IWC · Big Pilot

Strap for Big Pilot Perpetual Calendar White Gold / Blue / Bucherer

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 diameter46 mm
ReferenceIW5026-36 (aka: IW502636)
FamilyBig Pilot
MovementIWC caliber 51564 Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Moonphase
CaseWhite 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 Big Pilot IW5026-36 (aka: IW502636)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Big Pilot IW5026-36 (aka: IW502636), seen from the bench

The Big Pilot IW502636 is equipped with the IWC 51564 caliber featuring perpetual calendar complications, moon phase indication, and small seconds. The watch offers hours, minutes, date, day, month, and year indicator on a multi-counter dial layout. The case features 22mm lugs for the strap.

Frequently asked questions

What lug width does the IWC Big Pilot IW5026-36 have?

The IWC Big Pilot IW5026-36 features a lug width of 22mm. This dimension corresponds to the space between the case attachment pins and is specific to this model. Any strap with lugs calibrated to 22mm will be perfectly compatible. To verify, measure the distance between the two lateral metal stems of the case.

What strap is recommended for the white gold Big Pilot?

For the Big Pilot IW5026-36 in white gold, we recommend alligator in dark tones (black, navy blue, chocolate brown), which creates visual contrast with the brushed case. Aged shell cordovan suits those who appreciate visible evolution over time. For informal contexts, cotton NATO provides versatility. Choice depends on usage context and preference for visible patina development.

How do you change the strap on a 22mm IWC watch?

Changing the Big Pilot strap requires extraction of the attachment pins using a specialist tool (pin remover). Position the watch on a soft cushion, locate the lateral pins, gently push them outward with the pin remover until the strap releases. Insert the new strap by aligning the lugs with the pins and reverse the operation. Consult an expert at Casati Milano for precise work without scratch risk.

Is there an aftermarket strap compatible with the IW5026-36?

Yes, any branded or artisanal strap with a 22mm lug width is compatible. Milano Straps offers a dedicated collection of customisable 22mm straps: available in alligator, calf leather, shell cordovan, NATO and technical rubber. These straps maintain construction quality and guarantee millimetre-perfect adherence to the Big Pilot pins without adjustments.

How long does a leather strap last on a watch like the Big Pilot?

Durability varies by material and frequency of use. Quality alligator subjected to daily wear maintains structural integrity for 4-6 years; shell cordovan, more robust, resists up to 7-8 years. Visible ageing (patina, streaking) is natural and desirable for enthusiasts. Constant exposure to water, perspiration and UV rays accelerates wear. With appropriate maintenance and storage, durability extends significantly.

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