Strap for La Grande Classique Quartz 24 Diamond Bezel

The lug width of the Longines La Grande Classique L4.241.0.85.2 is 13mm. This specific measurement is proportioned to the ultra-thin 24mm case and is one of the most important technical specifications for selecting a compatible strap. The measurement is taken from the inner base of the left lug to the inner base of the right lug.

For the L4.241.0.85.2, we recommend straps in superior quality alligator—with regular grain and natural patina developing over time—for a discreet luxury aesthetic. Leather with vegetable tanning is an ideal alternative, particularly in cognac or medium brown shades. For a sportier style, NATO in cotton or blended textile ensures practicality whilst maintaining elegance. Natural rubber is the choice for those prioritising longevity and versatility of use.

Strap replacement is accomplished by removing the spring bars (lug pins). Using a dedicated tool (spring bar remover), the pin is pushed inward, freeing the previous strap. The new 13mm strap is inserted by aligning the lateral holes with the pins, then pressed until the locking mechanism engages. It is advisable to entrust this operation to an expert to avoid scratching the case.

Yes, any strap with a 13mm lug width is compatible with the L4.241.0.85.2, provided the width is measured precisely. Custom artisanal straps from Milano Straps are cut to exact specifications to ensure perfect fit without lateral play. Total length can be adjusted according to the wearer's wrist circumference.

The lifespan of a leather strap depends on the quality of craftsmanship and usage intensity. Alligator or vegetable-tanned calf leather, crafted artisanally with double stitching and professional finishing, has an average life of 5–8 years with daily use. The patina developing over time is a sign of natural ageing, not deterioration. Natural rubber straps last 3–4 years. Casati Milano guarantees 18 months on manufacturing.