Aside from the date, day, month and year in four digits, the Portuguese Perpetual Calendar also indicates the number...of days remaining until the next full moon. The display showing its course and featuring mirror images of the moon in the northern and southern hemispheres deviates from the moon's actual progress by just 12 seconds in one lunar period. The moon phase displays used in the Da Vinci Perpetual Calendar Edition Kurt Klaus are astonishingly accurate and deviate by just one day, after 122 years. The Portuguese Perpetual Calendar is even more precise. Larger moon phase wheels with different numbers of teeth reduce the deviation so drastically that a future inheritor of this watch would theoretically need to have it adjusted by only one day in 577.5 years.
Aside from the date, day, month and year in four digits, the Portuguese Perpetual Calendar also indicates the number of days remaining until the next full moon. The display showing its course and featuring mirror images of the moon in the northern and southern hemispheres deviates from the moon's actual progress by just 12 seconds in one lunar period. The moon phase displays used in the Da Vinci Perpetual Calendar Edition Kurt Klaus are astonishingly accurate and deviate by just one day, after 122 years. The Portuguese Perpetual Calendar is even more precise. Larger moon phase wheels with different numbers of teeth reduce the deviation so drastically that a future inheritor of this watch would theoretically need to have it adjusted by only one day in 577.5 years.
Manufacturer Reference #
IW503202
Case Size
44 mm diameter
Case Material
Rose/Red/Pink Gold
Movement
Automatic
Case Thickness
15.5 mm
Water Resistance
30 meters
Strap/Bracelet Material
Alligator/Crocodile
Circa
Condition
i
The following define the various condition types:
Mint - Mint condition
Excellent - Like new – may have slight surface scratches
Very Good - May have any of the following: light scratches; slightly stretched bracelet; patina on dial, hands, or bezel
Item Number
IWC0140204
Features
Annual Calendar, Date, Day, Month, Moon Phase, Perpetual Calendar, Power Reserve, Second Hand
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Delivery Method
Estimated Delivery Time
Price
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5-Year Warranty
Enjoy guaranteed protection from Bucherer. Together with the standard manufacturer’s warranty and the complimentary Bucherer warranty, this watch is guaranteed coverage for up to five years. This exclusive guarantee is reserved for new watches purchased at Bucherer.
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