period of one year to display the star position changing constantly, but only the star wheel display will make the watch lack dynamic elements, because the long period will cause the user to generate the illusion that the star wheel is not moving.
Patent CN196788560U discloses a mechanism for displaying the lunar phase of a watch, in which the lunar phase disk jumps at a fixed period and displays the real lunar phase of the same day on a window, but only the lunar phase display of the window can make the dial not full enough, and the window is fixed, so that the relative position of the lunar phase cannot be seen.
Disclosure of Invention
The invention aims to provide a watch celestial body display mechanism capable of simultaneously and accurately displaying the relative positions of the true lunar phase, the lunar phase and the image change and the star-sky plot of the current lunar phase.
The invention adopts the technical scheme that a starry sky and moon phase display mechanism in a watch comprises a double calendar wheel, a moon phase display part and a starry sky display part which are packaged into a whole; the double calendar wheels are respectively meshed with the moon phase display part and the starry sky display part to drive the moon phase display part and the starry sky display part to rotate.
The moon phase display part comprises a wheel passing part, a moon phase changing wheel part, a date changing shifting block and a moon phase display disc; the lunar phase display disc is arranged in a track of the bottom plate component, and the third wheel component is meshed with the lunar phase changing wheel component; the lunar phase changing wheel component comprises a coaxially mounted lunar phase changing shifting block which shifts a lunar phase display disc, a lunar phase display window is arranged on the lunar phase display disc, and a lunar phase diagram on the bottom plate component is displayed through the lunar phase display window.
The lunar phase display disk is freely rotatable about the center of the floor member.
The starry sky display part comprises a date changing wheel and a date changing nail which are pressed into a whole, a date changing head, a calendar wheel sheet and a calendar gear shaft which are pressed into a whole, an intermediate wheel sheet and an intermediate wheel gear shaft which are riveted into a whole, a fast sun deflector rod spring, a starry sky wheel sheet and a starry sky wheel shaft which are pressed into a whole, and a positioning rod; the date changing head is arranged on the date changing wheel and is meshed with or separated from the calendar wheel sheet; the intermediate wheel is respectively meshed with the calendar gear shaft and the intermediate wheel sheet; the fast-pulling rod is meshed or disengaged with the calendar wheel sheet; the starry sky wheel sheet is meshed with the intermediate wheel gear shaft; the starry sky wheel sheet and the starry sky wheel shaft are assembled on the cover plate through the starry sky wheel pressing sheet and the screws, and the starry sky wheel sheet can flexibly rotate on the cover plate.
The packaging part comprises a cover plate and a bottom plate part which are fastened into a whole through a screw; the bottom plate component is fixed with a watch basic movement, and double calendar wheels are sleeved on a time-sharing wheel shaft of the movement.
The double calendar wheel is meshed with the idle wheel component, and the double calendar wheel is meshed with the date changing wheel.
The lunar phase display disc is annular, 30 teeth are uniformly distributed on the inner ring, and real lunar phase patterns of 30 days of lunar calendar are printed on the surface of the bottom plate track.
The invention has the beneficial effects that:
1. the double calendar wheels simultaneously complete the control and the drive of starry sky real-time indication and lunar phase indication, so that the ornamental value and the artistic value of the watch are increased, the universality of structural parts is good, the process difficulty is not required to be increased, and the occupied space of the watch is small;
2. the starry sky and moon phase functions appear in a module form, transmission connection is completed through the universal double calendar wheels in the watch, universality is high, personalized customization and flexible production of the watch are facilitated, and convenience is brought to assembly and maintenance of the watch in the future.
3. The moon phase display is positioned at different positions of the dial plate according to the difference of the moon position at the same time every day.
Drawings
FIG. 1 is a schematic plan view of a lunar space display structure according to the present invention;
FIG. 2 is a schematic diagram of the internal structure of the moon sky display structure of the present invention;
FIG. 3 is a schematic view of a lunar phase printed on a bottom plate member of the lunar phase starry space display mechanism of the present invention
FIG. 4 is an axial schematic view of the lunar space display mechanism of the present invention;
FIG. 5 is a schematic diagram of the display effect of the dial of the lunar starry sky display mechanism according to the present invention;
FIG. 6 is a view of the data of the lunar phase in the sky;
FIG. 7 is a schematic diagram of the display of the present invention at the beginning of the ninth.
