Strap for Modello Due U2-AB

The lug width of the Unimatic Modello Due U2-AB is 22mm. This dimension represents the external width between the lugs of the case and is the fundamental parameter for strap compatibility. To verify with precision, position a calliper or millimetre ruler between the external extremities of the lugs: you should read exactly 22mm.

The strap most coherent with the aesthetic philosophy of the U2-AB is leather with vegetable tanning, particularly in earth brown or burgundy tones. Vegetable-tanned leather develops a natural patina over time, creating a constant visual dialogue with the brushed stainless steel case. Alternatively, a NATO strap in neutral tones (grey, beige, navy blue) emphasises the tool vocation of the watch while preserving the minimalism of the design.

Strap replacement requires the use of a specific tool: a spring bar tool. Position the tapered end of the tool in the small hole present beneath the lug of the case, apply gentle pressure to compress the internal spring, and the strap will disengage. Proceed with caution to avoid scratching the case. If you do not possess the tool, consult a watchmaker for strap replacement service.

Yes, all straps with a 22mm lug width are compatible with the U2-AB. Premium artisanal straps offered by Milano Straps guarantee precise proportions and high-quality materials. Before purchase, verify that the strap specifies the 22mm width and that the terminals are shaped for diver watches (with keeper loop and deployant, if leather).

A vegetable-tanned leather strap, subjected to regular maintenance (cleaning with a damp cloth every 2-3 weeks, treatment with mink oil once every 6-8 months), has an estimated lifespan of 3-5 years of constant wear. Longevity depends on ambient humidity, frequency of water contact, and intensity of use. The patina that develops over time is a positive aesthetic element and does not compromise the structure of the leather.