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Unimatic · Modello Due

Strap for Modello Due U2-B

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

Lug width

22mm
22 mm strapsAll Unimatic
Lug width22 mm
Case diameter39 mm
ReferenceU2-B
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

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Straps for the Modello Due U2-B

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Modello Due U2-B, seen from the bench

The Unimatic Modello Due U2-B is a 38.5mm stainless steel watch featuring the Time Module NH38 automatic movement. With a 22mm lug width, this compact instrument combines Italian functional rationalism with European tool watch design principles. The watch delivers hours, minutes, and seconds without compromise on readability.

Frequently asked questions

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

The lug width of the Unimatic Modello Due U2-B is 22mm. This measurement is precise and allows no variation: the strap must be exactly 22mm wide to fit correctly onto the case lugs without lateral play.

Which strap is best suited for the Unimatic Modello Due U2-B?

The Modello Due U2-B pairs excellently with alligator straps featuring vegetable tanning, chromium-tanned calf leather, sustainable NATO fabric, or technical rubber. The choice depends on intended use: alligator for sartorial elegance, NATO for conscious sportiness, rubber for daily versatility. The minimalist stainless steel case adapts to any material palette.

How do I change the strap on the Modello Due U2-B?

To replace the strap, obtain a springbar tool. Position the tool at one end of the metal pin sustaining the strap, apply gentle pressure to release the pin, then repeat from the opposite side. Align the new 22mm strap with the lugs and reinsert the pins until they click into place. Perform this operation carefully, without forcing.

Which aftermarket strap is compatible with the Modello Due U2-B?

Any strap with a 22mm lug width is compatible with the U2-B. Milano Straps offers a dedicated collection of 22mm straps in leather, NATO, and rubber, verified for physical and aesthetic compatibility with the Modello Due's proportions. Always ensure the strap is exactly 22mm, not 20mm or 24mm.

How long does a leather strap last on the Modello Due U2-B?

A quality leather strap (alligator with vegetable tanning or chromium-tanned calf) lasts approximately 3-5 years with daily wear, evolving in colour and texture. Longevity depends on frequency of wear, humidity exposure, and tanning quality. Regular maintenance (gentle cleaning, protection of raw leather) significantly extends the strap'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