Strap for La Grande Classique Tonneau 30 Stainless Steel

The Longines La Grande Classique L4.705.4.12.6 features an 18 mm lug width. This specification is fixed to the model and must be observed strictly when selecting any aftermarket strap. Even a minimal deviation prevents proper installation.

The choice depends on usage and context. For formal elegance, we recommend vegetable-tanned alligator in cognac or black. For refined daily wear, high-grade calf with visible ageing. For practicality without aesthetic compromise, a NATO in English cotton navy blue preserves the Grande Classique character perfectly.

The Longines L4.705.4.12.6 uses removable spring bars. For replacement, use a dedicated strap tool or consult a specialist watchmaker. Insert the tip into the lateral access hole, compress the spring slightly and slide the bar out. Reverse the procedure to fit the new strap.

Yes, provided they are manufactured specifically for 18 mm lug width. All straps in the milanostraps.it catalogue for 18mm are fully compatible with this Longines model. We offer complete customisation: lengths, initials and stitch finishes.

Durability varies by material and usage. Alligator and shell cordovan in vegetable tanning easily exceed 5-7 years of daily wear, with increasing patina. Calf leather typically lasts 3-5 years. Casati Milano straps carry an 18-month guarantee and are built to endure beyond the natural replacement cycle of the watch itself.