Formex · Pilot

Strap for Pilot Quartz Chronograph PVD / Silver / Bracelet

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
Reference1100.4.3044.110
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 1100.4.3044.110

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pilot 1100.4.3044.110, seen from the bench

The Formex Pilot 1100.4.3044.110 is a contemporary evolution of the Swiss aviator tool watch, featuring a 46.50mm titanium and stainless steel case and a Ronda 5040.D quartz chronograph movement. Designed for professional pilots, it combines reliable functionality with lightweight construction, weighing approximately 110 grams on bracelet. The 22mm lug width accommodates medium to robust wrists and represents the optimal balance for this model's proportions, offering versatile strap compatibility without excess bulk.

Frequently asked questions

What is the lug width of the Formex Pilot 1100.4.3044.110?

The lug width of the Formex Pilot 1100.4.3044.110 is 22mm. This measurement represents the horizontal distance between the two lateral attachment pins on the case lugs where the strap is inserted. A 22mm lug width is the standard for modern pilot watches and ensures optimal visual proportions on a 46.50mm case diameter.

Which strap is best suited for the Formex Pilot 1100.4.3044.110?

For the Formex Pilot 1100.4.3044.110, we recommend three options. A technical NATO strap in slate-grey or aviation blue fabric is historically authentic and practical: it requires no deployante and remains secure even if one pin loosens. Vegetable-tanned calf leather in cognac brown or midnight blue offers sophistication and develops natural patina with use. FKM rubber in black or anthracite is the operational choice for long flights or humid environments, ensuring grip and easy maintenance.

How do you change the strap on a Formex Pilot 1100.4.3044.110?

To change the strap, you will need a spring bar tool (available in maintenance kits from Milano Straps). Place the watch on a soft pad, insert the spring bar tool into the lateral hole beneath one of the pins, press inward to release the pin from its seat, and remove the old strap. Repeat on the other side. Insert the new 22mm strap by aligning the holes with the lugs, press the pins into their seats until they click into place. Ensure the strap is centred before wearing the watch.

Is an aftermarket 22mm strap compatible with the Formex Pilot 1100.4.3044.110?

Yes, any strap with a lug width of 22mm is compatible with the Formex Pilot 1100.4.3044.110. Milano Straps offers handcrafted straps in leather, NATO, and rubber, all available in 22mm and ready for shipment. Compatibility is guaranteed by the standardisation of lug width: the case diameter does not affect strap mountability, only the visual proportion.

How long does a leather strap last on a Formex Pilot 1100.4.3044.110?

A quality vegetable-tanned calf leather strap typically lasts 3–5 years with daily use, provided it is protected from prolonged water exposure and extreme humidity fluctuations. Leather ages rather than deteriorates: it develops microscopic creases (patina) that add character. Longevity depends on the tanning method; vegetable-tanned leather is more durable than chromium-tanned hide. If worn with the Formex Pilot only for formal occasions, the strap may last 7–10 years. High-tenacity nylon NATO straps last 5–8 years; FKM rubber resists 4–6 years before becoming brittle in sunlight.

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