The IWC Portugieser Chronograph IW371605 features a 41mm stainless steel case with a silver-plated dial, blue feuille hands, and applied blue Arabic numerals. Powered by the in-house Caliber 69355 automatic chronograph movement with 46-hour power reserve. The watch includes a small seconds subdial at 6 o'clock and chronograph counters at 12 o'clock, with a convex sapphire crystal with antireflective coating. Finished with a blue alligator leather strap and stainless steel pin buckle.