Strap for Modello Uno U1-MOMA-G / MoMA Yellow

The lug width of the Modello Uno U1-MOMA-Y is 22 millimetres. This measurement is defined as the linear distance between the two mounting holes on the watch's lugs and represents the standard of compatibility for all 22mm aftermarket straps. To verify the measurement, use a digital caliper positioned perpendicularly to the outer edges of the spring bar housings.

An alligator strap with natural tanning and tight grain is the most congruent match with the watch's minimalist aesthetic. Alligator leather respects the rigorous design philosophy whilst maintaining a uniform surface and a patina that evolves authentically over time. Alternatively, vegetable-tanned calf or a cordura NATO strap preserve the industrial integrity of the watch, depending on the intended context of use.

Extract the spring bars using a dedicated spring bar tool, which allows you to compress and release the bar from the outer shoulder of the lug. Position the tool's tip in the bar's housing, gently push towards the watch's centre to release tension, then withdraw the bar. Repeat on the opposite lug. Install the new strap by reversing the procedure, ensuring the bars are fully seated in their housings.

Yes, any aftermarket strap with a certified 22mm lug width is compatible with this watch, irrespective of the strap manufacturer. The critical factor is verifying that the lug width measures exactly 22mm and that the attachment thickness aligns with the watch's lug holes. Many quality artisanal manufacturers (such as MilanoStraps) produce 22mm straps specifically designed for this category of timepieces.

A leather strap's durability depends on material quality, tanning method, and daily usage patterns. An artisanal alligator or vegetable-tanned calf strap maintains structural integrity and flexibility for 5–7 years of regular wear; the patina evolves naturally, enhancing visual character. Exposure to excessive humidity, direct heat, and repetitive flexing accelerates ageing. Periodic conditioning with specialist balms significantly extends the strap's functional lifespan.