Strap for Lyre 40 Automatic Stainless Steel / Blue

The lug width of the Longines Lyre L4.961.4.92.2 is exactly 21 mm. This measurement is taken from the inner edge of one integrated lug to the inner edge of the other. A compatible strap must have a passant (the section that slides through the lug) of 21 mm ±0.5 mm tolerance. Any deviation would result in difficulty threading the strap or an unbalanced aesthetic on the case.

For the Longines Lyre, we recommend dark brown alligator, which complements the classical design of the 40 mm brushed steel case. Alligator develops a natural patina over time and creates a refined aesthetic contrast. Alternatively, navy blue calf leather offers daily versatility, whilst shell cordovan represents the choice for those seeking a long-term investment with a caramel patina developing over time.

The Longines Lyre features integrated lugs, not spring bars. To change the strap, gently grip the old strap and push its passant through the case lug, typically using a flat tool (strap lever or cloth). Once the passant is extracted, insert the new strap in the same direction, ensuring it slides smoothly. We recommend a test slide before wearing, to avoid scratching the case.

Yes, absolutely. Quality aftermarket straps (in alligator, calf or shell cordovan) offer customisation, colour and material choices that Longines does not provide in their catalogue. The important thing is to verify that the passant width is exactly 21 mm. On milanostraps.it you will find certified straps for this lug width, handcrafted and customisable.

Lifespan depends on intensity of use, material and care. A quality alligator or calf, worn daily, maintains functionality for 3-5 years before showing significant signs of wear. Shell cordovan, being more resistant, can reach 7-10 years. Moisture, perspiration and sun exposure accelerate ageing. Proper maintenance (periodic cleaning, storage in dry environments) significantly extends strap life.