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IWC · Portugieser

Strap for IWC Portugieser IW3712-14

The Portugieser Chrono-Rattrapante Stainless Steel / Italy takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

18mm
18 mm strapsAll IWC
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Lug width18 mm
Case diameter41 mm
ReferenceIW3712-14 (aka: 3712-14, IW371214)
FamilyPortugieser
MovementIWC caliber 76240 Hours, Minutes | Chronograph, Rattrapante
Year2006 - 2006
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Standard spring bar · length 18 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Portugieser Chrono-Rattrapante Stainless Steel / Italy — watch

Your watch with our straps

Portugieser IW3712-14 with Vintage Brown Calfskin Strap — Natural Patina
Portugieser IW3712-14 with Brown Italian Leather Strap
Portugieser IW3712-14 with Black Saffiano Strap Ecru Stitching

Calf, Brown

Vintage Brown Calfskin Strap — Natural Patina

€98

★ 4.9 · 11

See the strapAll 18 mm straps

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Real photos of the strap and the case. No generated images.

What I'm asked about the IWC Portugieser IW3712-14

What strap size does the IWC Portugieser IW3712-14 take?

The IWC Portugieser IW3712-14 needs 18 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the IWC Portugieser IW3712-14 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the IWC Portugieser IW3712-14?

Yes, in 18 mm leather. On a 41 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the IWC Portugieser IW3712-14?

A 18 mm box calf. You'll find it ready in the 18 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

For changing the strap

Classic Strap and Bracelet Removal Tooltwo-tip spring bar tool→Milano Straps Premium Swiss Standard Watch Bucklestang buckle, steel or PVD→Leather Conditioner Milano Strapsnourishes and protects the strap→Casati Milano Rectangular Epsom Leather Travel Case — Brownfor the watch and spare straps→

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.

Request an appointment →

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

Bespoke straps for IWC, in the atelier or by video call: casatimilano.com

Updated on · by Antonio Zichichi