| 摘要 |
A planisphere watch includes a watch case having a transparent lens. A time keeping mechanism is disposed within the case and has a time display viewable through the lens. A planisphere map of star constellations and star systems is viewable through the lens. A rotatable bezel overlies the lens and defines a window through which a portion of the planisphere is viewed. The bezel includes time indicia alignable with date indicia imprinted onto an underlying tension ring. Rotating the bezel to align a selected time with a selected date reveals a portion of the planisphere map viewable in the night sky at that selected time and date.
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