Strap for Lyre Quartz 38.5mm PVD Gold / White / Bracelet

The lug width of the Longines Lyre L4.859.2.12.8 is exactly 20 mm. This measurement is specific to several Longines mid-size models and does not conform to the more common 18 mm or 22 mm standards available in the market. To verify strap compatibility, always measure the external distance between the two holes where the spring bars insert.

The optimal strap depends on intended use and personal preference. For formal elegance, a Niloticus alligator in cognac brown or vegetable-tanned calf leather represent sophisticated solutions. For everyday versatility, black shell cordovan or natural calf offer durability and captivating ageing. Any chosen material must accommodate 20 mm lug width compatibility.

Changing the strap requires a spring bar tool (spring bar remover). Insert the tool into the small lateral groove of the spring bar, push to release one end, then extract completely. Repeat on the opposite side. Insert the new spring bar into the new strap, then position both ends into the case holes. The new strap's lug width must match the Lyre's 20 mm specification.

Yes, aftermarket straps in 20 mm that are of superior quality are fully compatible with the Lyre L4.859.2.12.8. Ensure they are constructed from fine materials (alligator, calf, shell cordovan) and that the lugs are measured with precision. Avoid inexpensive straps with inaccurate lug measurements, as they risk damaging the case lugs.

Longevity depends on material grade and usage patterns. Premium alligator or shell cordovan can endure 5–8 years with ordinary care. Vegetable-tanned calf, being more delicate, typically lasts 3–5 years. Intense sunlight exposure, prolonged moisture, and perspiration accelerate ageing. Casati Milano straps include 18-month warranty and may be regenerated or replaced.