IWC · Pilot

Strap for Pilot's Watch Mark XVIII Military Edition Bats Legacy

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
Lug width20 mm
Case diameter40 mm
ReferenceIW327024
FamilyPilot
MovementIWC caliber 30110 hours, minutes, seconds | date
Year2020
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Pilot IW327024

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pilot IW327024, seen from the bench

The IWC Pilot features the caliber 30110 with hour, minute, second and date functions. The case has 20mm lugs for the strap. The movement provides the essential time indications in a three-hand configuration with date display.

Frequently asked questions

What is the lug width of the IWC Pilot IW327024?

The IWC Pilot IW327024 features a lug width of 20mm. This measurement is taken between the two spring bar pins on the case. The 20mm standard opens access to a comprehensive selection of compatible artisanal straps, both in leather and rubber, offering flexibility in customisation and aesthetic renewal.

Which strap is most suitable for the IWC Pilot IW327024?

The optimal choice depends on intended use. For formal occasions and travel, we recommend alligator with regular vertical grain or vegetable-tanned calf leather, which develop subtle patina over time. If sporty character and practicality are priorities, a high-density nylon NATO retains the tool-watch functionality. Rubber straps excel in diving and moisture-intensive scenarios. Each material acquires its own narrative patina, enriching the Pilot with personal history.

How do you change the strap on the IW327024?

Position the watch face-down on a soft cloth. Using a spring bar tool, push the spring bar pin inward to release the strap from one lug, then repeat on the opposite side. Align the new strap's holes with the case lugs and press firmly until the spring bar clicks into position. If unfamiliar with the procedure, engage a professional watchmaker to prevent case damage.

Does the IW327024 accept compatible aftermarket straps?

Yes, entirely. The 20mm lug width is standard in the luxury watch market and accommodates high-quality artisanal straps without mechanical compromise. Verify that straps are specifically dimensioned for 20mm, and that the buckle or deployante clasp offers reliable adjustment flexibility. Custom straps further permit monogramming, choice of thread colour, and selection of noble leathers such as shell cordovan or alligator.

How long does a leather strap last on the Pilot?

A quality leather strap—whether vegetable-tanned or alligator—typically endures 4–7 years with regular wear, as leather is a living material subject to ageing and patination. Durability depends on environmental humidity, frequency of wear, UV exposure, and maintenance care. A well-preserved vegetable-tanned calf strap may exceed 10 years, developing a patina that enriches aesthetic character. Rotating multiple straps prolongs the lifespan of each.

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