Strap for Master Collection Date 38.5 Stainless Steel Diamond

The lug width of the Longines Master Collection L2.628.4.77.6 is 20 mm. This measurement represents the distance between the two lugs on the case where the strap is attached. It is essential to verify this dimension before ordering a compatible strap to ensure a perfect fit.

For the Master Collection L2.628.4.77.6 we recommend a strap in medium brown alligator or calf leather with vegetable tanning. Alligator offers enduring elegance and structured grain; vegetable-tanned calf develops personal patina over time. Both materials complement the orologio's classical identity without compromising aesthetic authority.

To change the strap you need a spring bar tool. Position the watch on a stable surface, insert the tool's tip into the small lateral slot of the lug to compress the internal spring, and gently extract the spring bar. Repeat on the other side. Insert the new strap by first fitting one spring bar, then compressing it to insert the second end. A straightforward operation requiring only care.

Yes, any strap with a 20 mm lug width is compatible with the L2.628.4.77.6. The artisanal straps from milanostraps.it are manufactured to international quality standards and mount on this model without any issues. Always verify that the strap specifies a 20 mm lug width.

The lifespan of a leather strap depends on material and usage. Artisanal alligator with vegetable tanning lasts 4–6 years under daily wear; shell cordovan can exceed 7–8 years due to natural robustness. Exposure to moisture, sweat and heat accelerates ageing. Casati Milano guarantees 18 months on custom straps and offers restoration and reconditioning services.