Strap for La Grande Classique Quartz 24 Stainless Steel / Grey - Diamond / Bracelet

The lug width of the Longines La Grande Classique L4.209.4.70.6 is 13mm. This measurement is specific to this 24mm model and results from proportional calculations to maintain the visual balance and discretion of the design. To verify the lug width, measure from the inner edge of one spring bar to the other, following a line parallel to the dial.

For this model, vegetable-tanned alligator represents the noblest choice, enhancing the sobriety of the design and creating a natural patina over time. Vegetable-tanned calf leather offers initial softness and evolving texture, whilst shell cordovan guarantees a deep and pronounced patina. For daily use, a fabric NATO or fluoroelastomer rubber strap maintains practicality without stylistic compromise.

To change the strap, use a spring bar tool. Position the watch with the dial facing downward, insert the tool tip into the small lateral grooves of the spring bar, press gently toward the center to release the pin, then extract it. Repeat on the other side. Insert the new strap by aligning the holes with the spring bars and press until the pins lock securely.

Any strap with a 13mm lug width is compatible with the L4.209.4.70.6. Milano Straps offers a comprehensive collection of 13mm straps in various materials: alligator, calf, shell cordovan, fabrics and rubber. All are designed to respect the minimalist proportions of this model and available with bespoke customisations.

Durability depends on the material and usage. A high-quality vegetable-tanned calf strap typically lasts 3–5 years with regular wear; alligator and shell cordovan can exceed 5–7 years thanks to greater fibre density. Periodic maintenance (gentle cleaning, annual conditioning) extends longevity. Milano Straps guarantees 18 months on straps made by Casati Milano.