Strap for Modello Due U2-BN

The Unimatic Modello Due U2-BN features a lug width of 22mm. This measurement represents the distance between the inner terminals of the case lugs and is essential for selecting compatible straps. You can verify it using a digital calliper positioned between the lugs: the reading should be precisely 22mm. This width is ideal for maintaining optimal proportions on a 38.5mm case, ensuring both strap robustness and visual elegance.

For the U2-BN, we recommend Tuscan leather with vegetable tanning and vintage patina (Testa di Moro), which amplifies the minimalist and tool watch aesthetic of the timepiece. Alligator with natural finish creates visual dialogue with the case's satinised surface, developing patina over time. If you prefer functional neutrality, a NATO in pearl grey or woven rubber strap maintains tool authenticity without distraction. Avoid polished finishes or ornaments: the U2-BN speaks through proportions, not decoration.

Strap change requires two essential tools: a spring bar remover (or dedicated needle) and a soft support base. Position the watch on the support with lugs facing upward. Locate the pin traversing the lug (typically removable); apply gentle but consistent pressure with the remover to extract the pin. Once extracted, the strap will loosen. Insert the new strap, aligning the holes, reposition the pin and press until you hear a locking click. Operate with caution to avoid scratching the case's satin finish.

All straps with 22mm lug width are compatible with the Unimatic Modello Due U2-BN, regardless of manufacturer. Milano Straps provides a specialised selection of 22mm straps in leather (alligator, calf, Tuscan), woven rubber, NATO and cordura. Ensure your strap has the correct inner lug width (22mm) and that holes align with your spring bar pins. Before purchase, verify the measurements stated in the strap's technical sheet.

Leather strap durability depends on factors such as frequency of use, environmental conditions (humidity, UV exposure) and maintenance. Tuscan leather with vegetable tanning, if used occasionally and subjected to periodic cleaning, maintains structural integrity for 3-5 years of moderate use. Constant exposure to perspiration, fresh water or UV rays accelerates fibre deterioration. Rubber straps last longer (5-7 years) as they resist moisture. We recommend rotating at least two straps for your U2-BN, alternating usage and thus guaranteeing superior longevity for each.