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Gyro-Tourbillion
This kind of tourbillion rotates around two axes, of which both rotate once per minute. The Entire tourbillion is powered by a unique constant-force mechanism, called a remontoire (from the French word remonter, meaning 'to wind'). Thomas Prescher invented the constant-force mechanism to equalize the effects of a wound and unwound mainspring, friction, and gravitation. Which means, equal force is always supplied to the oscillation regulating system of the double-axis tourbillion.
