Strap for La Grande Classique Automatic 36 White Roman / Bracelet

The Longines La Grande Classique L4.908.4.11.6 features a lug width of exactly 20 millimetres. This measurement is specific to the model and represents the equilibrium between the 36mm case diameter and actual wrist proportions. To verify your watch's correct measurement, measure the distance between the inner centres of the spring bars using a calibrated ruler.

For the L4.908.4.11.6, we recommend straps in black or dark brown alligator for a formal interpretation coherent with the white dial aesthetic. Alternatively, vegetable-tanned calf leather delivers genuine warmth and develops a noble patina over time. For versatility, a grey or black rubber strap maintains the model's discrete sporting soul. Avoid highly textured straps that would compete visually with the dial's purity.

Changing the strap on the L4.908.4.11.6 requires a spring bar removal tool. Gently remove the current strap by unscrewing the spring bars from both sides, then slide your new 20mm-width strap through the lugs. Reposition the springs with precision to avoid case damage. If you lack experience, consult a specialist to prevent scratching.

Yes, provided the straps have a verified 20mm lug width and are constructed from quality materials. Artisanal straps from specialised ateliers, such as those from Milano Straps, guarantee precise compatibility and structural longevity. Avoid generic low-quality straps, which may damage your watch's lugs due to imprecise construction tolerances.

Leather strap durability depends on tanning method and usage patterns. An alligator or shell cordovan strap can last 5–8 years with regular maintenance and rotation between multiple straps. Vegetable-tanned leather tends to show wear sooner but develops a richer patina over time. Constant water and perspiration exposure reduces longevity. We recommend rotating between two or three straps regularly to extend their useful life.