Strap for La Grande Classique Quartz 24 Two Tone Yellow Roman

The lug width of the Longines La Grande Classique L4.209.2.31.7 is 13mm. This measurement represents the internal distance between the two lugs on the case and is a distinctive feature of this model. When selecting a strap, the terminals must have a width between 12.8mm and 13.2mm to ensure a precise fit without play.

For the L4.209.2.31.7, alligator leather with vegetable tanning is the ideal choice, thanks to its uniform grain and natural texture that complements the minimalist aesthetic of the dial. Alternatively, Italian calf leather from Tuscan tanneries offers a patina that evolves with daily wear. For summer versatility, a NATO strap in twill or vulcanised rubber maintains elegance whilst adding practicality.

Changing the strap on the L4.209.2.31.7 requires a specialised tool (spring bar tool) to remove the elastic pins that attach the strap to the lugs. The operation should be performed on a clean table with good lighting. If you are not experienced, entrust the task to a professional watchmaker or to Casati Milano's services, which offer strap changes and custom personalisation.

Any strap with a 13mm lug width is compatible with the L4.209.2.31.7. On milanostraps.it you will find a complete collection of 13mm straps in alligator, calf, shell cordovan and synthetic materials, customisable in size, initials and stitching colour. All straps are designed to accommodate standard spring bars and guarantee precise fit.

The lifespan of a leather strap depends on the material, tanning method and usage. High-quality alligator with vegetable tanning typically lasts 3 to 5 years of daily wear, developing a characteristic patina. Tuscan calf leather has similar durability. Straps crafted by Casati Milano benefit from an 18-month warranty and can be refurbished at the atelier to extend their lifespan.