IWC · Portugieser

Strap for Portugieser Constant-Force Tourbillon Edition “150 Years” Platinum / 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 straps All IWC

Lug width20 mm

Case diameter46 mm

ReferenceIW5902-03 (aka: IW590203)

FamilyPortugieser

MovementIWC caliber 94805 day / Night Indication, minutes, small seconds | moonphase | Constant Force Mechanism, tourbillon escapement, power reserve indicator

Year2018

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 IW5902-03 (aka: IW590203)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Portugieser IW5902-03 (aka: IW590203), seen from the bench

The Portugieser IW590203 is equipped with the in-house caliber 94805 that integrates a constant-force mechanism and a tourbillon escapement. The functions include day/night indication, small seconds, moon phases, and power reserve indicator. The movement features an advanced technical configuration with a visible tourbillon on the dial.

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