IWC Schaffhausen Portugieser Chronograph 40.9mm Stainless Steel IW371491 BLUE ARABIC BLACK CROCODILE

From a collector’s standpoint, the IW371491 represents a significant evolution in the Portugieser lineage, integrating the collection’s pioneering design language with a more contemporary 40.9mm stainless steel case. The dial is a key innovative feature, utilizing a deep blue lacquer with applied Arabic numerals filled with white luminescence, a configuration that enhances legibility while maintaining a clean aesthetic. The feuille-style hands for the time and the slim, counter-balanced chronograph hands are thermally blued steel, a finishing technique that provides a distinct visual contrast. The watch is presented on a black crocodile leather strap with a stainless steel pin buckle, a classic pairing that underscores its dress-chronograph identity. This model’s design is a direct continuation of IWC’s groundbreaking approach to instrument watches, balancing a large, readable display with a refined case profile.

The watch is powered by the IWC-manufactured 69355 calibre, a pioneering movement for the brand as it marked a shift to in-house chronograph mechanisms in this collection. This automatic column-wheel chronograph operates at 28,800 vph and offers a 46-hour power reserve. The complication layout is a classic bi-compax design with a running seconds sub-dial at 6 o’clock and a 30-minute chronograph counter at 12 o’clock. The movement’s construction includes a Pellaton winding system, an innovative and robust mechanism known for its efficiency. The chronograph function is activated via a screw-down pusher system, ensuring water resistance to 30 meters. This technical specification positions the watch as a serious instrument, moving beyond a simple dress watch into the realm of functional, high-precision tool watches.

This specific example is in mint condition, indicating it shows no visible signs of previous wear on the case, lugs, crystal, or dial. It is accompanied by its official IWC warranty card, which is critical for authentication and serves as the primary documentation for its provenance. In the current market, the Portugieser Chronograph remains one of IWC’s most collectible and recognizable models. The combination of the 40.9mm case diameter, which appeals to modern tastes, the high-contrast blue Arabic dial, and the foundational 69355 calibre creates a strong value proposition. Its market position is stable, with a well-documented history of demand among both entry-level collectors and seasoned enthusiasts seeking a definitive example of IWC’s avant-garde approach to the classic chronograph.