Christiaan Huygens

Huygens was a Dutch scientist born in 1629. He earned distinction as the father of mechanical clocks for inventing a pendulum clock and balance spring clock.

John Harrison

Harrison was a British clockmaker born in 1693. He is famous for inventing a marine chronometer for accurately determining longitudes while sailing.

Abraham-Louis Breguet

Abraham-Louis Breguet was a genius watchmaker born in Switzerland in 1747. He invented a prolific body of unique technologies and designs.

Hisashige Tanaka

Hisashige Tanaka, aka “Karakuri Giemon,” was a rare genius mechanical engineer born in 1799. He manufactured the perpetual clock among many other unique inventions.