IWC · Big Pilot

Strap for Big Pilot Perpetual Calendar Titanium / Black / Cellini

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
ReferenceIW5026-06 (aka: IW502606)
FamilyBig Pilot
MovementIWC caliber 51614 Hours, Minutes, Small Seconds | Date, Day, Month, Perpetual Calendar, Year Indicator | Moonphase | Power Reserve Indicator
CaseTitanium

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 IW5026-06 (aka: IW502606)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Big Pilot IW5026-06 (aka: IW502606), seen from the bench

The Big Pilot IW502606 features the IWC 51614 caliber with perpetual calendar complications, moon phases and power reserve indicator. The functions include hours, minutes, small seconds, full date with year indicator and moon phase display. The case features 22mm lugs for the strap.

Frequently asked questions

What is the lug width of the IWC Big Pilot IW5026-06?

The lug width of the IWC Big Pilot IW5026-06 is 22mm. This measurement is determined by the distance between the lugs on the watch case. A 22mm strap will fit perfectly without lateral play or forcing. Always verify the measurement before purchase by comparing the original strap or consulting official IWC specifications.

Which strap is recommended for the IWC Big Pilot IW5026-06?

For the IWC Big Pilot IW5026-06, we recommend straps in vegetable-tanned alligator leather (dark brown or natural) that balance the robustness of the titanium case with formal elegance. Shell cordovan is excellent for those desiring patina evolution over time. For sports use or humid environments, FKM vulcanised rubber offers superior grip and fluid resistance. NATO straps are compatible for casual variations.

How do I change the strap on the IWC Big Pilot IW5026-06?

The IWC Big Pilot IW5026-06 features fixed lugs integrated into the case. Use a spring bar tool to gently extract the spiral lugs from the holes. Do not apply excessive pressure to the titanium case, which, though resistant, should not be scratched unnecessarily. Insert the new strap by aligning the terminals with the holes and reinsert the lugs until the security click is felt.

Which aftermarket straps are compatible with the IWC Big Pilot IW5026-06?

All 22mm straps with straight terminals are compatible. On milanostraps.it you will find a selection of artisanal straps in alligator, calf leather, shell cordovan, rubber and fabric, customisable in length. The Casati Milano atelier also creates bespoke straps with personal leather selection and custom stitching. Always verify that the total length is appropriate for your wrist (recommended measurement 70-80mm of strap beyond the lugs).

How long does a leather strap last on the IWC Big Pilot IW5026-06?

A vegetable-tanned leather strap, with daily use and ordinary maintenance (periodic cleaning, protection from excessive moisture), lasts on average 3-4 years before the internal structure shows visible deterioration near the buckle. Shell cordovan, whilst more expensive, reaches 5-6 years thanks to the natural density of the leather. Vulcanised rubber persists up to 4-5 years in saline environments. The Casati Milano atelier provides an 18-month warranty on artisanal straps and offers regeneration services.

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