Zenith · Pilot

Strap for Pilot Type 20 Ton Up Aged Steel / Black / Strap

Takes 23 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width23 mm
Case diameter45 mm
Reference11.2432.679/21.C900
FamilyPilot
MovementZenith caliber Elite 679 Hours, Minutes, Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Pilot 11.2432.679/21.C900, seen from the bench

The Zenith Pilot Type 20 Extra Special (11.2432.679/21.C900) is a 45mm stainless steel aviator watch with a black anti-reflective dial and contrasting white indices. It features the Zenith Elite 679 automatic movement operating at 36,000 vph with a 50-hour power reserve. The 23mm lug width accommodates robust straps for pilot glove operation, and the 13.65mm case thickness balances energy capacity with wearability under traditional aviator cuffs.

Frequently asked questions

What is the lug width of the Zenith Pilot 11.2432.679/21.C900?

The Zenith Pilot Type 20 Extra Special features a 23mm lug width. This dimension was engineered to accommodate robust and well-structured straps, consistent with the aviator-inspired construction philosophy of the model. Always verify the measurement before ordering an aftermarket strap to ensure perfect compatibility.

Which strap is most suitable for the Zenith Pilot 11.2432.679/21.C900?

For the Type 20 Extra Special we recommend genuine alligator with vegetable tanning or premium shell cordovan. Alligator highlights regular grain and develops natural patina over time; shell cordovan offers exceptional water resistance and durability. Both materials respect the aviator heritage and the robustness of the Elite 679 movement. Noble calf leather is the choice for those preferring sobriety.

How do you change the strap on the Zenith Pilot 11.2432.679/21.C900?

The process is straightforward: invert the watch, locate the lugs, use a spring bar tool to compress the internal spring and slide out the old strap. Insert the new 23mm strap ensuring the terminal aligns with the lug groove, allow the spring to resume its position, and verify alignment. Avoid excessive force on the case.

Is the Zenith Pilot 11.2432.679/21.C900 compatible with aftermarket straps?

Yes, the model accepts any strap with a 23mm lug width. Online you'll find hundreds of options, but to guarantee construction quality and longevity, we recommend specialists in 23mm lugs using internationally awarded leathers. Bespoke straps additionally offer choice of leather, stitch colour and deployante buckle.

How long does a leather strap last on the Zenith Pilot 11.2432.679/21.C900?

Durability depends on material: alligator and vegetable-tanned shell cordovan last 5-8 years of average use (3-4 days weekly). Premium calf may require reconditioning after 3-4 years. Key factors: humidity exposure, perspiration, torsional movements. Preventative care (occasional cleaning, drying) significantly extends strap life. Casati Milano offers professional reconditioning 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