If the workings of a mechanical timepiece give you a thrill, prepare to be blown away by this over-the-top astronomical clock. The horological masterpiece, which was designed by [Mark Frank] as ...

Jens was 60 when he started constructing the clock, but the story starts when he was only 25. In Strasbourg, the young locksmith saw an astronomical clock with a perpetual calendar in a cathedral.

Among the clocks in the Drexel Founding Collection is the famous David Rittenhouse astronomical, musical tall-case clock ... The Drexel Founding Collection continues to catalog the works of art in the ...

This is an astronomical clock made by Song I-yeong, who was an astronomy professor in 1669 during the reign of King Hyeonjong of Joseon. The diameter of the clock is 40 centimeters (15.74 inches ...