In the figure:
1. bottom board part 2, cover plate 3, double calendar hour wheel
4. Double calendar wheel 5, double calendar wheel component 6, sun changing wheel component
7. Day-changing wheel 8, day-changing nail 9, day-changing head
10. Calendar wheel component 11, calendar wheel sheet 12 and calendar gear shaft
13. Day positioning spring rod 14, intermediate wheel 15, intermediate wheel component
16. Intermediate wheel sheet 17, intermediate wheel gear shaft 18, sun fast dial rod
19. Sun quick lever spring 20, star-and-hollow wheel component 21, star-and-hollow wheel sheet
22. Starry sky wheel shaft 23, starry sky wheel tabletting 24, moon phase display panel
25. Moon-changing phase wheel component 26, sun-changing shifting block 27 and third wheel component
28. The positioning rod 29 is a reversing intermediate wheel.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
as shown in fig. 1 to 7, the starry sky and moon phase display mechanism in the watch of the present invention is an independent module mechanism, the module is connected by a central dual calendar hour wheel component, and the encapsulation component can be realized by designing a positioning (or positioning connection) structure, including a dual calendar hour wheel, a moon phase display part and a starry sky display part which are encapsulated as a whole; the double calendar wheels are respectively meshed with the moon phase display part and the starry sky display part to drive the moon phase display part and the starry sky display part to rotate.
The lunar phase display part comprises a wheel passing part 27, a lunar phase changing wheel part 25, a date changing dial 26 and a lunar phase display disc 24; the moon phase display plate 24 is installed in the orbit of the bottom plate member 1, the moon phase display plate 24 can freely rotate around the center of the bottom plate member 1, the moon phase changing wheel member 25 and the wheel passing member 27 are fixedly installed on the bottom plate member 1, and the wheel passing member 27 is engaged with the moon phase changing wheel member 25; the lunar phase changing wheel component 25 comprises a coaxial-mounted lunar phase changing shifting block 26, the lunar phase changing shifting block 26 shifts a lunar phase display plate 24, a lunar phase display window is arranged on the lunar phase display plate 24, a lunar phase diagram on the bottom plate component 1 is displayed through the lunar phase display window, and a corresponding lunar phase diagram or a corresponding lettering plate is displayed through the rotation of the lunar phase display window. The moon phase display plate 24 is circular and 30 teeth are uniformly distributed on the inner ring. The surface of the bottom plate track is printed with a real moon phase pattern of 30 days of a lunar calendar, fifteen of the lunar calendar is a full moon, and thirty of the lunar calendar is a new moon.
The double-calendar hour wheel component 5 comprises a double-calendar hour wheel 3 and a double-calendar wheel 4 which are pressed into a whole;
the date-changing wheel component 6 comprises a date-changing wheel 7 and a date-changing nail 8 which are pressed into a whole;
the calendar wheel component 10 comprises a calendar wheel piece 11 and a calendar gear shaft 12 which are pressed into a whole;
the intermediate wheel component 15 comprises an intermediate wheel sheet 16 and an intermediate wheel tooth shaft 17 which are riveted into a whole;
the starry sky wheel component 20 comprises a starry sky wheel sheet 21 and a starry sky wheel shaft 22 which are pressed into a whole;
the starry sky display part comprises a date changing wheel 7, a date changing nail 8, a date changing head 9, a calendar wheel sheet 11, a calendar gear shaft 12, an intermediate wheel 14, an intermediate wheel sheet 16, an intermediate wheel gear shaft 17, a fast day dial rod 18, a fast day dial rod spring 19, a starry sky wheel sheet 21, a starry sky wheel shaft 22 and a positioning rod 28, wherein the date changing wheel and the date changing nail are pressed into a whole; the date changing head 9 is arranged on the date changing wheel 7, the date changing wheel 7 is meshed with the calendar wheel sheet 11, and the date changing head 9 is meshed with or disengaged from the calendar wheel sheet 11; the intermediate wheel 14 is respectively meshed with the calendar gear shaft 12 and the intermediate wheel sheet 16; the fast day pulling rod 18 is meshed with or disengaged from the calendar wheel sheet 11; the starry sky wheel sheet 21 is meshed with the intermediate wheel gear shaft 17; the starry sky wheel component 20 is assembled on the cover plate 2 through the starry sky wheel pressing sheet 23 and the screws, and after the assembly is completed, the starry sky wheel component 20 can freely and flexibly rotate on the cover plate 2.
