This stunningly rare device has a price tag of $245,000 with semiprecious stones representing Mercury (serpentine), Venus (chloromelanite), Earth (turquoise), Mars (red jasper), Jupiter (blue agate), and Saturn (sugilite). All of the stones rotate separately and at the same pace as the actual planets. In 88 days, Mercury will make a full lap around the face of the watch, while Venus requires 224 days and Earth takes a full year.
A shooting star indicates the hours and minutes and a "lucky day" feature allows owners to select a specific day of the year when the Earth will fall underneath the paint star on the face of the watch.
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From here, with video.