Strap for Lyre 38.5 Automatic Stainless Steel / Silver / Bracelet

The lug width of the Longines Lyre L4.960.4.72.6 is 20 mm. This dimension is fixed for this reference and represents the precise distance between the internal shoulders of the case lugs. It is essential to verify this specification when purchasing an aftermarket strap to avoid lateral play or structural incompatibility.

Mississippi alligator is the ideal strap for this model: its linear grain and natural flexibility perfectly complement the classical proportions of the satin case. Alternatively, a calf leather strap with vegetable tanning offers more pronounced texture and superior durability, whilst shell cordovan guarantees exceptional longevity. For casual wear, a silk NATO or FKM rubber strap ensures practicality without aesthetic compromise.

Strap replacement is accomplished via the lugs (metal bars) that traverse the spring bars. Use a dedicated tool (spring bar tool) to gently compress the internal spring and extract it from the lug holes. Position the new strap by inserting the bars into the same holes, ensuring the retaining hook engages correctly. The procedure requires care to avoid scratching the case: it is advisable to use a soft cloth beneath the wrist during operation.

Yes, any strap with a 20 mm lug width is technically compatible. However, it is essential that the strap matches the case in quality: inferior materials (synthetic leather, industrial tanning, insufficient spring bars) compromise the elegance of the watch. Straps crafted by master artisans using noble leathers (alligator, shell cordovan, vegetable-tanned calf) preserve the aesthetic and constructive integrity of the Longines model.

Durability varies according to material and usage: superior alligator with French tanning guarantees 5–8 years of daily wear before replacement is required. Vegetable-tanned calf resists 4–6 years under normal conditions, whilst shell cordovan, being extraordinarily dense, can reach 10–15 years. Maintenance (minimal moisture exposure, annual treatment with dedicated creams, rotation between multiple straps) significantly extends longevity. Warranties offered by certified artisans cover construction defects for 18–24 months.