The packaging part comprises a cover plate 2 and a bottom plate part 1 which are fastened into a whole through a screw; the bottom plate component 1 is fixed with a watch basic movement, and a double calendar wheel 4 is sleeved on a time-sharing wheel shaft of the movement and can drive the mechanism; the double calendar wheel 4 is meshed with the third wheel component 27, and the double calendar wheel 4 is meshed with the day-changing wheel 7.
The cover plate 2 is connected and fastened with the bottom plate part 1 and the transmission part in the watch moon phase starry sky module display mechanism through the fastening piece to be packaged and fastened into a module, when the watch needing the function is assembled, maintained and adjusted, the watch is integrally disassembled and assembled, and when the module is designed, the central double calendar hour wheel 4 is required to be matched with the central shaft to meet the requirements, and the cover plate 2, the bottom plate part 1 and the watch movement are provided with corresponding connecting holes, connecting pieces, positioning holes and positioning columns to play a role in fixing and positioning.
All parts running power in the watch moon star sky module display mechanism is provided by the central double calendar wheel 4, the power source of the double calendar wheel 4 can be realized by the friction transmission of the central wheel shaft and the double calendar wheel 4 or the transmission part in the preorder through the gear meshing and output to the double calendar wheel 4, so that the requirement on module connection is reduced, the assembly can be selected according to the product requirement, and the module universality is strong.
The operation of the lunar starry sky display mechanism of the present invention is described as follows:
the double calendar wheel 4 is meshed with the date changing wheel 7, the date changing nail 8 pushes the date changing head 9 to rotate, the date changing head 9 is meshed with the calendar wheel piece 11, and one tooth of the calendar wheel piece 11 is shifted every time the date changing head 9 rotates one circle. The calendar gear shaft 12 is meshed with the intermediate wheel 14, the intermediate wheel 14 is meshed with the intermediate wheel sheet 16, the intermediate wheel gear shaft 17 is meshed with the starry sky wheel sheet 21, and the date positioning spring rod 13 controls the position of the calendar wheel sheet 11. Because the double calendar wheel 4 is meshed with the day-changing wheel 7, the double calendar wheel 4 rotates to drive the day-changing wheel 7 to rotate. Because the date changing head 9 is arranged on the date changing wheel 7 and moves along with the date changing head, the date changing wheel 7 drives the date changing head 9 to rotate. The date changing head 9 drives the date changing wheel component 6 to rotate when the date changing head 9 is engaged with the calendar wheel sheet 11. The calendar gear shaft 12 is meshed with the intermediate wheel 14, and the calendar gear shaft 12 drives the intermediate wheel 14 to rotate. The intermediate wheel 14 is engaged with the intermediate wheel piece 16, and the intermediate wheel 14 drives the intermediate wheel piece 16 to rotate. The intermediate gear shaft 17 is meshed with the starry sky wheel sheet 21, and the intermediate gear shaft 17 drives the starry sky wheel sheet 21 to rotate.
The double calendar wheel 4 rotates once every 12 hours to drive the reversing intermediate wheel 29 to rotate, the reversing intermediate wheel 29 drives the intermediate wheel part 27 to rotate, the intermediate wheel part 27 drives the moon phase changing wheel part 25 to rotate, the transmission ratio is changed through the intermediate wheel part 27, the moon phase changing wheel part 25 rotates once every 24 hours in a clockwise mode, the date changing dial 26 on the moon phase changing wheel part 25 dials one tooth of the moon phase display disc 24, and the moon phase display disc 24 rotates one tooth in a clockwise mode every 24 hours, so that the moon phase display disc 24 rotates one circle in a clockwise mode every 30 days after one lunar calendar (30 days) and the lunar calendar also comprises a lunar month of 29 days, and the moon phase display disc 24 can be dialed one day in the 30 th day (the first day of the next lunar) after 29 days of each lunar month. Since the revolution speed of the moon around the earth is not equal to the rotation speed of the earth (synchronous rotation speed), the moon appears later every day than the previous day, that is, the moon is different in shape and position at the same time on different dates. As shown in fig. 6, when the first nine moon is observed to be west of the first fifteen moon at the same time on different dates in the northern hemisphere, the product is shown to be right of the full moon (first fifteen, 12 o' clock) (as shown in fig. 7).
