Strap for La Grande Classique Tonneau 30 Yellow

The lug width is precisely 18 mm. This measurement represents the internal distance between the two lugs of the case. It is essential to verify this dimension before ordering an aftermarket strap to avoid misalignment or unsightly gaps between case and strap.

Alligator leather in vegetable tanning is the classic choice for this model: the regular grain harmonises perfectly with the compact proportions of the 29.70 mm case. Vegetable-tanned calf leather represents a versatile alternative, whilst shell cordovan offers superior durability. NATO straps, generally speaking, appear visually oversize on this feminine diameter.

The strap is changed using a small rod (spring bar tool) to remove the elastic pins from the case lugs. Position yourself at one of the lugs, insert the flat end of the tool into the hole, apply gentle pressure to compress the elastic pin and extract the strap. Repeat on the other lug. Installation follows the reverse process. If you lack experience, consult an authorised centre or Casati Milano atelier.

Yes, any strap manufactured for 18 mm lug width is compatible with the Longines L4.705.2.12.2. Always verify this dimension before purchase. MilanoStraps' bespoke straps are designed to respect the precise proportions of the case, guaranteeing an impeccable fit and maintaining the original aesthetics of the model.

The lifespan of a natural leather strap depends on the material, frequency of use and care. An alligator or vegetable-tanned calf, with ordinary maintenance (avoiding prolonged immersion and excessive sun exposure), typically lasts 3–5 years. Shell cordovan, due to its dense fibrous structure, may last longer. MilanoStraps offers an 18-month warranty on bespoke straps, covering manufacturing defects and anomalous deterioration.