| 摘要 |
Universal round calendar of a simple design which may be employed for various calendar systems. It provides traditional sequences of data and their intelligible and quick readjustment on another desired date. The universal round calendar may be employed as a part of a pocket watch or wrist watch without the necessity of any adaptation of the design of the watch mechanism, or it may be used as a complement of electronic digital watches. It also provides a direct function coupling between a calendar and a watch. The calendar, according to the invention, consists of two mutually revolving discs carrying indication marks for calendar data, the mutual position of which corresponding with the desired month in any range of years, is set up according to the code marking of the desired actual month.
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