Strap for Les Ravissantes de Longines

The lug width is 9mm, a rare dimension reflecting the minuscule case proportions (18mm diameter). This specificity requires bespoke-made straps, unavailable in the standard market. To verify, measure with callipers the distance between the two metal lugs protruding from the case, parallel to the dial.

For formal wear, black alligator in fine grain is the historically correct choice, imparting discreet elegance and zero visual movement. For daily use, vegetable-tanned calf develops an extraordinary patina over time. For versatility, a navy canvas NATO maintains formal character without compromising practicality.

Strap changes occur via the case lugs (the 9mm metal hinges). Use a flattened tool (spring bar tool) to compress the internal spring, freeing the old strap. Insert the new lugs into the front slot and allow the spring to snap into position. Work deliberately to avoid scratching the case.

Yes, provided it is made with 9mm lugs. The vast majority of commercially available straps feature 20mm or 22mm lugs, so choosing a bespoke or specialised strap for this measurement is mandatory. MilanoStraps offers 9mm straps customisable in leather, colour and stitching.

A high-quality vegetable-tanned leather strap lasts 3–5 years with daily wear, developing an extraordinary patina in the process. Longevity depends on climate, frequency of wear and care. A quality alligator, less exposed to flexing, can last 5–8 years. Casati Milano's warranty covers 18 months of protection against manufacturing defects.