Strap for Unimatic Modello Quattro UT4

The lug width of the Unimatic Modello Quattro UT4 is 22mm. This measurement refers to the distance between the two lugs where the strap attaches to the case. To verify, use a digital calliper and measure the space between the lugs at their narrowest point.

The best strap depends on your intended use. A premium NATO strap in Military Green maintains the field watch aesthetic perfectly. A vegetable-tanned calf leather in cognac tones creates elegant contrast with the brushed steel case. For maximum durability, a black FKM rubber strap offers uncompromising resistance to environmental conditions.

The UT4 features fixed spring bars on the lugs. To change the strap, remove the spring bars at both lug ends using a dedicated spring bar tool or a small flathead screwdriver. Insert the new strap by aligning its holes with the spring bar positions, then reinstall the bars. The operation takes approximately two minutes.

Yes, any strap with a 22mm lug width is fully compatible with the UT4. High-quality artisanal straps crafted from materials such as vegetable-tanned calf, shell cordovan, or technical textiles fit without issues. Always verify that the strap width is exactly 22mm before purchase.

Durability depends on material and usage. A vegetable-tanned calf strap subjected to moderate daily wear has a useful life of 3-5 years before replacement becomes necessary. Vegetable leather softens over time and develops a natural patina. If exposed to extreme conditions—constant rain, manual labour—lifespan may reduce to 1-2 years. An FKM rubber strap remains functional for at least 7-10 years.