IWC · Portugieser

Strap for Portuguese Perpetual Calendar 5022 Rose Gold / Silver

The Portuguese Perpetual Calendar 5022 Rose Gold / Silver takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

22mm
Lug width22 mm
Case diameter42 mm
ReferenceIW5022-13 (aka: 5022-13, IW502213)
FamilyPortugieser
MovementIWC caliber 51613 hours, minutes, small seconds | date, day, month, perpetual calendar, year indicator | moonphase | power reserve indicator
Year2006 - 2012
CaseRose Gold

Spring bar

Swiss Standard universal spring bars

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

Straps for the Portugieser IW5022-13

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Portugieser IW5022-13, seen from the bench

The Portugieser IW5022-13 in 42.3mm rose gold represents the contemporary evolution of an icon created in 1939. The watch features the in-house IWC caliber 51613, an automatic perpetual calendar movement that manages months, days, year, and lunar cycle without intervention until 2100. The rose gold case with its distinctive warm tone captures light naturally, while maintaining the design's functional purity: clean dial, classical Arabic numerals, balanced subdials, and harmonious proportions. The 22mm lug width enables reliable strap compatibility without play or excessive tension on the pins.

Frequently asked questions

What is the exact lug width of the IWC Portugieser IW5022-13?

The lug width of the Portugieser IW5022-13 is 22mm. This specification is unique to this reference: do not confuse it with historical versions featuring 20mm or sport variations with 24mm. To verify compatibility, the lower lug of the case must accommodate exactly 22mm strap thickness without lateral play.

Which strap is most suitable for the Portugieser IW5022-13 in rose gold?

Mississippi alligator in dark tones—midnight blue, deep brown, black—represents the natural pairing. The geometric texture of the grain dialogues perfectly with the luminosity of rose gold. Alternatively, shell cordovan with developed patina over time, or structured calf with vegetable tanning. NATO is discouraged: too casual for the watch's formal identity.

How do I change the strap on my Portugieser without damaging the watch?

Position the watch on a soft cloth. Using a small tool—a dedicated lever or the blunt edge of a smooth knife—gently lift one of the elastic pins that secure the strap to the lugs. Once the pin is extracted, the strap releases. Insert the pin into the new strap aligning the holes, then insert the pin into the first lug and press until locked. Repeat on the other side. Verify the strap is perfectly aligned to the lugs before wearing.

Is an aftermarket strap truly compatible with the Portugieser IW5022-13?

Yes, provided it is constructed for the 22mm lug width. Quality aftermarket straps—particularly artisanal ones—respect thickness and width standards. However, always verify with the manufacturer that they accept compatible spring bars (diameter 1.6–1.8mm, length 15–16mm for this model). Avoid low-quality generic straps: the watch's value deserves serious construction.

How long does a leather strap last on the Portugieser IW5022-13?

Durability depends on material and usage. Quality artisanal alligator or cordovan maintains structural integrity for 5–8 years with regular maintenance (cleaning, annual conditioning). Structured calf has similar longevity. Wear predominantly affects edges and flex zones. A skilled atelier relocates spring bars and repairs minor tears without complete re-investment. Patina—natural aging—is part of an authentic strap's beauty, not a defect.

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

Bespoke straps for IWC, in the atelier or by video call: casatimilano.com