IWC Portuguese Perpetual Calendar Platinum Reference IW502305

After releasing the 18K gold Portuguese perpetual calendars from the IW5021 and IW5023 ranges in 2010, IWC presents a platinum version of this high-complication watch.

Limited to 250 pieces, the new IWC Portuguese Perpetual Calendar platinum reference IW502305 features a silver-plated dial and black alligator leather strap.

IWC Portuguese Perpetual Calendar Platinum Reference IW502305

The 44.2 mm diameter case houses the IWC-manufactured 51613 self-winding perpetual calendar movement with a power reserve of seven days.

Technical details

Model: IWC Portuguese Perpetual Calendar Platinum Reference IW502305

Case
Material: Platinum
Case height: 15.5 mm
Diameter: 44.2 mm
Sapphire glass, convex, antireflective coating on both sides
See-through sapphire-glass back
Water-resistant 3 bar

Movement
IWC-manufactured 51613 calibre (50000-calibre family)
Mechanical self-winding movement
Pellaton automatic winding
7-day power reserve when fully wound
Jewels: 62
Power reserve display
Perpetual calendar with displays for the date, day, month, year in four digits and perpetual moon phase
Small hacking seconds
Glucydur®* beryllium alloy balance with high-precision adjustment cam on balance arms
Breguet spring
Rotor with 18-carat yellow gold medallion

Dial
Silver-plated

Strap
Black alligator leather strap

Edition
Limited edition of 250 watches