The world's tallest clock tower stands in Mecca. The clock's minute hand measures 22 meters; its face has a diameter of over 40 meters. The know-how for this masterpiece of engineering comes from Germany's Black Forest region. It was made by Perrot, a family business that's specialized in making tower clocks and ringing systems for the last 150 years.

A Report by Anke Werner.

Made in Germany home page: http://www.dw.de/program/made-in-germany/s-3066-9798