A single-axis tourbillon in motion ... the banner is the Jaeger-LeCoultre Master Grande Tradition Gyrotourbillon 3 Jubilee watch, and you can watch it in motion below. You can see the balance ...
It may only run for a brief time, and it’s too big for use in an actual wristwatch, but this 3D-printed tourbillon is a great demonstration of the lengths watchmakers will go to to keep ...