Strap for La Grande Classique Tonneau 22 Yellow

The lug width of the Longines La Grande Classique L4.205.2.87.7 is precisely 18mm. This measurement determines strap compatibility: the strap must fit perfectly between the two lugs of the case without lateral play. To verify the measurement, position a calliper or ruler between the lugs—the inner distance is the lug width. Do not confuse this measurement with the case diameter (22.20mm), which is a different value.

For this dress watch, we recommend a strap in alligator or vegetable-tanned calf leather. Alligator represents the most elegant choice thanks to its regular, marked grain that enhances the case's minimalism: a black or dark brown skin amplifies the contrast with stainless steel. Vegetable-tanned calf offers a soft texture that ages magnificently, developing patina over time. For versatility, fine-grained calf in bordeaux or medium brown tones allows natural chromatic transitions.

The L4.205.2.87.7 strap is fitted via spring bars (small elastic bars that sit under the lugs). Obtain a spring bar tool (available online): insert the flat tip under the lug, press gently to free the spring, remove the bar. Slide out the old strap. Insert the new strap (18mm width), reposition the spring bar whilst pressing until it clicks into place. Verify it is securely fastened before wearing the watch. Proceed carefully to avoid scratching the case.

Yes, any strap with an 18mm lug width is compatible with the L4.205.2.87.7, regardless of brand. Compatibility depends solely on the lug width, not the watch brand. Online you will find high-quality straps in various materials (alligator, calf, shell cordovan, fabrics) all in 18mm size. Choose based on your style and colour preferences. Always verify the lug width before purchase to avoid errors.

The lifespan of a leather strap depends on the material, frequency of use, and maintenance. A quality alligator or shell cordovan strap, with moderate daily use and without prolonged moisture exposure, lasts 3–5 years before showing obvious signs of wear. Vegetable-tanned calf has a similar lifespan but develops a patina that enhances its character. To extend strap life, avoid wetting the leather, do not expose it directly to sunlight for extended periods, and use a dry cloth to remove moisture. The standard warranty is 18 months.