IWC · Pilot

Strap for Pilot's Watch Mark XVIII Hodinkee

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 diameter39 mm
ReferenceIW3248-01 (aka: IW324801)
FamilyPilot
MovementIWC caliber 35100 hours, minutes, seconds
Year2019
CaseCeratanium

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 IW3248-01 (aka: IW324801)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pilot IW3248-01 (aka: IW324801), seen from the bench

The IWC Pilot IW3248-01 embodies Schaffhausen's aeronautical heritage in contemporary form. This chronograph features a 39mm Ceratanium case—a composite material combining titanium robustness with ceramic scratch resistance—paired with the internal IWC 35100 automatic caliber. The 20mm lug width accommodates a broad range of artisanal strap solutions proportioned to modern wrist morphology and the case's dimensions.

Frequently asked questions

What is the lug width of the IWC Pilot IW3248-01?

The lug width of the IWC Pilot IW3248-01 is 20mm. This is the distance between the two horizontal lugs (pins) that attach the strap to the case. This standard measurement allows you to pair an extensive catalogue of compatible bespoke straps without installation compromises.

Which strap is most suitable for the IWC Pilot IW3248-01?

For the IW3248-01 with Ceratanium case, the ideal strap is alligator or calf leather with vegetable tanning. These materials provide aesthetic elegance without competing with the neutral grey tone of the case. Colour should be dark brown (mahogany, teak) or black, to create readable contrast whilst maintaining sobriety.

How do I change the strap on my IWC Pilot IW3248-01?

Strap replacement requires a specific tool (spring bar tool) to remove the metal pins from the current strap. Once the lugs are freed, the new 20mm strap is installed identically: the two pins are inserted into the case lugs, one per side. If you lack experience, a jeweller or specialist atelier will complete the operation in minutes at minimal cost.

Is an aftermarket 20mm strap truly compatible with my IW3248-01?

Yes, provided the lug width is genuinely 20mm. Any bespoke strap of quality craftsmanship made for this width fits your IWC's lug holes without modification. Compatibility depends exclusively on lug width, not on watch brand. We recommend verifying the lug width personally before purchase.

How long does a leather strap last on the IWC Pilot IW3248-01?

Leather strap lifespan varies according to build quality, frequency of use and environmental conditions. A high-quality artisanal strap in vegetable tanning lasts approximately 3–5 years of daily wear, developing a patina that enriches its character over time. Leather wears gradually; artisanal warranty covers construction defects and stitching for 18 months.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only