Details:
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 calibre has two barrels that together generate a seven-day power reserve.

Specification:

Watch Style Classic
Gender Men's
Case Form Round
Case Material Rose Gold 18k
Case Diameter 44.2 mm
Case Thickness 15.3 mm
Case Back Transparent
Bezel Material Rose Gold 18k
Bezel Function Fixed
Water Resistance 30 m
Dial silver-plated
Movement Automatic
Calibre 52850
Functions Hours; Minutes; Seconds; Date; Day of the week; Month; Power Reserve
Complications Annual Calendar
Power Reserve 168 hours
Movement Features Number of jewels - 36
Bracelet/Strap Crocodile/Alligator
Strap Color Black
Buckle Material Rose Gold 18k
Buckle Type Tang Buckle
Alternative Reference IW503504