IWC Portugieser Eternal Calendar (Ref. IW505701) Watch

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Accompanied by the IWC Portugieser music exclusively produced by Hans Zimmer this beautifully crafted timepiece captures the fascination with eternity: introducing the Portugieser Eternal Calendar.

Our first “secular” perpetual calendar recognizes the different lengths of the months and adds a leap day every four years, while also taking into account the Gregorian calendar’s complex leap year exceptions. Over a timespan of 400 years, it will skip three leap years that would normally occur at the end of a century. What's more, its moon phase display is so accurate that it will only deviate by one day in 45 million years.
The Portugieser Eternal Calendar boasts an intricately finished platinum case with polished and brushed surfaces, a white lacquered glass dial and a double box-glass sapphire crystals. The glass dial lends the printing and appliques a floaty lightness. The characteristic minute scale is printed on a white lacquered flange sitting between the glass dial and the front glass.

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