IWC · Pilot

Strap for Pilot's Watch Mark XVIII Heritage

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
ReferenceIW3270-06 (aka: IW327006)
FamilyPilot
MovementIWC caliber 35111 hours, minutes, seconds | date
Year2017
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 Pilot IW3270-06 (aka: IW327006)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pilot IW3270-06 (aka: IW327006), seen from the bench

The IWC Pilot features the caliber 35111 with hour, minute, second and date functions. The model has 20mm lugs and belongs to the Swiss brand's aviator watch collection. The IW327006 reference identifies this specific configuration of the Pilot line.

Frequently asked questions

What is the exact lug width of the IWC Pilot IW3270-06?

The IWC Pilot IW3270-06 is fitted with a 20mm lug width. This measurement is standard for the model and determines compatibility with aftermarket straps. You can verify it by measuring the distance between the inner pins of the side lugs with a digital caliper.

What is the best strap material for this watch?

It depends on the intended use. For a classic look, natural alligator creates an aesthetic balance with the titanium case. If you seek everyday practicality, vegetable-tanned calf leather offers comfort and durability. For humid or nautical environments, FKM rubber is the smartest choice.

How do you change the strap on an IWC Pilot IW3270-06?

Strap changing requires no specialized tools. Use a spring bar tool to gently compress the elastic pins of the lugs, making them snap out of the watch's lugs. Insert the new strap by aligning the holes with the lugs, then release the pins. The operation takes just a few minutes and requires no special expertise.

Can I use an aftermarket 20mm strap on this model?

Yes, absolutely. Any strap with a 20mm lug width is compatible with the IWC3270-06. We recommend choosing thicknesses between 3.5mm and 4.5mm to maintain harmonious proportions. Custom-made straps from MilanoStraps are constructed specifically for this reference.

How long does a natural leather strap last on this watch?

A high-quality leather strap (alligator, cordovan, or vegetable-tanned calf) typically lasts between 18 and 36 months, depending on daily wear, ambient humidity, and care. The patina that develops over time is part of the character of natural leather, not a defect. MilanoStraps straps include an 18-month warranty.

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