What is a moon phase watch?
The moon phase watch is a traditional watch function that displays the moon's waxing and waning on a small dial, allowing you to appreciate the moon's full and waning phases on a small dial. The cycle of the moon phases is very stable, with each lunar cycle lasting 29.53 days. The lunar cycle of most watch devices is measured in units of 29.5 days. Therefore, the watch will have a moon phase deviation of one day in about two and a half years.
As early as 1925, the world's first Patek Philippe watch equipped with a moon phase function was launched. At that time, the world was still in the age of navigation, and the emergence of moon phase watches was very important. Because changes in the moon phase are directly related to tides, they affect the level of water levels. When weather conditions prevent sailors from seeing the moon, the moon phase becomes a tool that can be relied upon during navigation. Therefore, moon phase watches quickly became a popular feature in watches.
ORIENT STAR currently launches many watches equipped with moon phase function in the M45 series, especially equipped with F7M62 movement, which allows the watch to have "moon phase", "date display", "power reserve display" and movement window design at the same time. It is an extremely rare combination. Click here to see the moon phase watches available for purchase
Another thing that people confuse with moon phase watches is "sun and moon phase watches". Since the moon appears in both functions, it is no wonder that it is easily misunderstood.
What is a "sun and moon phase watch"?
A "Sun and Moon Phase Watch" has the sun and moon painted on the small dial of the watch. The sun turns out during the day, and the moon turns out at night to show the change of time between day and night. The principle of this style is the same as the common functional 24-hour hand. The 24-hour display is a common basic function of watches, and the mechanical structure is not complicated. The "sun and moon phase" function is changed from the 24-hour pointer type to the turntable type. The sun and moon are alternately displayed on the turntable instead of the pointer pointing to the digital time. This is the designer's ingenuity.
One of Orient's very popular series, Sun & Moon "Sun and Moon Phase Watches". The designer set a small dial painted with the sun and moon on the watch to display the day and night of time in a charming way. Due to its relatively simple structure and outstanding appearance, the Orient Sun & Moon watch can be launched at an entry-level price. No wonder it has always been popular with the public. Click here to view the sun and moon phase watches available for purchase
Distinguish between moon phase chart and sun and moon phase chart
The easiest way to tell the difference between a moon phase watch and a sun and moon phase watch is to pay attention to whether there is a sun on the dial. If the sun and moon appear alternately when adjusting the time, the watch is a "sun-moon phase watch." If you adjust the watch time and walk for a whole day, the moon will only move slightly, and the watch is a "moon phase watch". In 2024, don’t mess with moon phase tables and sun and moon phase tables anymore.
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