Formex · Pilot

Strap for Pilot Quartz Chronograph PVD / Black - White / Calf

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
Reference1100.4.3014.213
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 1100.4.3014.213

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Pilot 1100.4.3014.213, seen from the bench

The Formex Pilot 1100.4.3014.213 is a contemporary evolution of Swiss instrumental aviation timepieces. The 46.50mm case combines titanium and stainless steel for lightweight durability suitable for extended flights and extreme operations. It features a Ronda caliber 5040.D quartz movement with chronograph, minute totalizer, small seconds, and date functions, offering ±15 seconds/month accuracy and 24-month battery life. The 22mm lug width accommodates standard aftermarket straps while maintaining visual balance for medium-sized wrists.

Frequently asked questions

What is the lug width of the Formex Pilot 1100.4.3014.213?

The Formex Pilot 1100.4.3014.213 features a 22mm lug width, which is the internal distance between the two spring bar pins that secure the strap to the case. Any aftermarket strap with a 22mm attachment point and standard straight spring bars is compatible with this model.

Which strap is best suited for the Formex Pilot 1100.4.3014.213?

The choice depends on intended use and personal preference. For formal or business contexts, vegetable-tanned alligator with an elegant patina is ideal. For versatile pairing, calf leather with pronounced grain offers comfort and durability. For operational environments, sweating, or humidity, a cotton-polyester NATO or FKM rubber ensures superior grip and minimal maintenance. The titanium case pairs well with neutral tones, whilst stainless steel accepts a broader colour palette.

How do you change the strap on the Formex Pilot 1100.4.3014.213?

The Formex Pilot 1100.4.3014.213 is fitted with standard straight spring bars (non-proprietary). To change the strap: 1) obtain a dedicated spring bar removal tool; 2) position the watch with the lug facing downward; 3) gently press the spring mechanism inward to release the pin; 4) extract the pin and old strap; 5) align the new strap's pins with the case slots; 6) push until you hear a click. The process takes 2-3 minutes per lug.

Which aftermarket straps are compatible with the Formex Pilot 1100.4.3014.213?

Any strap with a 22mm lug width and standard straight spring bars is compatible. Milano Straps' catalogue includes alligator, calf, shell cordovan, NATO, and rubber straps—all available in 22mm width. Always verify compatibility by measuring the internal width between the two case lugs. Milano Straps curates materials and finishes suited to instrument-grade watches of this calibre.

How long does a leather strap last on the Formex Pilot 1100.4.3014.213?

Durability depends on material, frequency of use, and care. Vegetable-tanned alligator, with regular maintenance (gentle cleaning and annual conditioning), lasts 5-8 years. English calf ranges from 4-6 years. Vulcanised rubber, if cleaned regularly and stored away from direct sunlight, retains elasticity for 3-4 years. The greatest damage comes from unwiped acidic sweat, heat sources, and excessive flexing. Rotating between multiple straps significantly extends each one's lifespan.

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