Strap for Presence 34.5 Automatic Yellow

The lug width of the Longines Presence L4.821.2.18.2 is 18 mm. This is an unconventional size, requiring straps specifically designed for 18 mm lugs. To verify compatibility, measure the distance in millimetres between the lugs (the pins protruding from the case): it must correspond exactly to the 18 mm indicated in the technical reference.

For the Presence, we recommend straps in black or brown alligator (they enhance the minimalist elegance of the design), or in calf leather with vegetable tanning for a visible ageing effect. Sophisticated enthusiasts prefer shell cordovan, which offers superior durability and a noble patina. Avoid ornately tooled or perforated straps: the aesthetic language of the Presence is rigorously minimalist.

Use a spring bar remover tool to extract the small pins holding the strap to the case lugs. Position the tool in the narrow groove between lug and strap, then gently push upward to release the pin. Once the old strap is removed, align the new strap with the lugs and reinsert the pins. Ensure the strap is compatible with 18 mm lugs: if too wide or too narrow, it will not mount correctly.

Yes, you can fit quality aftermarket straps provided they are specifically compatible with 18 mm lug width. Always verify that the strap is designed for 18 mm watches, not to be confused with more common sizes (16, 20, 22 mm). Artisanal straps from specialised workshops guarantee bespoke construction and perfect fit to your preferences in leather, colour, and buckle type.

Durability depends on material: quality alligator resists 5–7 years with daily wear; shell cordovan exceeds 10 years thanks to the fibrous structure of horse leather; vegetable-tanned calf lasts 3–5 years but visibly ages, narrating use through patina development. Proper storage (protection from excessive humidity, periodic cleaning with a soft cloth) significantly extends the useful life of the strap.