Housed in a round 44 mm white gold case measuring 13.5 mm in thickness, this IWC Portuguese Perpetual Calendar ref. IW502307 presents a grey dial protected by scratch-resistant sapphire crystal. The solid case back and tang buckle clasp on the alligator/crocodile leather strap complete a quietly formal aesthetic rooted in the Portuguese collection's long heritage.
An automatic movement drives the perpetual calendar complication, which tracks the date across months and leap years without manual correction. Water resistance is rated to 30 m / 99 ft, while the absence of a screw-in crown reflects the dress-watch character of the design.
Reference IW502307 occupies a compelling place in the Portuguese lineup, combining the gravitas of a white gold case with the practical sophistication of a perpetual calendar — a pairing suited to collectors who value both material quality and mechanical depth.
