Strap for Prestige Gold Cushion 18

The lug width (distance between the lugs) of the Longines L4.230.7.32.6 is 20mm. This measurement is critical for ensuring compatibility with third-party straps and is determined by the distance between the case lugs. It can be measured directly by observing the space between the strap bars.

For a yellow gold case of 18mm, alligator leather represents the ultimate choice, owing to its regular grain pattern and natural patina that amplifies the perceived value of the metal. Notable alternatives include vegetable-tanned calf leather (softer with intensive patina development), shell cordovan (exceptionally dense and durable material), and calf with rubber inserts for more contemporary configurations.

The strap is removed by extracting the spring bars that anchor it to the case lugs. Using a dedicated spring bar tool or consulting an expert, gently extract the bars from one side, liberating the old strap. The new 20mm lug-width strap is installed by sliding the spring bars through the lug slots, ensuring they are fully seated in the original position.

Yes, completely compatible. The 20mm lug width is a widely-serviced standard among premium strap manufacturers. This ensures access to an extensive range of materials including alligator, shell cordovan, vegetable-tanned calf, and natural vulcanised rubber, without compromising construction quality relative to genuine Longines straps.

Lifespan varies according to material and intensity of use. A standard-quality calf strap lasts 3-4 years under daily wear conditions. Shell cordovan, owing to superior material density, can reach 5-7 years. Alligator positions itself in the 4-5 year range. To extend longevity, alternate usage patterns and avoid prolonged direct moisture exposure.