Strap for La Grande Classique Quartz 36 Stainless Steel / Black - Roman / Bracelet

The lug width of this timepiece is 20 mm. This measurement is critical: it represents the internal distance between the two lugs of the case. Any strap purchased must strictly comply with this specification, otherwise it will not fit into the case or will appear visually disproportionate. Always verify this dimension before purchase.

The ideal strap depends on the intended use context. For formal occasions, we recommend alligator in dark brown or black with vegetable tanning. For daily versatility, calf leather in medium grain in shades of brown, burgundy or black. If you wish to develop a personal patina over time, shell cordovan with vegetable tanning is the most noble choice. For sports-casual environments, a cotton NATO in grey or beige maintains the sobriety required by this timepiece.

The procedure is straightforward but requires careful attention. Position your watch on a soft surface (microfibre cloth). Locate the pins that secure the strap to the case — typically one on each side. Using a dedicated tool (spring bar tool), release the pin by pressing downward and outward. Remove the old strap and insert the new one, ensuring that the pin is fully engaged. If you do not have specialist tools, contact the Casati Milano atelier for professional strap replacement.

Yes, provided it respects the 20 mm lug width. A quality aftermarket strap (in alligator, cordovan, calf or FKM rubber) is fully compatible and often allows greater customisation compared to original Longines options. Milanostraps offers an extensive range of 20 mm straps specifically designed for models such as yours, with the possibility of customising measurements, initials and stitching thread.

Durability depends on the material, frequency of use and maintenance. A quality alligator or calf leather strap typically lasts 3-5 years of daily wear, although natural leather may age aesthetically even beyond that. Shell cordovan with vegetable tanning tends to last even longer, with progressive patina development. FKM rubber resists for 5 to 7 years. To extend the life of your strap, avoid prolonged moisture and regularly apply conservative treatments such as natural balms.