Unimatic · Modello Uno

Strap for Modello Uno U1-F

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-F
FamilyModello Uno
MovementTime Module caliber NH38 hours, minutes, seconds
Year2019
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-F

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Modello Uno U1-F, seen from the bench

The Modello Uno U1-F represents Unimatic's minimalist approach to contemporary watchmaking. It is equipped with the automatic Time Module caliber NH38 with indication of hours, minutes and seconds. It features 22mm lugs for the strap.

Frequently asked questions

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

The Unimatic U1-F features a lug width of 22mm. This specification is essential for selecting compatible straps without resorting to adapters. The measurement is taken from the inner surface of one lug to the other, perpendicular to the case.

What is the best strap for the Unimatic Modello Uno U1-F?

There is no single best choice, but rather informed selections. Vegetable-tanned Tuscan leather is ideal for those appreciating natural ageing and patina development. Alligator leather offers a distinct texture and superior durability. Shell cordovan provides natural lustre. NATO fabric straps represent functional purity. Rubber is the solution for humid environments or sports use.

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

The Unimatic U1-F features straight 22mm lugs with removable spring bars via a standard extraction tool. Remove the springs from their lateral housings, extract the lug, and install the new strap by reversing the procedure. A straightforward operation requiring only minutes and no specialised tools.

Can I use an aftermarket strap compatible with the Modello Uno U1-F?

Absolutely. Any strap with a 22mm lug width is compatible with the U1-F. Milanostraps offers a curated selection of artisanal 22mm straps in leather, NATO and rubber, crafted with attention to construction details and noble materials.

How long does a leather strap last on the Unimatic Modello Uno U1-F?

Lifespan depends on the material, frequency of use and environmental conditions. A vegetable-tanned leather strap of artisanal quality resists 3 to 5 years of daily wear, then develops rich character patina. Alligator and shell cordovan offer greater longevity. Regular maintenance (cleaning, occasional conditioning) significantly extends useful life.

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