Strap for Modello Uno U1-SW1 Sincere Fine Watches

The lug width of the U1-SW1 is 22mm. This measurement represents the internal space between the two lugs of the case and determines compatibility with aftermarket straps. A 22mm strap will fit precisely within the lugs without excessive play or binding.

The choice depends on intended use. For formal elegance, an alligator strap with vegetable tanning in cognac colour enhances the case's sobriety. For dynamic daily wear, a premium NATO in grey or black preserves the instrument-watch identity. For those desiring conscious ageing, shell cordovan develops patina over time, transforming the watch into a unique object.

The operation requires a specific tool (spring bar tool) available in our kits. Insert the tool into the slot beneath the lug, press laterally to compress the elastic pin, and slide out the old strap. Repeat on the other side. Insert the new 22mm strap by aligning the lug with the opening, allowing the pin to snap back.

Yes, absolutely. The U1-SW1 features 22mm lugs, compatible with any strap of this size available on the market. Our handcrafted straps in leather, NATO and FKM rubber are tested on this case and offer precise fitting. We recommend always verifying that the strap is marked 22mm to guarantee total compatibility.

A strap in vegetable-tanned leather, subject to ordinary wear (5-7 days per week), maintains structural integrity for 3-4 years. The natural patina it develops makes the object more noble with time. Replacing the elastic spring bars is straightforward and allows the strap to be regenerated without losing its characteristic appearance.