IWC · Portofino

Strap for IWC Portofino IW3724-06

The Portofino Chronograph MecaQuartz Stainless Steel / Black / Bracelet takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
Not sure about the right strap, or can't find your watch?Message me on WhatsApp
Lug width20 mm
Case diameter38 mm
ReferenceIW3724-06 (aka: IW372406)
FamilyPortofino
MovementJaeger-LeCoultre caliber 631 Hours, Minutes, Small seconds | Date | Chronograph
Year2004 - 2005
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 20 mm · Ø 1.8 mm double flange · fitted with quick release from the factory (source IWC) · industry standard, no brand part number

Portofino Chronograph MecaQuartz Stainless Steel / Black / Bracelet — watch

What I'm asked about the IWC Portofino IW3724-06

What strap size does the IWC Portofino IW3724-06 take?

The IWC Portofino IW3724-06 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 Portofino IW3724-06 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 Portofino IW3724-06?

Yes, in 20 mm leather. On a 38 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the IWC Portofino IW3724-06?

A 20 mm box calf. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

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