In the world of horology, there exists a fascination with watches that go beyond telling the hours, minutes and seconds. Moon phase watches embody this enchantment, as they tell time but also track the dance of the moon across the sky. In this exploration, we delve into the moon phase complication, unraveling the mysteries and highlighting the reasons behind their enduring appeal.

What is a moon phase watch?

  • A complication to track the phases of the moon

    At its essence, a moon phase complication is a feature integrated into watches to track the phases of the moon.
    This complication portrays the current lunar phase, often depicted through a miniature representation of the moon's illuminated portion against a darkened backdrop.

    On mechanical and quartz movements, the moon phase complication adds a touch of traditional craftsmanship and artistry. Through intricate gears and mechanisms, these watches accurately depict the waxing and waning of the moon, often with stunning attention to detail.

  • Front view of gold colored Swatch watch with moon phase complication

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What we love about a moon phase watch

  • Celestial connection

    Highlighting the emotional and aesthetic allure of moon phase watches, showcasing their unique ability to forge a connection with the celestial realm and the captivating beauty of the lunar cycle.

  • Romantic symbolism

    Moon phase watches sparkle with romance, drawing wearers into their enchanting spell. Each glance evokes the serene beauty of the moon's phases, igniting a sense of wonder and fascination.

  • Historical context

    Ancient civilizations observed the Moon to track days and predict events. This practice influenced the development of timekeeping. Patek Philippe first developed the moon phase complication for a wristwatch in 1925, marking a milestone in horological innovation.

"Love you to the moon phase and back"

Gold colored Seiko with moon phase complication on the wrist

How to set the moon phase complication

Setting the moon phase complication requires a bit of precision and patience, but the process is relatively straightforward.


Step 1

Locate the crown to adjust the moon phase complication.


Step 2

Depending on the watch model, you may need to pull the crown out to a specific position designated for adjusting the moon phase. some models have a push button to adjust the moon phase complication.

Step 3

Turn the crown or push the button to advance the moon phase indicator until it aligns with the current phase of the moon. For accuracy, it's advisable to consult a lunar calendar to determine the precise phase.

Step 4

Once set, simply push the crown back in, and your moon phase watch is ready to accompany you on your celestial journey.