Strap for Modello Uno U1-FMN

The lug width of the Unimatic Modello Uno U1-FMN is 22mm. This measurement corresponds to the inner distance between the two case lugs and is standard for cases of 41.5mm diameter. To verify it, remove the current strap using a spring bar tool and measure the distance between the metallic lugs.

The ideal strap depends on intended use: genuine alligator offers maximum formal refinement with luminous scale texture; Italian vegetable-tanned leather guarantees rich patina and chromatic development over time; woven NATO straps provide tactical character and sporting versatility; FKM vulcanised rubber represents the purest functional choice. All are compatible with the 22mm lug width.

Use a spring bar tool to remove the spring bars that secure the current strap to the case lugs. Insert the blunt end of the tool into the hole beneath the lug, gently press to expand the internal spring and slide the bar out. Repeat on the opposite side. To install the new strap, reinsert the spring bars in the same manner.

Yes, any strap with a 22mm lug width is compatible with the Modello Uno U1-FMN. Milano Straps offers a specialised collection of 22mm straps in various materials and finishes: leather, alligator, shell cordovan, calf, woven NATO and rubber. All are designed to fit perfectly to the case lugs.

A quality leather strap, worn daily, typically lasts 3–5 years on a 41.5mm watch like the U1-FMN. Longevity depends on material (alligator and shell cordovan last longer than calf), tanning method (vegetable-tanned ages elegantly but wears faster than chrome-tanned), and frequency of use. With regular care and rotation with other straps, longevity increases significantly.