Unimatic · Modello Uno

Strap for Modello Uno U1-SS2 Spongbob Squarepants

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

Lug width22 mm
Case diameter42 mm
ReferenceU1-SS3
FamilyModello Uno
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 Uno U1-SS3

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Modello Uno U1-SS3, seen from the bench

The Unimatic Modello Uno U1-SS3 is equipped with the NH38 caliber offering hours, minutes and seconds functions. The watch features 22mm lugs for the strap. The Time Module movement ensures the essential hourly indications.

Frequently asked questions

What is the lug width of the Unimatic Modello Uno U1-SS3?

The lug width of the Unimatic Modello Uno U1-SS3 is 22mm. This width offers a wide selection of artisanal straps, from full-grain leather to vulcanised rubber, including NATO fabrics and alligator models.

Which strap should I pair with the Unimatic Modello Uno U1-SS3?

The Modello Uno U1-SS3 pairs perfectly with natural leather straps featuring vegetable tanning, which emphasises the minimalist character of the case. Alternatively, technical NATO straps in pure cotton or sports rubber elevate a more contemporary aesthetic. For those seeking sartorial elegance, alligator models with fine grain texture guarantee total aesthetic compatibility.

How do I change the strap on the Unimatic Modello Uno U1-SS3?

Strap replacement is performed using the spring bars located at both ends of the case. Use a dedicated tool, such as a spring bar remover or small lever, to gently lift the spring bar terminals, remove the previous strap and insert the new one, ensuring that both bars click correctly into their seats. This operation takes just a few minutes and requires no special technical skills.

Which aftermarket straps are compatible with the Unimatic Modello Uno U1-SS3?

All straps manufactured with 22mm lug width are compatible with the U1-SS3. At milanostraps.it, an exclusive collection of 22mm artisanal straps in leather, technical NATO, rubber and elastomers is available, customisable online. Each product is tested to guarantee mechanical compatibility and aesthetic coherence with the minimalist style of the Modello Uno.

What is the lifespan of a leather strap for the Unimatic Modello Uno U1-SS3?

A leather strap with vegetable tanning, if subjected to ordinary maintenance (periodic cleaning with a damp cloth, annual conditioning with natural oils), guarantees a lifespan of 4-6 years of daily use. The patina that develops on the leather over time is part of the material's aesthetic beauty and testifies to the authenticity of the garment. Factors such as humidity, temperature and frequency of use significantly influence strap longevity.

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