IWC Portugieser Perpetual Calendar Double Moon – 18kt White Gold – Ref. IW503203

An Eternal Masterpiece in Horology

The IWC Portugieser Perpetual Calendar Ref. IW503203 embodies the pinnacle of mechanical ingenuity, bringing together timeless aesthetics with one of watchmaking’s most revered complications — the perpetual calendar. Crafted in luxurious 18kt white gold and featuring a mesmerizing midnight blue dial, this masterpiece offers not just timekeeping, but a legacy on the wrist.

The 44.2mm 18kt white gold case exudes quiet authority and sophistication. Its polished and brushed surfaces catch light beautifully, complementing the deep blue dial while maintaining the elegant proportions that define the Portugieser line. Sapphire crystals front and back showcase IWC’s renowned finishing, ensuring the movement is as captivating as the dial.

The blue dial presents a perfect visual harmony of perpetual calendar indications. Four subdials display the date, day, month, leap year, and a 7-day power reserve, while the signature double moon phase complication at 12 o’clock is accurate to one day in 577.5 years. Gold-plated hands and applied numerals contrast sharply against the dial, ensuring clarity and refinement.  
 

Powering the IW503203 is the IWC-manufactured Caliber 52615, an automatic movement featuring the Pellaton winding system with ceramic components for maximum durability. Twin barrels deliver a full 7-day power reserve, while the perpetual calendar mechanism automatically accounts for the differing lengths of months and leap years without adjustment until 2100. The double moon phase display represents the lunar cycle in both hemispheres with breathtaking precision.

Functions: Hours, minutes, seconds, perpetual calendar (day, date, month, year, leap year), double moon phase, 7-day power reserve

CONDITION:

This Timepiece is in an Unworn Condition Complete with Box & Papers Accompanied with a full Two-Year Warranty from Date of Purchase and a Full Value Appraisal