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IWC · Portugieser

Strap for IWC Portugieser IW3584-02

The Portugieser Automatic 40 White Gold / Ice Blue takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll IWC
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Lug width20 mm
Case diameter40 mm
ReferenceIW3584-02 (aka: IW358402)
FamilyPortugieser
MovementIWC caliber 82200 Hours, Minutes, Small seconds
Year2024
CaseWhite Gold

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 20 mm · Ø 1.8 mm double flange · fitted with quick release from the factory (source IWC) · industry standard, no brand part number

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Portugieser Automatic 40 White Gold / Ice Blue — watch

Your watch with our straps

Portugieser IW3584-02 with Grand Cavalier Leather Strap Orange
Portugieser IW3584-02 with Vintage Brown Calfskin Strap — Natural Patina
Portugieser IW3584-02 with Brown Italian Leather Strap

Calf, Orange

Grand Cavalier Leather Strap Orange

€120

★ 4.9 · 12

See the strapAll 20 mm straps

1 / 83

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

What I'm asked about the IWC Portugieser IW3584-02

What strap size does the IWC Portugieser IW3584-02 take?

The IWC Portugieser IW3584-02 needs 20 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 IW3584-02 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 IW3584-02?

Yes, in 20 mm leather. On a 40 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the IWC Portugieser IW3584-02?

A 20 mm calf strap, for every day. You'll find it ready in the 20 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