IWC · Portugieser

Strap for Portugieser Tourbillon Rétrograde Chronograph Platinum / Silver

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 straps All IWC

Lug width20 mm

Case diameter44 mm

ReferenceIW3940-06 (aka: IW394006)

FamilyPortugieser

MovementIWC caliber 89900 hours, minutes, small seconds | Chronograph, Flyback, column wheel | tourbillon escapement

Year2020

CasePlatinum

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Portugieser IW3940-06 (aka: IW394006)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW3940-06 (aka: IW394006), seen from the bench

The IWC Portugieser IW3940-06 is a platinum sports chronograph from the iconic Portugieser family, established in 1940. It features a 44.00mm platinum case with the IWC caliber 89900 movement, combining a column-wheel chronograph with flyback function, tourbillon, and perpetual calendar complication. The lug width is 20mm.

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