Strap for Lyre 25 Automatic Stainless Steel

The lug width of the Longines Lyre L4.260.4.11.6 is 13 millimetres. This measurement, taken from inner wall to inner wall of the lug, is a fixed specification that determines compatibility with aftermarket straps. Any strap should be verified before installation to ensure a proper fit without excessive play.

For the Lyre L4.260.4.11.6 we recommend straps in natural alligator with vegetable tanning, preferably in cognac or burgundy hues, as they harmonise with the brushed steel case and maintain the discrete elegance of the original design. Alternatively, vegetable-tanned calf leather offers tactile softness and natural patina development. Both catalogue straps and bespoke creations are available through the Casati Milano atelier.

To change the strap, gently remove the lug pins using a dedicated spring bar tool. Insert the small flat hook into the visible slot on the pin, apply controlled pressure to release the internal spring, and retract the pin from the case lugs. Repeat on the opposite lug. Insert the new pins into the new strap, orient them towards the inside of the case, and snap each end into the lug housings, verifying that they are fully locked.

Yes. The L4.260.4.11.6 is compatible with aftermarket straps with 13mm lug width. Milano Straps offers a selection of 13mm straps ready for shipment, crafted in alligator, calf and other natural materials. All products can be personalised in length, embroidered initials and choice of stitching thread. Always verify that the strap is expressly designated for 13mm lugs before purchase.

A natural leather strap with vegetable tanning, if subjected to regular maintenance, has an operational lifespan of 3–5 years with daily wear. Longevity depends on factors such as exposure to perspiration, moisture, frequency of use, and the quality of the leather itself. Alligator straps tend to preserve better over time due to the density of the grain. Milano Straps and the Casati Milano atelier offer 18-month guarantees on bespoke straps and skin regeneration services.