上图中所示的天文钟和它年代相仿，悬挂在布拉格旧城区广场的市政大厅之上，其中一些部件距今也有601年的历史了。
The clock pictured above, of the same era, is mounted on Old Town City Hall wall in Prague's Old Town Square and has some parts that date from 1410.
Suzanne-Claire Williams：“布拉格旧城广场的天文钟。
Suzanne-Claire Williams: "The Astronomical Clock in Prague's Old Town Square.
以水为动力，集浑仪、浑象、报时装置于一体，是世界上最早的天文钟。
Using water power and having all the functions of the armill ary sphere it was the first astronomical clock in the world.
应用推荐