Strap for La Grande Classique Quartz 24 Diamond Bezel

The lug width of the Longines La Grande Classique L4.241.0.86.6 is precisely 13mm. This measurement, taken between the inner shoulders of the case, represents an intermediate size between ladies' and standard men's dress watches. A measurement of 13mm requires bespoke-constructed straps to ensure a fit without play or looseness.

The optimal choice depends on intended use. For formal elegance, we recommend deep brown or black alligator: the natural texture creates visual dialogue with the satin-brushed steel case. For daily versatility, fine-grained calf leather offers sophistication with practicality. For contemporary aesthetics, FKM rubber or linen NATO straps preserve the dress watch character whilst adding durability. Casati Milano's atelier can guide your selection based on skin tone and lifestyle requirements.

Strap change requires a spring bar tool. Position the watch on a flat surface, insert the tool's tip into the small lateral openings beneath the lug, gently press downward to release the internal spring, and withdraw the strap. For installation, align the new strap with the lug hole, reinsert the spring, and ensure it clicks securely. If you prefer to avoid risk, our replacement service at Casati Milano includes complimentary mechanism inspection.

Yes, provided it is certified for 13mm lug width. Milano Straps offers artisanal aftermarket straps in premium leather (alligator, calf, shell cordovan) ready for dispatch. All straps feature keeper loops in matching leather and case-specific tapered ends for precision fit. Always verify the strap is specifically constructed for 13mm: approximate measurements compromise both aesthetics and longevity.

A quality alligator or calf strap, worn daily, maintains excellent appearance for 2-3 years before showing patina development. Leather naturally develops a patina that increases aesthetic value. Shell cordovan, due to superior fibre density, typically lasts 4-5 years. Deterioration is not linear: the strap becomes less rigid, but structural integrity remains. Milano Straps provides 18-month warranty on all bespoke straps, with restoration and patination services available at our atelier.