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IWC · Portugieser

Strap for IWC Portugieser IW325-03

The Portugieser 325 Black / Sector / Feuille takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

19mm
19 mm strapsAll IWC
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Lug width19 mm
Case diameter42 mm
ReferenceIW325-03 (aka: 325)
FamilyPortugieser
MovementIWC caliber 74 Hours, Minutes, Small seconds
Year1939 - 1970
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 19 mm · Ø 1.8 mm double flange · industry standard, no brand part number

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Portugieser 325 Black / Sector / Feuille — watch

Straps for the Portugieser IW325-03

Selected for the 19 mm lug width

All 19 mm straps →

What I'm asked about the IWC Portugieser IW325-03

What strap size does the IWC Portugieser IW325-03 take?

The IWC Portugieser IW325-03 needs 19 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 IW325-03 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 IW325-03?

Yes, in 19 mm leather. On a 42 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the IWC Portugieser IW325-03?

A 19 mm calf strap, for every day. You'll find it ready in the 19 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