This invention relates to a timepiece, such as a wrist watch, with a drive for the step-by-step rotation of at least one numeral disc comprising a date ring and concentrically mounted day ring, having the days of the week in annular arrangement, both rings being covered by a dial. The dial includes at least one main date window and one main day window which may be combined to form one common main window and each making visible one day of the week on the day ring and the contemporary date on the circle of numerals. Additional windows may be provided to show prior and succeeding dates.
A timepiece calendar arrangement includes a single calendar disc having dts arranged around its periphery, and a viewing window arranged to mask all digits other than those corresponding to a given date. The digits are interlaced and the viewing window is formed from two separated portions, both portions being located away from a principal diametral axis of the timepiece.
An improved calendar timepiece in which the correspondence between the month and date can be easily adjusted to obtain any desired date and month relationship.
A calendar timepiece, wherein a seven day calendar display having each day of the week arranged on a line with a plurality of calendar date representations arranged in several rows to form a lattice work, positioned in close proximity to said day calendar display. Also provided are a plurality of indicating members, adapted to be commonly driven by movement of the timepiece to advance a step each complete day.
A calendar watch comprising a date module plate having seven varieties of one month date module sections on its face at the angularly spaced positions, each the section having the characters of one month dates which are sequentially arranged in seven columns in which the position of the first character is different in turn by one column from each of the other date module sections, the date module plate being rotatably mounted at the back of a dial in coaxially over-lapped relation therewith and adapted to angularly rotate upon operating a manipulating part on a watch case, the dial being provided with a window for indicating therethrough an optionally selected one of the date module sections and also provided in the vicinity of the upper end of the window with a sequence of characters showing the seven days of week from Sunday to Saturday and are positioned respectively aligned with the seven columns of each of the date module sections.
