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The technical refinements of the Da Vinci Perpetual Calendar
Digital Date-Month
Your IWC watch shows you the time in hours, minutes and seconds with
hands. For the first time from IWC, it also shows the date and the month in a
large digital display, and the leap year. With the help of the integrated flyback
chronograph, you can measure any period of time in seconds, minutes and
hours. Stop times can be added together. The mechanical movement with
automatic winding has 52 jewels (synthetic rubies) and a power reserve of
about 68 hours when fully wound. Your Da Vinci Perpetual Calendar Digital
Date-Month is protected by sapphire glass, convex on one side, of hardness
grade 9 on the Mohs' scale. Your watch is water-resistant 3 bar. In addition to
the uniqueness of its functions, it is the ease with which it can be used that
distinguishes this watch from all other complicated timepieces. To ensure that
this extraordinary watch continues to perform faultlessly in the future, it is
essential to observe a few important operating instructions.
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