IWC · Portugieser

Strap for Portuguese Chrono-Automatic White Gold / Silver

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
Lug width20 mm
Case diameter41 mm
ReferenceIW3714-12
FamilyPortugieser
MovementIWC caliber 79350 hours, minutes | Chronograph
Year1998 - 2012
CaseWhite Gold

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Portugieser IW3714-12

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW3714-12, seen from the bench

The Portugieser represents one of IWC's historic lines, characterized by a classic design with Arabic numerals and a clean layout. It is powered by the IWC 79350 caliber with chronograph function in addition to hours and minutes indication. The lugs measure 20mm in width.

Frequently asked questions

What is the lug width of the IWC Portugieser IW3714-12?

The lug width of the IW3714-12 measures exactly 20 millimetres. This dimension is standard for wristwatches in this category: sufficient to accommodate straps of medium-to-high thickness whilst maintaining harmonious proportions. Verify compatibility with any aftermarket strap by checking that its terminal measures precisely 20 mm in width at the insertion point into the case.

What is the best strap material for the Portugieser IW3714-12?

Alligator represents the optimal choice: its regular, compact grain emphasises white gold tonality without visual competition, whilst guaranteeing plural-year durability. Calf leather in vegetable tanning constitutes a refined alternative with natural patina development. For moderate sporting contexts, a cotton NATO may prove coherent with the watch's minimalist aesthetic.

How do you change the strap on an IWC Portugieser IW3714-12?

Strap replacement requires a springbar tool (supplied with Milano Straps straps) to release the elastic pins in the case lugs. Position the tool in the lug recess, apply gentle lateral pressure to compress the internal spring, and extract the pin. Repeat on the opposite side, then insert the new strap and reintroduce the pins until hearing the locking click. Should you prefer not to operate manually, Casati Milano offers replacement service at the atelier.

Is an aftermarket strap compatible with the IWC Portugieser IW3714-12?

Yes, any strap with 20 mm lug width is compatible. Milano Straps offers a complete collection of artisanal straps for this dimension, customisable in material (alligator, calf, cordovan), colour and constructive details. All our products guarantee constructive quality and structural solidity equivalent to official IWC offerings, with the advantage of aesthetic flexibility and reduced delivery timescales.

How long does a leather strap last on the Portugieser?

Longevity depends upon intensity of use and material chosen. Quality alligator in vegetable tanning, with moderate daily cadence, maintains structural and aesthetic integrity for 3-5 years. Vegetable-tanned or mass-dyed calf leather exhibits similar lifespan. With periodic maintenance (conditioning with specific creams, rapid drying following humidity exposure), strap life extends significantly. Milano Straps offers regeneration service for worn straps, preserving the historical strap as an element of sentimental value.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only