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JLC Master Grande Tradition Cal 945 is The Sky At Night

We always have time here for genius engineering in watchmaking. That’s why we can’t stop looking at the detail photos of the latest Jaeger le Coultre. Complications, are like mountains – they’re just there. Here’s the word from JLC;

The new Master Grande Tradition Calibre 945 embodies Jaeger‑LeCoultre’s mastery of astronomical complications in its celestial vault complication. In order to depicts a stunning sky-chart of the Northern Hemisphere night sky as seen from the 46th parallel – the latitude of Jaeger‑LeCoultre’s home, Jaeger‑LeCoultre talented watchmakers have invented a complex mechanism based on the sidereal day.

Slightly shorter than a solar day (on which we base civil timekeeping), a sidereal day is based on Earth’s rotation measured relative to the ‘fixed’ stars, which takes precisely 23 h, 56 min and 4.1 seconds. The sidereal day is used by astronomers to follow the apparent movement of the stars across the night sky.

Ensuring the utmost precision of the watch, the Orbital Flying Tourbillon makes a complete, anti-clockwise circuit of the dial in one sidereal day.

Check the video out;

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