Strap for Modello Uno U1-FM

The lug width of the Unimatic Modello Uno U1-FM is 22 millimetres. This dimension is critical to maintain correct proportions between the 41.50mm case and the strap. When selecting a strap, ensure it is specifically sized for 22mm to avoid gaps between the lug and strap.

Vegetable-tanned leather is the ideal choice: natural Tuscan leather ages beautifully, developing a rich patina that complements the Modello Uno's constructivist philosophy. Alternatively, a robust NATO strap or formal alligator maintains aesthetic coherence. Avoid saturated colours or prominent synthetic materials that would contradict the brutalist language of the watch.

The strap is secured with spring bars positioned on either side of the case. To remove the current strap, use a dedicated tool to compress the spring bar on one side, allowing it to slide out of the hole. Align the new 22mm strap with the lugs and release the spring bar, ensuring it clicks fully into place. If inexperienced, entrust the task to a professional watchmaker to avoid scratching the case.

Yes, provided the strap is specifically sized for 22mm lug width. Milano Straps offers a selection of artisanal compatible straps in various materials: vegetable-tanned leather, NATO, rubber. Artisanal quality ensures construction reliability that respects the technical solidity of the original watch.

Longevity depends on usage and material quality. A vegetable-tanned leather strap, worn daily, typically lasts 2–4 years before replacement, during which it develops desirable patina. Factors such as perspiration, humidity, and frequency of use accelerate ageing. Regular maintenance (gentle cleaning and conditioning) significantly extends strap lifespan.