IWC · Pilot

Strap for Pilot's Watch Chronograph Stainless Steel / Patrouille Suisse

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

21mm

21 mm straps All IWC

Lug width21 mm

Case diameter42 mm

ReferenceIW3717-14 (aka: IW371714)

FamilyPilot

MovementIWC caliber 79320 hours, minutes, small seconds | date, day | Chronograph

Year2011 - 2012

CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

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Straps for the Pilot IW3717-14 (aka: IW371714)

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Pilot IW3717-14 (aka: IW371714), seen from the bench

The IWC Pilot IW3717-14 is a stainless steel chronograph with a 42mm case and IWC caliber 79320 automatic movement. The black dial features Mercedes hands and minute indices with cartographic clarity, housed in 316L stainless steel with a sapphire caseback. The 21mm lug width positions this pilot watch between vintage and contemporary proportions, designed for wrists of 17–19cm circumference and requiring compatible aftermarket straps.

Frequently asked questions

What is the lug width of the IWC Pilot IW3717-14?

The IWC Pilot IW3717-14 features a 21-millimetre lug width. This specification is essential for purchasing a compatible strap and should be measured precisely using a calliper between the lug attachment points on the case.

Which strap is most suitable for the IWC Pilot IW3717-14?

For the IW3717-14, we recommend vintage brown cognac alligator for aesthetic contrast, Italian vegetable-tanned calf for evolved patina, or shell cordovan for extreme durability. Selection depends on intended use and wearing context.

How do I change the strap on an IWC Pilot IW3717-14?

Use a spring bar tool to gently extract the spring-loaded pins securing the strap to the case lugs. Insert the new strap by threading the pins through their respective openings until they click into place. Avoid excessive force that could scratch the case.

Are there aftermarket straps compatible with the IW3717-14?

Yes, numerous artisanal strap manufacturers produce 21-millimetre width straps compatible with the IW3717-14. Milanostraps.it offers a specialised collection with customisation options in leather, stitching, initials, and buckle materials.

How long does a leather strap last on an IWC Pilot IW3717-14?

A quality artisanal leather strap (alligator, vegetable-tanned calf, or shell cordovan) typically lasts 3-7 years with daily use, developing patina and settling within the first 6 months. Shell cordovan straps can achieve 10-15 years of service life due to the inherent density of equine leather.

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