Strap for Elegant Collection 25.5 Automatic Stainless Steel / White / Strap

The Longines Elegant L4.309.4.12.2 features a lug width of 13mm, a specific measurement requiring specialised suppliers. This dimension is directly proportionate to the case diameter (25.50mm) and is essential for maintaining the design's elegant proportions. Measure the lug width using a digital calliper with the case inverted, or remove an installed strap and measure its total width.

For this model, we recommend alligator straps (regular grain, natural patina) or vegetable-tanned calf leather (soft texture, develops character). Both materials respect the case's minimalist aesthetic. Avoid metal link bracelets or large mesh designs: the reduced lug width would require complex engineering and conflict with the watch's sober design philosophy.

Strap replacement involves removing the spring bars that connect the strap to the case lugs. Use a spring bar remover tool (small lever) to gently disengage each bar from its seat. Insert the new strap, aligning the holes with the bar, and reposition the spring. If uncertain, consult a professional watchmaker: 13mm lugs require precision to avoid scratching the case.

Yes, MilanoStraps offers bespoke 13mm straps compatible with this model, crafted in alligator, calf, NATO, and rubber, customisable in length, initials, and stitching thread. The Casati Milano atelier also creates bespoke made-to-order straps with personal leather selection, WhatsApp updates, and an 18-month warranty, ensuring aesthetic coherence with the watch.

A quality leather strap (alligator or vegetable-tanned calf) typically lasts 3–5 years under daily wear, depending on exposure to moisture, heat, and mechanical stress. Natural leather develops a patina that evolves aesthetically over time. Periodic maintenance (gentle cleaning with cloth, quick drying after humidity) extends lifespan. Artisan-quality aftermarket straps guarantee 18–24 months of visual satisfaction before replacement becomes necessary for aesthetic rather than structural reasons.