Strap for Modello Uno U1S-ET Exquisite Timepieces

The Unimatic Modello Uno U1S-ET features a lug width of 22mm. This dimension is determined by the geometry of the lugs welded to the case and must be strictly observed when selecting a strap. It allows no tolerance: a 20mm strap would be too tight, whilst a 24mm strap cannot be fitted.

The optimal strap choice depends on intended use. For a minimalist classical character, we recommend vegetable-tanned leather (alligator or calf) with natural patina development; for daily versatility, a premium NATO in sustainable material; for maximum durability, pressed rubber with contemporary texture. The brushed stainless steel case dialogues elegantly with any of these options when chosen consciously.

The strap is changed using a simple spring bar removal tool. Gently press the spring bar from one side until it partially emerges, then extract the old strap from the lugs. To fit the new strap, align the spring bars with the holes and push gently until the locking click is felt. This is a fully reversible operation without risk to the case.

Yes, any 22mm strap is entirely compatible. Compatibility is based solely on lug width (22mm), not brand affiliation. However, to ensure aesthetic coherence with the watch, we recommend straps manufactured from materials and finishes that respect Unimatic's minimalist standard: quality leather, essential finishes, absence of decorative excess.

A high-quality leather strap with vegetable tanning maintains structural integrity for 3–5 years of daily wear, developing a compelling aesthetic patina. Longevity depends upon frequency of wear, perspiration, climate and care practices. A NATO strap shows similar durability but undergoes less pronounced aesthetic transformation. Pressed rubber resists for 4–6 years before superficial wear signs appear.