Strap for Modello Tre U3-8N Capri

The lug width of the Modello Tre is 22mm, measured internally between the case lugs. It is important not to confuse this dimension with the external width: to verify strap compatibility, you should always measure the internal space between the two lugs.

For this timepiece we recommend straps in vegetable-tanned calf leather with a thickness between 1.4 and 1.6mm: the refined material aligns perfectly with the minimalist philosophy of the case. Alternatively, NATO straps in heavyweight cotton emphasise the chronographic nature, whilst FKM rubber represents the most functional choice.

Changing the strap requires a precision spring bar tool. Position the watch on a soft surface, insert the tool into the small hole beneath the lug and push inward to release the spring. Once the pin is extracted, slide the previous strap and insert the new one, ensuring the spring snaps correctly into its seats.

Yes, numerous artisans produce 22mm straps compatible with the Modello Tre. On Milano Straps you will find a specialised collection for this lug size: each piece is crafted with attention to the constructive details and proportions specific to this chronograph.

A vegetable-tanned calf strap, if properly maintained, typically lasts 4-6 years of daily use. Longevity depends on exposure to moisture, sunlight and the degree of mechanical stress. The patina that develops over time does not compromise structural integrity; rather, it adds character and uniqueness to the piece.