Strap for Modello Uno U1S-MP

The Unimatic Modello Uno U1S-MP features a lug width of 22 millimetres. This standard measurement provides access to a wide selection of compatible artisanal straps. To verify the lug width of your watch, position a ruler or digital calliper from the inner edge of the left lug to the corresponding edge of the right lug, excluding the spring bar pins themselves.

For the U1S-MP, we recommend an alligator strap with fine grain in dark brown or black, which emphasises the tool watch character without ostentation. Alternatively, vegetable-tanned calf leather offers a natural patina that evolves over time, or a sturdy canvas NATO strap for sporty, robust applications. The choice should respect the rigorous, minimalist aesthetic of the timepiece.

To change the strap, you will need a spring bar tool or similar implement. Position the watch on a stable surface, locate the small hole at the base of the lug, insert the tool to compress the internal pin, then slide the old strap out of the lugs. Repeat on the opposite side. Finally, insert the lugs of the new strap into the watch lugs, ensuring the pins click into position with a distinctive snap.

Yes, all straps with a lug width of 22 millimetres are compatible with the U1S-MP, provided the lug width is correct. Unimatic's proprietary geometry requires rigorous constructive precision; ensure you order a quality artisanal strap that respects the exact 22-millimetre specification. Milano Straps' products are crafted with meticulous attention to constructive detail and guarantee a perfect fit.

A quality leather strap, crafted with vegetable tanning and artisanal construction, typically lasts 3–5 years with moderate daily wear. Longevity depends on frequency of use, climatic conditions and strap care. Robust calf or alligator age elegantly over time, developing a unique patina. To extend durability, avoid prolonged water exposure, remove the strap at night and occasionally apply a balsam designed for natural leathers.