Perpetual calendar and moon phase display is an amazing design independently developed by IWC. In the mechanical wristwatch, its precision is particularly eye-catching. It takes 29 days, 12 hours, 44 minutes and 3 seconds for the moon to orbit the earth. How to convert this value into a moon phase display cycle using only gears of different sizes. Generations of watchmakers are racking their brains and trying. The traditional moon phase display on a mechanical wristwatch needs to be corrected within a relatively short period. In the mid-1980s, Mr. Kurt Klaus, the inventor of the IWC's first perpetual calendar watch and the Swiss national treasure master watchmaker, succeeded in bringing the period between the Moon phase of the watch and the real lunar cycle. The error is reduced to one day's deviation every 122 years. In 2003, with the advent of the 5000 large-scale movement, this great achievement was further optimized. Thanks to the large dimensions of the movement, the moon phase display gears have also been enlarged and a more precise drive has been achieved, enabling an unmatched accuracy of the moon phase display, which will accumulate errors every day after 577.5 years .Luxury Replica IWC Portugieser Watches for sale from China.
The IWC Portuguese Perpetual Calendar (model: 5034) with a bi-monthly display shows the changing phases of the phases of the moon and the moon in a mirror-symmetrical manner. This is also the initiative of the IWC IWC engineers to allow the wearer of the Southern Hemisphere to also see the correct moon phase position on the dial. For the first time, this watch no longer displays a countdown display showing the number of days remaining until the next full moon. Instead, the watch designers designed the small dial of the entire bi-monthly phase to be a starry night sky. The small dial was the same color as the big dial. In this way, the moon and stars are suspended in the boundless sky. The application of the IWC Portugal classic track-type minute ring is another new design feature. As a result, this watch is similar in appearance to the classic Portuguese founding watch. The date and week show the same color as the dial, making the entire dial look more balanced and elegant. The single moon phase watch model (model: 5033) has no apparent change in appearance except for a few very slight design adjustments. Only the new arched edge glass mirrors visually reduce the thickness of the watch.New Luxury Replica Hublot Techframe Ferrari Watches for you to choose.
The IWC Portuguese Perpetual Calendar (model: 5034) with a bi-monthly display shows the changing phases of the phases of the moon and the moon in a mirror-symmetrical manner. This is also the initiative of the IWC IWC engineers to allow the wearer of the Southern Hemisphere to also see the correct moon phase position on the dial. For the first time, this watch no longer displays a countdown display showing the number of days remaining until the next full moon. Instead, the watch designers designed the small dial of the entire bi-monthly phase to be a starry night sky. The small dial was the same color as the big dial. In this way, the moon and stars are suspended in the boundless sky. The application of the IWC Portugal classic track-type minute ring is another new design feature. As a result, this watch is similar in appearance to the classic Portuguese founding watch. The date and week show the same color as the dial, making the entire dial look more balanced and elegant. The single moon phase watch model (model: 5033) has no apparent change in appearance except for a few very slight design adjustments. Only the new arched edge glass mirrors visually reduce the thickness of the watch.New Luxury Replica Hublot Techframe Ferrari Watches for you to choose.
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