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    This ‘accurate Moon Phase’ Is A Bit Difficult

    The Mid-Autumn Festival is approaching, and the moon phase table has become a topic of discussion among table friends.


      The moon phase watch refers to a watch with a ‘lunar phase display function’. Based on this function, the wearer can grasp the dynamic changes of the moon’s overcast and clear between this square inch timepiece.

    Crescent Moon → Emei Moon → First Quarter Moon → Convex Moon → Full Moon → Convex Moon → Second Quarter Moon → Residual Moon → New Moon
      The specific changes of the moon phase display disk have been described in detail in the previous article, and we will briefly talk about it here. The overall sequence of the moon can be regarded as a dynamic cycle in the above picture, and the two complete moons on the moon phase display can be sequentially displayed on the disk according to this sequence.


      It is precisely based on the beauty of this moon phase display function that the watch adds more mysterious and romantic colors. Due to the more complicated production of this device, the moon phase watch has become a symbol of complex watches.
      Before that, we also shared with you many beautiful moon phase watches. But today, we will lead everyone to appreciate a distinctive moon phase watch, let everyone ‘experience’ the profound watchmaking heritage of high-end watch brands.
    The appearance is not simple


      In addition to Parmigiani Fleurier, a high-end watchmaking brand focused on continuous innovation, its restoration skills are equally top-notch. Although its reputation for the domestic market may be limited to the level of some professional collectors, it is undeniable that it has a superb watchmaking process.


      Let’s first look at the appearance of this moon phase watch. This world-wide QUANTIÈME PERPÉTUEL RÉTROGRADE watch, apart from the moon phase display and other functional configurations, looks at the design alone, which is also very outstanding.


      Different from the traditional dial manufacturing, Parmigiani watch factory uses the hand-machined engraving process on the dial of the watch. This process is extremely complicated and is entirely handmade. It requires a small amount of manual craftsmanship on the dial. Repetitive decorative patterns are engraved, and to date, only a few watchmakers have mastered this craft.

      This engraving pattern is not a simple shape. It uses the golden ratio and the Fibonacci spiral to ‘copy’ the scale-like layout of pine cones and the spiral structure of the nautilus shell on the surface. The beauty of this low-key luxury was finally formed.

      In addition to this manual machine-engraved model, Parmigiani also presents a beige matte model, a total of two complex watches.
    Configuration is not easy
      In addition to appearance, the most important thing is the function of the watch. So how is this watch different?


      This one-world QUANTIÈME PERPÉTUEL RÉTROGRADE watch has the high complexity of precise moon phases and retrograde perpetual calendar (date).

      Precise Moon Phase: The operating principle of the moon phase device is to display the movement of the moon on the moon phase disk according to a period of 29.5 days. On the moon phase disk, two moons are set up, with 59 teeth on the edge. The moon phase wheel is pushed forward by one tooth every day after being pushed by the transmission wheel. At this time, the changes of the moon phase profit and loss can be timely displayed on the dial. .
      However, there will be a problem here, because the precise rotation period of the moon is 28 days, 12 hours, 44 minutes, and 2.9 seconds, and these 59 toothed moon wheels are the average value of the moon phase profit and loss every 29.5 days, which is one week, so every 33 In each month, the material phase indicated by the moon phase will reach 24 hours.

    PF317 movement-The main splint and bridge are exquisitely chamfered and fish-scaled, all decorated with Geneva ripples

      And this Parmigiani moon phase watch integrates the precise moon phase device and the date device in the same module. It accurately records the moon phase through the gear system-this is more complicated than the traditional lunar calendar display, but only requires every Adjusted once in 122 years.

    Half-circle retrograde date dial-week, month display window-flat \\ leap year display window
    Parmigiani Universe QUANTIÈME PERPÉTUEL RÉTROGRADE (white frosted dial)

      Retrograde perpetual calendar (date): In addition to the moon phase function, the perpetual calendar itself is already one of the three complicated functions recognized in the bezel. Parmigiani also incorporates retrograde design into the device, enabling it to be based on specific The number of days of the month is automatically adjusted, including February-the number of days in the leap year can be automatically adjusted, and the complexity is evident.

    PF317 movement
      The watch is equipped with the PF317 movement inside, and the moon cam at the core is equipped with planetary gears, so it can achieve precise control of different days in February. The indicator of this device can be released from the center wheel on time, so that the date instantly jumps to the first day of the next month.

    Parmigiani Universe QUANTIÈME PERPÉTUEL RÉTROGRADE (white frosted dial)

      The thickness of the watch is only 12.1 millimeters. It is very difficult to install this mechanical device in a limited space.
    This time, Parmigiani’s ‘pet-loved’ one of the most sophisticated and elegant timepieces: the perpetual calendar-placed in the movement of the brand’s time-honored classic timepiece Toric. With its precise moon phases and retrograde perpetual calendar (date), this watch is a masterpiece of calendar timepieces with unparalleled complexity. Watch price: RMB 545000 (rock grey dial), RMB 536000 (white dial)