Strap for Elegant Collection 25.5 Automatic Stainless Steel / Grey / Bracelet

The lug width of the Longines Elegant L4.309.4.72.6 is 13 mm, a non-standard dimension specifically designed for the proportions of the 25.5 mm case. This measurement ensures the strap remains visually balanced relative to the case, avoiding aesthetic imbalance. To verify compatibility, measure the internal distance between the two lugs with a digital caliper: it must be exactly 13 mm.

Alligator leather in vegetable tanning represents the most elegant choice, thanks to its characteristic grain and patina development over time. Alternatively, continental calf offers a smooth, understated texture, whilst shell cordovan adds luminous sophistication. For a contemporary approach, satin-finish rubber maintains the aesthetic lightness of this piece. NATO straps, despite their popularity, tend to visually overwhelm this compact case.

To change the strap, position the watch with the lugs facing downward on a soft surface. Use a dedicated spring bar tool to gently push the spring bar inward, freeing it from one side. Remove the bar completely, then detach the existing strap. Insert the bar into the new strap, aligning it precisely, then reinsert the bar into the lugs listening for the reassuring click of engagement. Proceed with care: the lugs of such an elegant timepiece merit respect.

Yes, the Longines Elegant L4.309.4.72.6 is fully compatible with quality aftermarket straps, provided they feature the same 13 mm lug width. At milanostraps.it you will find a curated selection of artisanal straps for this measurement, crafted in premium leather, alligator, shell cordovan and rubber, customisable to your preferences. Casati Milano atelier also offers bespoke production with personalised colour and finish consultation.

The lifespan of a leather strap varies depending on material and usage patterns. A vegetable-tanned alligator strap of quality, with proper maintenance (drying after moisture exposure, protection from direct sunlight), typically lasts 5–8 years. Continental calf, more delicate, ranges from 3–6 years. Shell cordovan, extraordinarily robust, easily surpasses 10 years. Casati Milano's 18-month warranty covers manufacturing defects; the remaining ageing represents the natural patina that characterises premium leather.