Strap for Presence 25.5 Automatic Stainless Steel / Silver / Bracelet

The lug width of the Longines Presence L4.321.4.78.6 is 13mm. This measurement represents the distance between the centres of the two lugs and is critical for selecting a compatible strap. A digital calliper enables precise measurement, essential to avoid mechanical play or excessive tension on the case.

For this 25.50mm timepiece we recommend cognac-brown alligator or calf leather with vegetable tanning. Both materials respect the refined proportions of the case and create a harmonious visual interface. Alligator emphasises the discreet elegance of the design, whilst calf offers fine grain and natural ageing over time.

Use a strap changer or spring bar tool to extract the spring bar from both sides of the case. Never force: 13mm lugs are delicate and incorrect pressure can deform the metal. Position the new strap in the slots and reinsert the spring bar until you feel the mechanical click. The operation takes 2–3 minutes of attention.

Yes, any strap with 13mm lug width is mechanically compatible. Consult the technical specification sheet to verify the exact lug width of your model: milanostraps.it offers a complete range of artisanal 13mm solutions, customisable for length, finish and construction details.

Durability depends on material and use. Vegetable-tanned calf lasts 4–6 years in daily wear; shell cordovan exceeds 15 years; alligator sits at 8–12 years. Natural ageing is part of leather's beauty: patina, creases and tonal shifts tell the story of the strap and the wrist that wore it.