IWC IW5026 (Pre-owned - Excellent) — USD 34,995 on eBay

The IWC Portuguese Perpetual Calendar reference IW502618 represents the brand's approach to combining the Portuguese case architecture with perpetual calendar complications. This reference distinguishes itself within the Portuguese lineup through its blue dial execution and perpetual calendar functionality housed in a substantial 44.2mm case. The stainless steel case measures 44.2mm in diameter and features a fixed bezel configuration. A sapphire crystal protects the blue dial, while water resistance extends to 30 meters. The watch operates via an automatic movement, with the perpetual calendar mechanism providing the complex calendar indications that define this series within the Portuguese collection. This reference appeals to collectors seeking perpetual calendar complications in a larger case format. The blue dial treatment offers an alternative to other dial configurations within the Portuguese Perpetual Calendar series. The 44.2mm case size positions this reference for those preferring substantial wrist presence, while the stainless steel construction provides accessibility within IWC's perpetual calendar offerings.