Unimatic · Modello Uno

Strap for Modello Due U1S-HS2 Disney x Unimatic x Highsnobiety

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

Lug width22 mm
Case diameter38 mm
ReferenceU1S-HS2
FamilyModello Uno
MovementSellita caliber SW200-1 b hours, minutes, seconds
Year2023
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 U1S-HS2

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Modello Uno U1S-HS2, seen from the bench

The Unimatic Modello Uno U1S-HS2, a 38mm stainless steel tool watch from the Unimatic collection, features a Sellita SW200-1 b movement with 28,800 bph and 38-hour power reserve. The watch combines essential design with professional functionality, offering 300m water resistance through a screw-down crown. The 22mm lug width accommodates various strap options.

Frequently asked questions

What is the lug width of the Unimatic Modello Uno U1S-HS2?

The Unimatic Modello Uno U1S-HS2 features a 22-millimetre lug width. This measurement was deliberately chosen to balance the 38mm case diameter with correct visual proportions for the lugs. The 22mm specification allows you to use straps of any type without adapters, offering maximum stylistic versatility.

Which strap is most suitable for the Unimatic U1S-HS2?

The ideal strap depends on your intended use. For everyday elegance, an alligator or vegetable-tanned calf leather in dark brown perfectly complements the tool-watch character of the timepiece. For humid or sporty conditions, a premium vulcanized rubber strap ensures grip and durability. For versatility, a NATO in regenerated fibres combines contemporary aesthetics with certified sustainability.

How do I change the strap on the Unimatic Modello Uno U1S-HS2?

Strap changes are made using a spring bar tool with a rounded tip to remove the spring bars from the lugs. Position the tool underneath the spring bar, apply gentle pressure, and slide the spring bar along the lug channel until it withdraws completely. Repeat on the opposite side. To install the new strap, align the spring bar with the channel and slide until you feel the click-locking engagement.

Can I use an aftermarket strap on this watch?

Yes, without hesitation. The 22mm lug width of the U1S-HS2 is a well-distributed standard among artisanal strap manufacturers. Verify that your aftermarket strap is specifically dimensioned for 22mm and that the attachments are compatible with the standard spring bar mechanism. Straps crafted from vegetable-tanned leather or vulcanized rubber guarantee longevity and aesthetics coherent with the minimalist spirit of the Modello Uno.

How long does a leather strap last on a watch like the U1S-HS2?

Durability depends on construction quality and usage patterns. An alligator or vegetable-tanned calf strap with superior thickness (above 2.5mm), handcrafted construction, typically lasts 4–7 years under moderate daily wear. Constant water exposure accelerates ageing; alternating between multiple straps significantly extends lifespan. Leather develops fascinating patinas over time, making this evolution an integral part of your timepiece's history.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only