Strap for La Grande Classique Tonneau 30 Stainless Steel

The lug width of the Longines La Grande Classique L4.705.4.87.6 is 18 mm. This measurement is critical for purchasing a compatible strap and should be verified by positioning a calliper perpendicular to the watch case within the lug cavity.

The ideal strap depends on intended use: for formal elegance we recommend grey-blue alligator or black vitello with vegetable tanning; for daily practicality, a NATO in chromium leather or canvas; for colour narrative, maroon-honey shell cordovan. Casati Milano personalises every selection based on wrist anatomy and personal style.

Remove the watch from your wrist. Position it on a soft surface with the dial facing downward. Use a spring bar tool to depress the lug pin from one side, then extract the worn strap. Insert the new strap through the lug holes, ensuring the pin clicks securely. Avoid excessive force to prevent scratching the case.

Yes, absolutely. Any strap with an 18 mm lug width is compatible with the L4.705.4.87.6. We recommend straps of equivalent or superior build quality to the original Longines to preserve the watch's aesthetics and comfort. MilanoStraps offers a curated selection of artisanal 18 mm straps, certified and customisable.

A quality leather strap with vegetable or chromium tanning delivers durability of 3 to 7 years in daily wear, depending on ambient humidity and maintenance. Vegetable-tanned leather ages nobly, developing patina; chromium-tanned leather maintains greater rigidity over time. Casati Milano provides an 18-month warranty on all personalised straps.