A Crescent Moon Hanging on the Wrist – Jaeger-LeCoultre Watches

　　Li Bai loved wine and could not do without it. One evening, heavily intoxicated on a boat, he saw the bright moon mirrored in the water and, in his daze, laboured under the illusion that it was an earthly paradise, bravely jumping into the water to catch the moon. Thus, our great romantic poet, tempted by the moon after drinking, romantically bade farewell to the world that night to continue writing poetry in heaven.

　　From this, we can glean at least two lessons: drink less wine, and the moon is truly beautiful.

　　Moon phase is an astronomical term referring to the illuminated portion of the moon seen from Earth as lit by the sun. As everyone knows, the moon does not emit light itself. The moon we see at night is the portion reflecting sunlight. Across different periods, the moon waxes and wanes, presenting various appearances such as the new moon, first quarter, last quarter, and full moon.

　　As early as the 16th century, moon phase displays appeared in watchmaking. Developed to the present day, the moon phase in a wristwatch serves primarily a decorative function alongside tracking lunar changes. Many people buy moon phase watches simply for their beauty, particularly those by Jaeger-LeCoultreMoonphase watch, looking as though a slender crescent moon is truly suspended on the dial.

　　In fact, the principle of a moon phase watch is straightforward. On the dial, there is typically a separate moon phase disc comprising components such as a moon phase wheel with 59 teeth, corresponding to 29.5 days. This represents the duration of a moon phase cycle, known as a synodic month. Generally, because there is a slight daily discrepancy in the moon phase that accumulates, an adjustment is needed roughly every 33 months, requiring manual resetting at that time.

Jaeger-LeCoultre Master collection automatic mechanical watch

　　The moon phase display, a function as old as time, takes on distinct character in the hands of different brands. Let us step into the richJaeger-LeCoultre watchesworld and properly appreciate the charm of the moon phase.