Perfect watchmaking
In contrast to its sister collection, the Jaeger-LeCoultre Master Ultra Thin Moon, the moon phases display on the Master Calendar is a little smaller. But as with the Master Ultra Thin Moon, the moon moves forward on the slowly rotating moon disc cutout on the dial, showing half-moon, full moon and new moon phases.
This complex complication is made possible by a mechanical movement with automatic winding that consists of 305 individual parts and a power reserve of 40 hours, all artfully created by the expert hands of Jaeger-LeCoultre's watchmakers. Models made from stainless steel or shimmering red gold are available with bracelets crafted from the finest alligator leather in different shades.