Debuting in 2010, the IWC Portugieser Perpetual Calendar 5023 combines a 7-day self-winding movement with Kurt Klaus’s perpetual calendar mechanism, originally designed for the 1985 Da Vinci. Housed in a 42.2mm case with sapphire crystals on both sides, it includes a 'Single Moon' display for hemisphere-specific tracking. Reference IW5023-02 features a red gold case and silver dial.
Shape
Round
Lug Distance
22.00 mm
Material
Red Gold
Glass
Sapphire
Thickness
15.50 mm
Diameter
44.20 mm
Water Resistance
30.00 m
Dial Color
Silver