It should be noted that the protection scope of the present invention is not limited to the above specific example, and the basic technical idea of the present invention can also be implemented by using basically the same structure, and the objects of the present invention, such as changing the shape of the components, fixing manner, transmission ratio, changing the position of the lunar phase window, adding positioning and quick-setting devices, etc., all belong to the protection scope of the present invention as long as those skilled in the art can imagine the embodiments without creative work.
Claims (7)
1. A starry sky moon phase display mechanism in a watch is characterized by comprising two calendar wheels, a moon phase display part and a starry sky display part which are packaged into a whole; the double calendar wheels are respectively meshed with the moon phase display part and the starry sky display part to drive the moon phase display part and the starry sky display part to rotate.
2. A starry sky moon phase display mechanism in a wristwatch according to claim 1, wherein said moon phase display portion includes a wheel passing member (27), a moon phase changing wheel member (25), a day changing dial (26), and a moon phase display plate (24); the moon phase display disc (24) is arranged in a track of the bottom plate component (1), and the wheel passing component (27) is meshed with the moon phase changing wheel component (25); the lunar phase changing wheel component (25) comprises a coaxially mounted lunar phase changing shifting block (26), the lunar phase changing shifting block (26) shifts a lunar phase display disc (24), a lunar phase display window is arranged on the lunar phase display disc (24), and a lunar phase diagram on the bottom plate component (1) is displayed through the lunar phase display window.
3. Starry sky moon phase display mechanism in a wristwatch according to claim 2, characterised in that the moon phase display disk (24) is freely rotatable around the centre of the bottom plate member (2).
4. The starry sky and moon phase display mechanism in the watch according to claim 1, wherein the starry sky display portion comprises a date-changing wheel (7) and a date-changing nail (8) which are pressed together, a date-changing head (9), a calendar wheel sheet (11) and a calendar gear shaft (12) which are pressed together, an idle wheel (14), an idle wheel sheet (16) and an idle gear shaft (17) which are riveted together, a fast-day shift lever (18), a fast-day shift lever spring (19), a starry sky wheel sheet (21) and a starry sky gear shaft (22) which are pressed together, and a positioning lever (28); the date changing head (9) is arranged on the date changing wheel (7), and the date changing head (9) is meshed with or disengaged from the calendar wheel sheet (11); the intermediate wheel (14) is respectively meshed with the calendar gear shaft (12) and the intermediate wheel sheet (16); the fast day pulling rod (18) is meshed or disengaged with the calendar wheel sheet (11); the star wheel sheet (21) is meshed with the intermediate wheel gear shaft (17); the starry sky wheel sheet (21) and the starry sky wheel shaft (22) are assembled on the cover plate (2) through the starry sky wheel pressing sheet (23) and screws, and the starry sky wheel sheet (21) can flexibly rotate on the cover plate (2).
5. A starry sky moon phase display mechanism in a wristwatch according to claim 1, wherein the package comprises a cover plate (2) and a base plate member (1) fastened together by screws; the bottom plate component (1) is fixed with a watch basic movement, and a double calendar wheel (4) is sleeved on a time-sharing wheel shaft of the movement.
6. Mechanism according to claim 2 or 4, characterized in that said double calendar wheel (4) is engaged with the third wheel member (27) and the double calendar wheel (4) is engaged with the day-changing wheel (7).
