Monday 26 May 2014

Tourbillon

In horology, a tourbillon is an addition to the mechanics of a watch escapement.

… a tourbillon aims to counter the effects of gravity by mounting the escapement and balance wheel in a rotating cage, to negate the effect of gravity when the timepiece (thus the escapement) is stuck in a certain position.

Originally an attempt to improve accuracy, tourbillons are still included in some expensive modern watches as a novelty and demonstration of watchmaking virtuosity. The mechanism is usually exposed on the watch's face to show it off.

See full article at http://en.wikipedia.org/wiki/Tourbillon

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