Sharing the IW501701 reference number, this replica Portuguese 4mm variant represents a specific iteration within the 42.4mm Portugieser Automatic family that carries subtle differences in dial execution and sourcing compared to other IW501701 listings. The Portugieser at 42.4mm has become one of the most recognized IWC silhouettes, built around slim bezels, oversized Arabic numerals, and the distinctive railway minute track that traces its lineage back to precision marine chronometers from the 1930s. This version maintains those core design codes while offering its own visual identity through specific finishing details.

Build Details

• Case diameter: 42.4mm
• Case material: stainless steel
• Dial: Arabic numerals with railway-style minute track
• Subdials: small seconds, power reserve indicator
• Crystal: domed sapphire glass
• Caseback: exhibition type
• Strap: leather with deployment mechanism

The 42.4mm dimension places this reference in the mid-range of the current Portuguese lineup, larger than the 40mm chronograph series but smaller than the 44mm-plus perpetual calendar models.

What Collectors Notice

Within the IW501701 reference family, collectors focus on dial color accuracy, the depth of the numerals, and the finish quality of the hands. The Portugieser Automatic uses leaf-shaped hands that taper to fine points, and the quality of that taper affects legibility at oblique angles. The power reserve display and small seconds subdial should sit at precisely 3 and 9, creating mirror symmetry across the dial center. For a different complication approach within the Portuguese range, compare this automatic against the Perpetual Calendar Rose Gold IW344202, which adds day-date-month-year tracking to a similar case philosophy. Both are entries in the Portuguese collection but occupy different rungs of mechanical complexity.

This vs Other Versions

Multiple vendors list IW501701 variants with slightly different finishing specifications, making direct comparison important when evaluating options. The core architecture remains the same across all IW501701 builds: 42.4mm steel case, seven-day power reserve movement, domed sapphire crystal, and exhibition caseback. Variations typically appear in strap color, clasp type, and the specific shade of the dial finish. This replica Portuguese 4mm variant gives buyers another option within the IW501701 family for those comparing across available executions.