| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a watch displaying a position of the Sun and a moon phase in relation to a predetermined present place on the Northern hemisphere or Southern hemisphere of the Earth.SOLUTION: The Southern hemisphere, the Northern hemisphere, or longitude of the Earth is drawn on a surface of a central disk 1 rotating one round for 24 hours around a central shaft 2, and the central shaft 2 passes the North pole 3. The watch comprises a 24-hours scale 5 disposed and fixed concentrically to the central shaft 2, and Sun marks fixed to the central shaft 2 with an interval in a radial direction, and disposed on positions of 12 times. The central disk 1 is concentrically surrounded by a large moon disk 4, and the central disk 1 is capable of rotating and driving in anticlockwise rotation so as to rotate one round for synodical month. In the large moon disk 4, a small moon disk having a moon visual inspecting hole 9 and being supported rotatably around a moon shaft parallel to the central shaft 2 on the large moon disk 4 is disposed. By rotation of the small moon disk, a dark circular surface is overlapped to the moon visual inspecting hole 9 gradually, and overlapping is gradually released.</p> |
