Strap for Lyre 25 Quartz Yellow

The lug width of the Longines Lyre L4.259.2.12.7 is 13mm. This measurement is specific to the 25mm case model and is critical when sourcing compatible aftermarket straps. Measuring the lug width accurately with a digital calliper is essential to avoid purchasing incompatible straps, as most standard commercial options do not cover this specialised dimension.

Alligator leather in black or dark brown represents the most aesthetically coherent choice, aligned with the Lyre's minimalist identity. Alternatively, shell cordovan develops elegant character over time, ageing gracefully alongside the timepiece. Vegetable-tanned calf leather offers a balanced solution between formality and everyday wearability.

To change the strap, use a spring bar tool or a simple steel lever. Position the watch on a soft surface to prevent case scratching. Gently push the spring bar from the opposite side to extract it from the lug, then slide the strap out of both lugs. Reverse the procedure when installing the new strap, ensuring the spring bar is fully seated and secure in both lugs.

Yes, provided the strap is specifically constructed for a 13mm lug width. Many commercial straps are available only in standard sizes (16, 18, 20mm), making specialist artisanal suppliers essential. Milano Straps offers bespoke straps specifically engineered for this measurement with careful material and finish selection.

The lifespan of a leather strap depends on the material chosen and usage intensity. An alligator or calf strap, properly maintained, typically lasts 3-5 years with regular wear. Shell cordovan, due to its structural density, can last 7-10 years or longer with appropriate care. Wear at the inner edges is natural and adds character; replacement becomes necessary when the strap deteriorates structurally or when the buckle begins to wear excessively.