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IWC · Pilot

Strap for IWC Pilot IW3718-07

The Pilot's Watch Double Chronograph Le Petit Prince takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

17mm
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Lug width17 mm
Case diameter44 mm
ReferenceIW3718-07 (aka: 3718-07, IW371807)
FamilyPilot
MovementIWC caliber 79420 Hours, Minutes, Small seconds | Date, Day | Chronograph, Rattrapante
Year2015 - 2016
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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What I'm asked about the IWC Pilot IW3718-07

What strap size does the IWC Pilot IW3718-07 take?

The IWC Pilot IW3718-07 needs 17 mm between the lugs. It's the size I've been fitting on it for years.

Can the strap on the IWC Pilot IW3718-07 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the IWC Pilot IW3718-07?

Yes, in 17 mm leather. On a 44 mm chronograph I like box calf: it holds its shape and carries a substantial case.

Which strap do you recommend for the IWC Pilot IW3718-07?

A 17 mm box calf. I don't keep this size ready in the catalogue: I make it to measure. If you'd rather have something built on your wrist, the Casati atelier.

The Pilot IW3718-07, seen from the bench

The Pilot IW3718-07 mounts the IWC caliber 79420 with a split-seconds chronograph function and day and date indication. The movement offers hours, minutes, small seconds and a chronograph with overlaid double-second hands. The reference belongs to the IWC Pilot collection dedicated to aviation instruments.

Frequently asked questions

What is the best strap for the IWC Pilot IW3718-07 (aka: 3718-07, IW371807)?

The choice depends on intended use and desired aesthetics. Structured alligator delivers formal elegance and is the most versatile. Italian calf ages beautifully and transforms the chronograph's military character into an object that develops patina over time. Textile NATO remains faithful to the original aeronautical context and offers maximum practicality. FKM rubber is ideal for humid environments and intensive use.

Is there an aftermarket strap compatible with the IW3718-07 (aka: 3718-07, IW371807)?

Yes, all straps with 17mm lugs are compatible. At milanostraps.it you will find a selection of handcrafted straps made in alligator, Italian calf, NATO and rubber, customizable in lengths, initials and stitching thread. The Casati Milano atelier also offers bespoke solutions with personal consultation.

How long does a leather strap last on the IWC Pilot IW3718-07 (aka: 3718-07, IW371807)?

A quality leather strap (alligator or Italian calf) typically lasts 5-7 years with regular use, developing patina and character over time. Durability depends on intensity of use, sun exposure and skin contact. Handcrafted straps from milanostraps.it include 18-month warranty and can be regenerated or replaced. FKM rubber has superior durability (8-10 years) due to greater resistance to environmental factors.

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

Bespoke straps for IWC, in the atelier or by video call: casatimilano.com