Formex · Pilot

Strap for Pilot Quartz Chronograph PVD / Silver / Rubber

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter47 mm
Reference1100.4.3044.910
FamilyPilot
MovementRonda caliber 5040.D Hours, Minutes, Small Seconds | Date | Chronograph
CaseTitanium, Stainless 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 1100.4.3044.910

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pilot 1100.4.3044.910, seen from the bench

The Formex Pilot reference 1100.4.3044.910 features the Ronda 5040.D quartz caliber with hours, minutes, small seconds, date and chronograph functions. The watch has 22mm lugs for the strap. The movement offers chronograph indication in addition to the basic timekeeping functions.

Frequently asked questions

What is the lug width of the Formex Pilot 1100.4.3044.910?

The lug width of the Formex Pilot 1100.4.3044.910 is 22mm. This measurement, taken from the inner edge of one lug to the inner edge of the other in a direction perpendicular to the horizontal plane of the case, is the compatibility standard for all aftermarket straps available in the Milano Straps catalogue, ensuring perfect fitting without vertical play.

Which strap is best suited to the Formex Pilot 1100.4.3044.910?

The ideal strap depends on usage and case material. For titanium case: antracite black alligator for maximum austerity, or havana dark calf in vegetable tanning for tactile warmth. For stainless steel case: navy blue alligator with chromatic contrasts, or cognac calf that develops patina over time. For operational contexts: NATO nylon in oxford grey or FKM rubber for aquatic environments.

How do you change the strap on a watch with a 22mm lug width?

Remove the watch from your wrist and position it on a flat surface. Use a spring bar tool to gently lift the retention pin of the spring bar on one side of the case, then extract the strap. Repeat on the other side. Insert the new strap by aligning the hole with the spring bar, lower the pin until it clicks into place, and verify that both sides are firmly secured. Never force the fitting to avoid damage to the lugs.

Is an aftermarket Milano Straps strap 100% compatible with the Formex Pilot 1100.4.3044.910?

Yes. All straps in the 22mm collection available on Milano Straps are designed and tested for guaranteed compatibility with 22mm spring bars, the standard of the Formex Pilot 1100.4.3044.910. Manufacturing tolerance is certified for fitting without play and without contamination of the case edges.

How long does a leather strap last on the Formex Pilot 1100.4.3044.910?

Durability depends on material and usage: natural alligator lasts an average of 8-12 years with daily wear, resisting better to mechanical stress; calf in vegetable tanning lasts 4-7 years, with patina that evolves visually but requires regular maintenance (post-sweat drying, occasional conditioning). Both effects are amplified by the robustness of the 46.50mm case, which distributes weight uniformly across the strap.

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