Strap for DolceVita 20.5 Quartz Stainless Steel / Diamond / MOP

The lug width of the Longines DolceVita L5.255.0.87.5 is 15mm. This measurement is specific to this model and non-standard in the broader watchstrap market. It is essential to verify this dimension before purchasing an aftermarket strap, as not all suppliers offer this size. The measurement is taken from the internal space between the two lugs of the case, where the strap is anchored.

For the DolceVita L5.255.0.87.5, the ideal strap is natural alligator leather (vegetable-tanned), which imparts formal elegance and develops an extraordinary patina over time. Secondarily, vegetable-tanned calf leather offers greater versatility and durability whilst maintaining a sartorial character. For a more casual aesthetic, a NATO or textured rubber strap remains an elegant choice. Your selection should reflect the intended context: formal events favour alligator, whilst daily wear favours calf leather or rubber.

The DolceVita strap is changed using a dedicated spring bar tool, which allows you to compress the small metal springs (spring bars) located at the ends of the strap. Gently insert the tool into the space between the lug and the spring, compress the spring towards the centre of the case, and the strap will release easily. To install the new strap, repeat the process in reverse. If you lack experience, we recommend having the operation performed by a qualified watchmaker or the Casati Milano atelier.

Yes, you may use an aftermarket strap provided it matches the 15mm lug width specification. Milano Straps offers a comprehensive catalogue of 15mm artisanal straps, customisable in leather type, colour, length, and stitching thread. Compatibility is ensured by matching the lug width; however, we recommend selecting high-quality straps (vegetable-tanned leather, alligator, technical rubber) that honour the dress watch profile of your timepiece. A mediocre strap compromises the overall appeal of a Longines watch.

The lifespan of a leather strap depends upon daily wear, moisture exposure, and material selection. High-quality vegetable-tanned alligator lasts 4–7 years with moderate use; durable calf leather lasts 3–5 years; synthetic or rubber straps last 5–10 years. Patina (natural ageing of leather) is desirable in quality leather, as it imparts character. The Casati Milano atelier offers an 18-month warranty on all bespoke straps, with replacement or repair options available in case of manufacturing defects.