Big Ben

The clock mechanism is famous for its reliability.

An excerpt from the article 22 facts about Big Ben

The construction of the clock was entrusted to watchmaker Edward John Dent - after his death, the work was continued by his stepson, Frederick Dent. He used innovative solutions that mitigated the impact of rain, wind, and snow on the discs. Frederick never patented his idea, and it quickly became the standard for all new, high-quality tower clocks.