At 40mm, this replica Portuguese IW358401 black represents the more compact end of the Portugieser Automatic range, sized for wrists that find the 42mm 7-day models slightly large. IWC introduced the IW358 series as a modernized take on the classic Portugieser proportions, and the black dial on this reference adds a contemporary weight that lighter dial colors do not carry. The smaller case diameter combined with a dark dial creates a watch that reads as refined rather than sporty.

Build Details

• Case diameter: 40mm
• Case material: stainless steel
• Dial: black with applied steel indices
• Functions: hours, minutes, small seconds at 6 o’clock
• Crystal: domed sapphire with anti-reflective coating
• Movement: automatic
• Strap: black alligator leather
• Water resistance: 30 meters

The small seconds subdial sits at 6 o’clock, which differs from the 9 o’clock positioning used on the larger 7-day Portugieser models. This layout gives the IW358401 a cleaner, more vertically oriented face.

What Collectors Notice

The 40mm Portugieser Automatic is the reference that iwc portugieser enthusiasts often recommend as a first entry into the collection. It strips away the power reserve indicator, the second subdial, and any calendar functions, leaving pure time-and-seconds simplicity. The black dial on this version amplifies the contrast between the polished steel hands and the dark background, making the watch easier to read in low light than silver or white alternatives. Applied indices rather than printed numerals add a three-dimensional quality visible from oblique angles. For a lighter mood, the blue-dialed IW358305 uses identical dimensions with a completely different character. Both represent the accessible end of the Portugieser lineup.

This vs Other Versions

Compared to the 42mm Portugieser Automatic with 7-day reserve, the IW358401 trades power reserve for compactness and dial simplicity. Collectors who value clean aesthetics over mechanical complexity often prefer this format. The 40mm case wears smaller than its diameter suggests because the thin bezel and domed crystal create an impression of contained elegance. For anyone seeking an iwc portuguese automatic in a restrained size, this replica Portuguese IW358401 black delivers the essential Portugieser design language without the additional subdial density.