tourbillon

horology

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July 14, 2026

Quick Summary

The term "tourbillon" in horology refers to a specific mechanism invented by Abraham-Louis Breguet. Its primary purpose is to counteract the effects of gravity on a watch's escapement and balance spring, which can cause inaccuracies in timekeeping.1

The tourbillon achieves this by housing the escapement and balance spring within a rotating cage. This constant rotation ensures that the effects of gravity are averaged out over time, regardless of the watch's position. While the word "tourbillon" can also mean a whirlwind or vortex, in watchmaking, it signifies this ingenious device designed for enhanced precision.12

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Abraham-Louis Breguet
…many precision watches, and the tourbillon, an improvement that rendered the escapement immune to errors caused by the changing position of the watch while being carried. Breguet succeeded Pierre-Louis Berthoud as the official chronometer maker to the French navy in 1815 and was admitted to the French Academy of Sciences…
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…many precision watches, and the tourbillon, an improvement that rendered the escapement immune to errors caused by the changing position of the watch while being carried. Breguet succeeded Pierre-Louis Berthoud as the official chronometer maker to the French navy in 1815 and was admitted to the French Academy of Sciences…
Read More