Strap for Modello Uno U1-EN

The lug width of the Unimatic Modello Uno U1-EN is 22mm. This measurement represents the distance between the lugs of the case and determines compatibility with straps. By measuring the internal space between the case lugs, a strap with a width of 22mm will fit precisely without any play.

For the Modello Uno U1-EN, a strap in vegetable-tanned Tuscan leather is the most coherent choice with the tool watch's aesthetic identity. Vegetable-tanned leather develops a natural patina that mirrors the satined finish of the stainless steel case. Alternatively, a NATO strap in Cordura fabric offers practicality without stylistic compromise, maintaining the minimalist character of the timepiece.

Strap replacement is accomplished by removing the spring bars that connect the strap to the case lugs. Use a dedicated spring bar tool to apply gentle inward pressure and extract the pin. Once removed, insert the new 22mm strap, ensuring that the spring bars click correctly into their seats. Verify that the strap is securely fastened before wearing.

Yes, you can use any 22mm lug width strap that complies with standard construction specifications. Artisanal straps in vegetable-tanned leather, alligator, calf, or NATO fabric are compatible with the U1-EN as long as the width is exactly 22mm. We recommend verifying that the strap thickness does not prevent proper passage through the case lugs.

The lifespan of a leather strap depends on usage and material quality. A premium vegetable-tanned Tuscan leather strap, subjected to daily wear, typically lasts 3-5 years before the leather shows significant signs of wear. The patina that develops naturally is desirable, though the buckle and stress points may eventually require maintenance. With proper care and rotation between straps, longevity increases considerably.