Strap for Saint-Imier Date 38.5

The lug width of the Longines Saint Imier L2.766.4.72.0 is 20 mm. This measurement refers to the internal distance between the two lugs of the case and determines compatibility with aftermarket straps. To verify it correctly, measure the distance between the inner shoulder of one lug to the other: the value must be exactly 20 mm.

The best strap depends on intended use and desired aesthetic register. For formal occasions, we recommend dark brown alligator or shell cordovan with satin-finished steel hardware. For daily versatility and business casual, a vegetable-tanned calf leather in brown or black tones offers balance between elegance and practicality. A grey NATO in cotton or Cordura fabric ensures maximum versatility and a semi-sporty aesthetic coherent with the timepiece's classical proportions.

Changing the strap requires extraction of the spring bars that connect the strap to the lugs. Using a dedicated tool (spring bar tool), gently push the pin downward and, maintaining pressure, slide off the old strap. Insert the new strap ensuring the spring bars click firmly into the lug terminals. Verify that the strap is snug and correctly positioned before wearing the watch.

Yes, absolutely. Any strap with a 20 mm lug width is compatible with the Longines Saint Imier L2.766.4.72.0. Artisanal aftermarket straps offer freedom of choice in materials (alligator, shell cordovan, calf leather, fabric) and finishes, allowing you to personalise the timepiece according to your personal style and usage requirements.

The lifespan of a natural leather strap depends on usage, leather quality, and maintenance. A high-quality alligator or shell cordovan strap lasts 3–5 years of daily wear, developing a patina over time that increases its character. Lower-quality calf leather has a lifespan of 1–2 years. Regular maintenance (drying after moisture exposure, avoiding prolonged sun exposure) significantly extends the strap's useful life.