Strap for Evidenza 33.1 Automatic Stainless Steel / Silver

The lug width of the Longines Evidenza L2.642.4.73.4 is 18 mm. This dimension is specific to the model and requires a strap with a precise internal width of 18 millimetres between the two sides. Any deviation results in excessive play or incorrect fit. It is essential to measure the original lug before ordering an aftermarket strap to ensure construction compatibility.

For the L2.642.4.73.4, four materials are recommended: alligator (dark brown or cognac) for classical elegance, shell cordovan (burgundy or natural) for tactile density and durability, vegetable-tanned calf (blue, olive green, brown) for chromatic versatility, and FKM rubber black for sports contexts. The choice depends on use: formal and afternoon wear for alligator, elegant everyday for shell cordovan, versatile for calf, and sports for rubber.

To change the strap, carefully extract the springbar using a dedicated tool—a thin lever instrument or a specialist kit. The springbar runs horizontally through the lug and connects the strap to the case. Remove the old strap by extracting the springbar, then align the new strap to the lug shoulders and reinsert the springbar with care. Ensure the springbar is fully secured on both sides before wearing the watch.

Any strap with an 18 mm lug width is compatible with the L2.642.4.73.4. On milanostraps.it you will find a collection of artisanal 18mm straps in premium leathers—alligator, shell cordovan, calf—with customisation of sizes, initials and stitching thread. The Casati Milano atelier also offers bespoke straps with direct consultation, WhatsApp updates and 18-month warranty.

The lifespan of a leather strap depends on material and daily wear. A high-quality artisanal alligator or shell cordovan strap lasts between 3 and 7 years with regular wear, with resistance increased by the natural density of the leather. A vegetable-tanned calf lasts 2–4 years before showing visible signs of wear. FKM rubber has similar lifespan, 3–5 years, but maintains structural integrity longer. Ageing is part of the aesthetics: a natural patina emerges over time, transforming the strap into a unique and deeply personal object.