7. A starry sky moon phase display mechanism in a wristwatch as claimed in claim 2 wherein said moon phase display plate (24) is circular, the inner ring has 30 teeth evenly distributed, and the bottom plate rail surface is printed with a real moon phase pattern of lunar calendar 30 days old.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457436.8A CN111258205A (en) | 2018-11-30 | 2018-11-30 | Starry sky moon phase display mechanism in watch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811457436.8A CN111258205A (en) | 2018-11-30 | 2018-11-30 | Starry sky moon phase display mechanism in watch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111258205A true CN111258205A (en) | 2020-06-09 |
Family
ID=70943871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811457436.8A Withdrawn CN111258205A (en) | 2018-11-30 | 2018-11-30 | Starry sky moon phase display mechanism in watch |
Country Status (1)
| Country | Link |
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| CN (1) | CN111258205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114355749A (en) * | 2020-10-13 | 2022-04-15 | 斯沃奇集团研究和开发有限公司 | Rotary disc moon phase indicator |
| CN114879471A (en) * | 2022-06-02 | 2022-08-09 | 天津海鸥表业集团有限公司 | Quick-dialing mechanism, coaxial display system and watch |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066160U (en) * | 1990-04-25 | 1990-11-21 | 山东烟台手表厂 | Multi-functional astronomy wrist watch device |
| CN1412629A (en) * | 2001-10-19 | 2003-04-23 | 杨光 | Guantian timepiece |
| JP2009229069A (en) * | 2008-03-19 | 2009-10-08 | Citizen Holdings Co Ltd | Timepiece provided with mechanism displaying position and age of moon |
| TW201040676A (en) * | 2009-05-14 | 2010-11-16 | Tsint | Transparent celestial clock |
| CN203965809U (en) * | 2014-06-05 | 2014-11-26 | 天津海鸥表业集团有限公司 | Starry sky figure rotation display mechanism of mechanical watch |
| CN106842885A (en) * | 2015-12-04 | 2017-06-13 | 天津海鸥表业集团有限公司 | Modularized multifunctional display mechanism |
| CN206788560U (en) * | 2017-04-25 | 2017-12-22 | 天津海鸥表业集团有限公司 | Moon phase display mechanism of watch |
| CN207380451U (en) * | 2017-10-27 | 2018-05-18 | 杭州手表有限公司 | A kind of phases of the moon indication mechanism |
| CN209417529U (en) * | 2018-11-30 | 2019-09-20 | 天津海鸥表业集团有限公司 | Starry sky and moon phase display mechanism in watch |
-
2018
- 2018-11-30 CN CN201811457436.8A patent/CN111258205A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2066160U (en) * | 1990-04-25 | 1990-11-21 | 山东烟台手表厂 | Multi-functional astronomy wrist watch device |
| CN1412629A (en) * | 2001-10-19 | 2003-04-23 | 杨光 | Guantian timepiece |
| JP2009229069A (en) * | 2008-03-19 | 2009-10-08 | Citizen Holdings Co Ltd | Timepiece provided with mechanism displaying position and age of moon |
| TW201040676A (en) * | 2009-05-14 | 2010-11-16 | Tsint | Transparent celestial clock |
| CN203965809U (en) * | 2014-06-05 | 2014-11-26 | 天津海鸥表业集团有限公司 | Starry sky figure rotation display mechanism of mechanical watch |
| CN106842885A (en) * | 2015-12-04 | 2017-06-13 | 天津海鸥表业集团有限公司 | Modularized multifunctional display mechanism |
| CN206788560U (en) * | 2017-04-25 | 2017-12-22 | 天津海鸥表业集团有限公司 | Moon phase display mechanism of watch |
| CN207380451U (en) * | 2017-10-27 | 2018-05-18 | 杭州手表有限公司 | A kind of phases of the moon indication mechanism |
| CN209417529U (en) * | 2018-11-30 | 2019-09-20 | 天津海鸥表业集团有限公司 | Starry sky and moon phase display mechanism in watch |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114355749A (en) * | 2020-10-13 | 2022-04-15 | 斯沃奇集团研究和开发有限公司 | Rotary disc moon phase indicator |
| EP3985449A1 (en) * | 2020-10-13 | 2022-04-20 | The Swatch Group Research and Development Ltd | Lunar phase indicator by rotating disc |
| CN114879471A (en) * | 2022-06-02 | 2022-08-09 | 天津海鸥表业集团有限公司 | Quick-dialing mechanism, coaxial display system and watch |
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Application publication date: 20200609 |
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