Strap for Modello Uno U1-MY Mihara Yasuhiro

The Modello Uno U1-MY features a lug width of 22 mm, specifically engineered to maintain optimal proportions with the 41.5 mm case diameter. To measure correctly, use a digital calliper and measure the internal distance between the two lugs. All compatible straps must be manufactured to this precise width specification.

The choice depends on intended use: alligator or vegetable-tanned calf leather develops natural patina and ageing; nylon NATO maintains the original utilitarian spirit; FKM rubber is ideal for humid or sports environments. For the U1-MY, we recommend dark brown or black alligator for formal contexts, or grey NATO to reinforce minimalism and functionality.

The U1-MY uses straight pins (not spring bars): gently remove the old strap by extracting the pins with a spring bar tool, insert the pins into the new strap ensuring the slots align perfectly, then reinsert the pins into the case lugs. Verify the strap is centred and stable. If pins resist extraction, apply gentle lateral pressure to facilitate removal.

Yes, but only if manufactured specifically for a 22 mm lug width. Not all manufacturers produce this uncommon size. Milano Straps manufactures bespoke 22 mm straps using noble materials (alligator, calf, shell cordovan) and artisanal finishes. Always verify lug width before purchase to avoid incompatibility issues.

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 3–5 years with moderate daily use. Longevity depends on humidity, perspiration, sun exposure and maintenance. Shell cordovan lasts longer (5–8 years) because the material resists wear more effectively. Regular maintenance with leather-specific conditioner significantly extends lifespan.