Moon Phases

A SUBTLE BALANCE BETWEEN MECHANICAL PRECISION AND POETIC EXPRESSION, THE MOON PHASE COMPLICATION EVOKES THE ANCESTRAL BOND BETWEEN WATCHMAKING AND THE STARS

The moon phase complication offers a link to ancient times, when the full moon was the only source of light during the night. While today we no longer depend on moonlight for navigation, the moon phase indication remains one of the most poetic of all complications, giving an alternative perspective of the passage of time.

THE MECHANISM BEHIND THE MOON PHASE INDICATION

The moon phase complication replicates the progression of the lunar cycle. It is based on a disc adorned with two opposing moons, driven by a gear that mirrors the natural rhythm of the different lunar phases. At F.P.Journe, this complication unfolds on a sapphire disc delicately decorated with stars created through metallization, enhanced by a laser-engraved depiction of the moon inspired by a NASA image.

HOW TO SET YOUR COMPLICATION?

To ensure your watch faithfully reflects the moon's cycle, it is important to set the moon phase complication according to the current date. This calculator allows you to easily determine the moon’s position on a given date and adjust your moon phase complication accordingly, using your watch’s user manual. You will also find a calendar of upcoming full moons, providing key reference points throughout the lunar cycle.