Portugieser Chronograph Ceratanium® 41 mm, Ceratanium® with a black rubber strap, self-winding manufacture caliber 69355 with chronograph function | Reference Number IW110168

The IWC Ref. IW371631 combines sporty confidence with technical finesse. The 41-millimeter case made of Ceratanium® gives the chronograph a striking presence while appearing both modern and understated. On the black dial, Arabic numerals, precise scales, and the small seconds subdial create a clear layout that effortlessly facilitates the measurement of short time intervals. The self-winding manufacture caliber 69355, with a power reserve of up to 46 hours, ensures reliable and high-performance timekeeping. Sapphire crystal offers an unobstructed view of the dial and movement, underscoring the watch’s premium quality. The black rubber strap fits comfortably on the wrist and is securely fastened with a pin clasp. Water resistance up to 3 bar rounds out its suitability for everyday use. The limited edition of just 1,500 pieces lends this model a particularly exclusive character, making it a coveted rarity within the IWC collection.