Strap for Elegant Collection Automatic 29 Stainless Steel / Silver / Strap

The lug width of the Longines Elegant L4.310.4.77.2 is 16mm. This specific dimension determines compatibility with all 16mm strap options from milanostraps.it's artisanal collection. To verify your watch's exact lug width, use a digital calliper positioned across the lugs on the case, measuring the distance between the centres of the springbar holes.

The ideal strap depends on your intended use. For maximum formal elegance, we recommend vegetable-tanned alligator (dark brown or black) or shell cordovan, which develops a natural patina over time. For daily versatility, a smooth calf leather in neutral tones (black, brown, grey) offers the best balance between aesthetics and practicality. For absolute versatility, a NATO strap in heavy-duty fabric suits any occasion.

Strap change is straightforward: use a spring bar tool to compress the internal springs of the springbar pins (the axes connecting the strap to the case). Once the pins are extracted from the old strap, insert them into the slots of your new 16mm strap, ensuring they are fully seated in both case lugs. If you are unfamiliar with this procedure, the Casati Milano atelier is available for this service by appointment.

Yes, any artisanal strap with a 16mm lug width is fully compatible with the L4.310.4.77.2. Quality aftermarket straps do not damage your watch and offer the opportunity to personalise your timepiece with premium materials such as alligator, shell cordovan, and vegetable-tanned calf—often superior to the original strap in craftsmanship and longevity.

Durability depends on the material and daily use. A standard calf leather strap lasts 3–4 years with daily wear; shell cordovan can exceed 7–10 years owing to fibre density. Vegetable-tanned alligator, thanks to its robust structure, typically lasts 5–6 years of intensive use. All milanostraps.it straps include an 18-month warranty, and the Casati Milano atelier offers maintenance services and buckle replacement with extended warranty coverage.