Strap for Modello Due U2S-8BB All Black

The lug width of the Modello Due U2S-8BB is 22 millimetres. To verify compatibility of a strap, measure the internal distance between the two lugs of the case by positioning a ruler perpendicular to the case plane. This dimension is critical to ensure perfect strap fit and correct visual proportion between the 38.5 millimetre case diameter and the wrist.

It depends on use context and aesthetic preference. For a classic tool watch interpretation, we recommend vegetable-tanned Tuscan leather in burnt brown tonality, which develops a natural patina over time. Alternatively, a cordura NATO strap in grey-blue maintains the minimalist severity of the watch, while FKM rubber is ideal for very humid or sporting environments. For a more refined reading, alligator in semi-gloss balances the case's sobriety with the natural complexity of the scale texture.

Remove the watch from your wrist and place it on a soft surface with the caseback down. Using a spring bar tool or plastic lever, gently press inward one of the lugs from the opposite side relative to the passant, applying leverage to extract the fixing bar. Repeat the operation on the other lug. Insert the new strap by threading the bar into both lugs, starting from one side and pressing until engagement. Verify that the bar is fully inserted and that the strap does not move.

Yes, provided the strap is certified for 22 millimetre lug width. Our straps available in the 22mm section have been tested for mechanical and aesthetic compatibility with the Unimatic watch. Always verify that leather thickness does not exceed 1.8 millimetres, so the strap fits correctly into the lugs without excessive friction.

Longevity depends on tanning method and usage. A quality vegetable-tanned Tuscan leather, worn daily, maintains structural integrity for 3–5 years before fibres begin to weaken significantly. The natural patina that develops improves aesthetics during this period. Continuous water exposure shortens useful life, as do direct UV rays. Periodic maintenance with specific balms extends durability up to 40%.