Strap for Lyre 40 Automatic PVD Gold / Champagne / Bracelet

The lug width of the Longines Lyre L4.961.2.32.7 is 21mm. This dimension represents the exact distance between the two lugs of the case where the strap is secured via spring bars. It is essential to verify this specification before purchasing an aftermarket strap to avoid misalignment or damage to the lugs.

The Lyre, with its rigorous geometry and minimalist profile, pairs ideally with alligator or vegetable-tanned calf leather straps. An alligator strap in grey or brown amplifies the formal aesthetic, while vegetable-tanned calf offers versatility and develops natural patina over time. Fabric NATO straps are discouraged, as they contradict the design integrity of the case.

To change the strap, you need to remove the spring bars using a dedicated spring bar tool. Position the tool in the small groove of the spring bar, apply gentle inward pressure, and simultaneously push the strap outward. Once the spring bar is extracted from the first side, repeat the operation on the other side. Then insert the new strap by aligning the holes with the case lugs and press gently until the spring bars click into position.

Yes, aftermarket straps can be used provided they have an exact lug width of 21mm. Many artisanal manufacturers offer high-quality leather straps compatible with this reference. It is advisable to choose certified quality straps to ensure durability, flawless aesthetics, and respect for the original watch design.

A quality leather strap for the Longines Lyre L4.961.2.32.7 has an average lifespan of 3-5 years with moderate daily use. Longevity depends on the leather type (alligator and shell cordovan last longer), usage frequency, humidity exposure, and maintenance. Straps made from vegetable-tanned leather develop a patina that visually extends their useful life. It is recommended to rotate multiple straps if usage is intensive.