ساعات الوقواق (ساعات ذات ديك يصيح)  شركات مصنعة، تجار، موردون، مزودو خدمات

Heinrich Immanuel Perrot
(*22.10.1929) obtained his apprenticeship credentials at the PERROT
firm's Water Sprinkler Division, after which he completed his
engineering studies at the State School of Engineering at Esslingen. In
1952, he began his tenure at his father's clockworks. In 1959, he
decided to take on the production of electric bellringing technology.
Shortly after that, the firm started to research into the production of
fully electrical and lightweight tower clock technology. However, these
new activities created, in the early 1960s, a need for larger production
premises. Heinrich I. Perrot had no choice but to expand with the
building of a new factory complex in the suburb of Calw-Heumaden.
Consequently, sales territories were widened and export markets were
opened up. For example, a new musical Calendar Clock was designed and
produced for a shopping mall in Dublin (Ireland). This breakthrough
marked the beginning of a new era for the PERROT firm and the Calendar
Clock became its prize showpiece.