Strap for Modello Quattro UT4-B

The lug width of the UT4-B is 22mm, measured between the two lateral case lugs. This dimension is standard on both the caseback and dial sides, ensuring complete compatibility with any aftermarket strap manufactured to this specific width specification.

For the UT4-B we recommend Italian leather using vegetable tanning (calf or alligator) in natural or tobacco tones. This choice emphasises the minimalist aesthetic of the watch. Alternatively, a technical NATO in navy blue or dark grey maintains the tool watch spirit. A stainless steel deployant buckle, coordinated with the case finishing, completes the pairing with understated elegance.

To change the strap, remove the two lateral lugs using a strap removal tool or dedicated punch. Position the watch with the dial facing downward, insert the tool into the lug hole from the opposite side and push gently until it emerges. Repeat for the second lug. Install the new strap by aligning the holes with the lugs and reinserting them until full seating is achieved.

Any strap with a 22mm lug width is compatible with the UT4-B. We recommend selecting high-quality artisanal straps: alligator with vegetable tanning, vegetable-tanned calf, shell cordovan for superior ageing, or technical straps in NATO and vulcanised rubber. Always ensure the strap features standard removable 22mm lugs.

A high-quality leather strap (calf or alligator with vegetable tanning) on a UT4-B has an average lifespan of 3–5 years with regular daily use, depending on factors such as sun exposure, humidity and maintenance frequency. Vegetable-tanned leather tends to patina rather than deteriorate, developing character over time. Periodic maintenance with natural balms significantly extends longevity.