Strap for Constellation Co-Axial 31 Stainless Steel / Red Gold / Snow / Blue Supernova

The lug width is 20 millimetres. This value corresponds to the distance between the lugs that connect the case to the bracelet. Precise measurement is crucial: even half a millimetre difference would render the strap incompatible or potentially damaging to the lugs.

Alligator represents the traditional aesthetic choice, thanks to its regular texture that contrasts elegantly with rose gold and develops a noble patina over time. Vegetable-tanned calf offers daily versatility, while shell cordovan creates sophisticated visual symmetry with the precious metal. Rubber is inadvisable: it would diminish the dress character of this model.

The procedure requires a spring bar tool (a small instrument with a bifurcated tip). Insert the tool into the lateral holes of the case, positioned beneath the lugs, and apply gentle pressure to release the spring mechanisms. Once the lugs are freed, the old strap slides away and the new one clips into the lugs with a perceptible click. A simple operation but one that requires care to avoid scratching the case.

Yes, provided the strap is specifically manufactured with 20mm lug width and that the pin diameters are compatible. Artisanal straps from Milano Straps, crafted to precise construction specifications, guarantee immediate compatibility. We always recommend verifying the dimensions of the buckle or <a href="/pages/termine-glossario/deployante">deployante</a> to ensure the strap matches the case correctly.

A quality alligator or calf strap can last 3 to 5 years with regular maintenance, depending on the intensity of use and climate. Exposure to sweat, water and humidity accelerates wear. An 18-month warranty is standard for artisanal straps, but longevity also depends on how the piece is stored when not worn: in a dry environment and away from direct light. Casati Milano straps include a quality certificate and restoration option.