Strap for La Grande Classique Automatic 36 Rose / White Roman

The lug width of the Longines La Grande Classique L4.908.1.91.2 is 20mm. This measurement represents the internal distance between the two lugs (pins) that anchor the strap. Precision is essential to avoid incompatibilities: an 18mm strap would be too tight and could damage the passant, while a 22mm strap would create undesirable gaps.

The best strap depends on your usage context. For formal elegance, we recommend toasted or cognac alligator with vegetable tanning: the fine grain and natural colour enhance the silvered dial and the 36mm diameter proportions. For legendary durability, shell cordovan remains unmatched. For daily wear, vegetable-tanned calf or a NATO strap in reinforced cotton with a satin-finished steel deployante.

To change the strap: 1) obtain a spring bar tool (or use a fine-bladed Swiss Army knife); 2) support the case with a soft cloth to prevent scratches; 3) position the tool under the spring bar and apply gradual upward pressure until detachment; 4) remove the worn strap; 5) align the new strap with the lug holes; 6) reinsert the spring bars in the opposite direction until you hear a click. If unsure, consult a professional watchmaker.

Yes, the L4.908.1.91.2 accepts aftermarket straps in any material, provided the width is exactly 20mm. MilanoStraps offers online a complete collection of 20mm straps in alligator, shell cordovan, vegetable-tanned calf, rubber and textile materials, with customisation options including length, initials and thread colour. Casati Milano atelier additionally offers bespoke solutions with direct selection of leather grades.

Lifespan depends on material and usage frequency. A quality artisanal alligator or shell cordovan lasts 5–10 years with daily wear, up to 15–20 years if rotated. Vegetable-tanned calf offers 3–5 years of ordinary life. Factors shortening lifespan: excessive perspiration, saltwater exposure, prolonged sun exposure. Recommended maintenance: apply protective cream every 3–4 months and rotate the strap regularly to allow the leather to rest.