Ref #: WGGAS23978

IWC Schaffhausen

Portugieser Annual Calendar Steel (IW503502)

The IWC ​Portugieser Annual Calendar (ref. IW503502) features the IWC-manufactured 52850 caliber mechanical automatic movement with an approximate 7-day power reserve when fully wound; midnight blue dial; annual calendar with displays for the date, day & month beneath 12 o'clock; power reserve display at 3 o'clock; small seconds subdial at 9 o'clock; sapphire-crystal, exhibition case back; and 44.2mm, stainless steel case on a black alligator strap secured by a stainless steel deployant clasp.

​About the IWC ​Portugieser Annual Calendar:
The newly developed annual calendar shows the month, date and day in three separate, semicircular windows. The date advance system takes the different lengths of the months into account. Only February and the leap years need to be corrected manually using the crown. The new IWC-manufactured 52850 caliber has two barrels that together generate a seven-day power reserve.
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