IWC · Pilot

Strap for Pilot's Watch Spitfire Mark XVI Stainless Steel / Silver / Bracelet

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm

20 mm straps All IWC

Lug width20 mm

Case diameter39 mm

ReferenceIW3255-05 (aka: 3255-05, IW325505)

FamilyPilot

MovementIWC caliber 30110 Hours, Minutes, Seconds | Date

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 IW3255-05 (aka: 3255-05, IW325505)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Pilot IW3255-05 (aka: 3255-05, IW325505), seen from the bench

The IWC Pilot IW3255-05 is a 39mm stainless steel watch embodying aviation instrument design principles established since the 1930s. It features a black satin dial, oversized crown for gloved operation, and a 10.5mm case thickness for structural robustness. The watch houses the internal IWC 30110 manual-wind movement with hours, minutes, seconds and date window at 3 o'clock. Water resistance is 60 metres and the sapphire crystal provides scratch resistance. The 20mm lug width requires precise strap selection to maintain optical proportions with the case diameter.

Frequently asked questions

What is the lug width of the IWC Pilot IW3255-05?

The lug width of the IWC Pilot IW3255-05 is 20mm. This dimension is measured as the distance between the case's lateral pins. Use a digital calliper or consult a qualified watchmaker to verify with precision.

What is the best strap for this IWC Pilot model?

The best strap depends on your intended usage. For formal environments, we recommend alligator in medium-dark brown or black calf leather with vegetable tanning. For sporty aviator styling, a dark grey NATO strap remains coherent with the model's heritage.

How do I change the strap on the IW3255-05?

To change the strap, remove the two lateral spring bars that secure it to the case. Use a dedicated spring bar tool to compress the pin and extract it from its seat. Insert the new 20mm strap by aligning the lugs and reinserting the bars until you hear a click.

Are aftermarket straps compatible with the Pilot IW3255-05?

Yes, provided they feature a 20mm lug width. Compatible straps come in leather (alligator, calf, cordovan), fabric (NATO, Cordura) or rubber. Always verify the model and width specification before purchasing.

How long does a leather strap last on the Pilot IW3255-05?

A quality leather strap, if made with vegetable tanning and French stitching, typically lasts 18–24 months with daily wear. Longevity depends on climate, frequency of use and your maintenance habits. Casati Milano straps include an 18-month warranty and refinishing 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