IWC · Pilot

Strap for Pilot's Watch Mark XV Stainless Steel / Black / Strap

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

19mm
Lug width19 mm
Case diameter38 mm
ReferenceIW3253-01 (aka: 3253-01, IW325301)
FamilyPilot
MovementIWC caliber 37524 hours, minutes, seconds, world time | date
Year1999 - 2005
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 IW3253-01 (aka: 3253-01, IW325301)

Selected for the 19 mm lug width

All 19 mm straps →

The Pilot IW3253-01 (aka: 3253-01, IW325301), seen from the bench

The IWC Pilot IW3253-01 features the Caliber 37524 with functions of hours, minutes, seconds, world time, and date. The watch has 19mm lugs and belongs to the Swiss brand's Pilot collection. The movement offers GMT indications for monitoring multiple time zones.

Frequently asked questions

What is the exact lug width of the IWC Pilot IW3253-01?

The lug width of the IWC Pilot IW3253-01 is 19 millimeters. This measurement represents the vertical space between the two lugs of the case and determines compatibility with any aftermarket strap. It is essential to measure it precisely using a digital caliper, positioning it between the inner edges of the lugs, to avoid straps that are either too loose or too tight on the mounting.

Which strap is recommended for the IW3253-01?

For the Pilot IW3253-01, a vegetable-tanned alligator strap (chocolate brown or black) is recommended for formal-daily wear, as it enhances the neutral appearance of the brushed steel case. For sports or water use, an FKM rubber strap guarantees maximum resistance to salt water and impacts. A cotton NATO or light-colored cordovan represent versatile summer alternatives. The choice depends on the intended wearing context.

How do you change the strap on the IWC Pilot IW3253-01?

Changing the strap on a watch with straight lugs like the IW3253-01 requires: (1) positioning the watch on a stable surface; (2) locating the spring bars (small spring pins) that connect the strap to the lugs; (3) using a spring bar tool (dedicated lever) to push the spring bar inward, creating space to slide the strap out of the lug; (4) repeating for the second side; (5) inserting the new strap by pushing the spring bar until it clicks into position. The total time is approximately 10-15 seconds for experienced users.

Is there a certified aftermarket strap compatible with the IW3253-01?

Yes. Milanostraps.it offers handcrafted straps in 19mm size customizable in leather (alligator, calf, shell cordovan), rubber, and textiles, all compatible and assemblable with standard IWC spring bars. Casati Milano also creates bespoke made-to-order straps with direct leather selection and personalized finishes (initials, thread color), completed by 18-month warranty and technical support.

How long does a leather strap last on the Pilot IW3253-01?

The lifespan of a leather strap depends on the material and usage. An alligator or calf leather in vegetable tanning, with daily wear and routine maintenance (periodic cleaning, drying after water contact), guarantees 3-5 years of aesthetic wearability before showing visible signs of fatigue. Vegetable tanning develops a natural patina that improves appearance over the years. An FKM rubber strap lasts 5-7 years if protected from prolonged direct sun exposure. Casati Milano offers an 18-month warranty and repair and restoration services.

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