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Moon phaseMoon phase timepieces provide a reminder of watchmaking’s numerous and extremely ancient links to astronomy.It was in 1983 that Blancpain announced a world first in this speciality: the smallest self-winding movement displaying the phases of the moon, the day, the month and the date. This set the stage for a vigorous and lasting revival of moon phase watches, and helped rekindle the interest in mechanical watches generally. |
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Symphony of gearsThe genius of this masterpiece is how all the gears turn, both independently and in connection with each other. The disk that displays the date has 31 teeth. |
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Day starThe disk that displays the days is a seven-pointed star wheel called a day star, or seven-star. Every 24 hours, the mechanism advances by one gear tooth. |
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Symbol of renewalThe small revolving moon on the dial symbolises Blancpain’s rebirth and the ancient relationship between horology and astronomy. |
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Moon phase indicatorThe moon phase indicator is run by a 59-tooth star, which corresponds to twice the full lunar cycle of 29.5 days. |
