Unimatic · Modello Due

Strap for Modello Due U2-C

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

Lug width22 mm
Case diameter39 mm
ReferenceU2-C
FamilyModello Due
MovementTime Module caliber NH38 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

Straps for the Modello Due U2-C

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Modello Due U2-C, seen from the bench

The Unimatic Modello Due U2-C is powered by the NH38 caliber with indication of hours, minutes and seconds. The watch features 22mm lugs for the strap. The time module movement offers essential functions in a three-hand configuration.

Frequently asked questions

What is the lug width of the Unimatic Modello Due U2-C?

The lug width of the Unimatic U2-C is precisely 22mm measured from inner edge to inner edge. This dimension ensures universal compatibility with standard 22mm aftermarket straps from reputable artisanal manufacturers. To verify the correct measurement, position the watch on a flat surface with the caseback facing upward and measure the internal space between the lugs.

Which strap material pairs best with the Unimatic U2-C?

Vegetable-tanned leather represents the natural choice for the Modello Due. The authentic patina that develops over time complements the minimalist, instrumental aesthetic of the watch, adding character without compromise. Vegetable-tanned calf leather from Florentine tanneries develops warm hues after weeks of use. Alternatively, a non-aniline cotton NATO strap maintains authentic military identity, whilst natural vulcanised rubber is ideal for aquatic environments.

How do I change the strap on the Unimatic U2-C?

Strap replacement requires a dedicated tool (spring bar tool). Insert the tip gently under the spring bar retention mechanism from the opposite lug side, pressing downward until the end releases. Remove the old strap and insert the new one, ensuring the spring mechanism clicks into position. Verify that the strap is securely fastened before wearing the watch. For convenience, strap changes can be requested through an authorised service centre.

Are aftermarket 22mm straps compatible with the U2-C?

Yes, all 22mm lug width straps are compatible with the Modello Due U2-C. Milano Straps offers a dedicated collection of artisanal straps in vegetable-tanned leather, NATO, natural rubber, and other materials, all ready for dispatch and customisable online. Compatibility is guaranteed by the universal 22mm lug width standard for this watch category.

What is the average lifespan of a leather strap for the Unimatic U2-C?

A quality artisanal leather strap has an average lifespan of 2–5 years, depending on intensity of use, moisture exposure, and daily care. Vegetable-tanned leather typically outlasts aniline leather due to greater moisture resistance. To extend lifespan, avoid prolonged exposure to fresh water, allow complete air-drying after moisture contact, and periodically apply natural protective balm. A well-maintained strap develops authentic patina, improving over time rather than degrading.

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