Strap for Modello Due U2S-8N Capri

The lug width of the Unimatic Modello Due UWK-U2S-8N is 22mm. This measurement is determined by the case geometry and represents the distance between the lateral pins that accommodate the strap. To verify compatibility, measure with a digital calliper the internal distance between the attachments, perpendicular to the lug axis.

For the Unimatic Modello Due UWK-U2S-8N, we recommend alligator in vegetable tanning (dark brown or slate grey) for functional elegance, full-grain calf leather (cognac or charcoal) for contemporary simplicity, or cotton NATO for daily practicality. The choice depends on intended use and personal aesthetic preferences. We recommend trying samples at the Casati Milano atelier for an informed decision.

To change the strap on the Unimatic Modello Due UWK-U2S-8N, you need a thin, flat spring bar tool. Lift the strap gently, locate the elastic pin in the lug seat, push the tool inward to release the pin, then extract the strap vertically. The new strap is inserted in reverse, ensuring the pin clicks correctly into both lug holes. This operation requires care to avoid scratching the case.

Yes, any strap with 22mm lug width is compatible with the Unimatic Modello Due UWK-U2S-8N. MilanoStraps offers a curated selection of artisanal leather, NATO, and rubber straps specifically measured at 22mm. Before purchase, verify that the strap has standard spring bars and that the overall strap width is proportionate to the 38mm case.

The lifespan of an artisanal alligator or calf leather strap depends on usage intensity and environmental conditions. Under moderate use (3–5 days weekly), a quality artisanal leather strap lasts 3–5 years before requiring replacement. Prolonged exposure to sun, humidity, and perspiration reduces durability. A vegetable-tanned strap develops a natural patina that improves over time, conferring character and uniqueness. Periodic maintenance with specific creams significantly extends the strap's useful life.