IWC · Portugieser

Strap for Portuguese Chrono-Automatic Yellow 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
ReferenceIW3714-16
FamilyPortugieser
MovementIWC caliber 79350 Hours, Minutes | Chronograph
CaseYellow 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 IW3714-16

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW3714-16, seen from the bench

The Portugieser IW3714-16 is a 40.90 mm yellow gold chronograph watch featuring the IWC 79350 manufacture movement with annual perpetual calendar complication. It has a white dial with Breguet numerals and tachymetric scale, transparent caseback, and 60 meters water resistance. The lug width is 20 mm, designed to balance the case proportions with the bracelet transition.

Frequently asked questions

What is the correct lug width for the IWC Portugieser IW3714-16?

The IWC Portugieser IW3714-16 uses a lug width of 20 millimeters. To verify, measure the distance between the two inner pins of the case (the lugs that support the strap). This measurement is essential to ensure proper strap insertion into the case attachments.

What strap material is recommended for the Portugieser IW3714-16 in yellow gold?

Alligator in brown or cognac tones is the noblest solution and visually coherent with the yellow gold case. Vegetable-tanned calf leather represents an ecological alternative that develops a beautiful patina over time. Shell cordovan offers natural water resistance and a sophisticated bordeaux color. We do not recommend synthetic materials on this prestigious timepiece.

How do I change the strap on my IWC Portugieser IW3714-16?

You will need a spring bar tool. Position the tool on one side of the inner lug of the case, press gently and push the strap toward the center of the case. The pin will retract, freeing the strap. Repeat on the other side. To install the new strap, align the pins with the attachments and insert until you hear a click.

Can I use aftermarket straps compatible with my IWC Portugieser?

Yes, all straps with a 20mm lug width are compatible with the IW3714-16. Always verify the exact measurement (20mm inner-to-inner) before ordering. High-quality artisanal straps, such as those produced by Casati Milano or available on MilanoStraps, are specifically designed to guarantee construction quality equivalent to the watch.

How long does a leather strap typically last on a watch like the Portugieser?

A high-quality leather strap (alligator, calf, shell cordovan) typically lasts 2-4 years with daily use, varying based on tanning quality, sun exposure, and perspiration. Vegetable tanning tends to age visually better, developing a fascinating patina. Straps handcrafted by Casati Milano include an 18-month warranty against manufacturing defects.

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