Strap for Presence 34.5 Automatic Yellow Stick Yellow Bracelet

The lug width of the Longines Présence L4.721.2.42.8 is 18mm. This measurement refers to the distance between the case lugs. To verify, measure with a digital calliper the external space between the two metal lugs. It is a rare size in the contemporary market, specific to this 34.50mm case with dress watch proportions.

For the Présence L4.721.2.42.8, we recommend a satin-finished alligator in black or cognac brown: the fine grain does not compete visually with the sober dial. Quality alternatives: box calf with vegetable tanning (develops natural patina over years), NATO in cotton grey or navy blue for versatility, satin black FKM rubber for formal elegance without tactile noise.

The strap is changed using a dedicated tool to push the lug closure pins. Insert the tool into the small lateral notch of the lug, apply gentle pressure to release the pin and extract the worn strap. Verify that the new lugs are 18mm before installation. If you are not experienced, consult a professional watchmaker.

Yes, provided it is specifically 18mm. All 18mm lug width straps are compatible with the Présence L4.721.2.42.8. We recommend artisanal-quality alligator straps, box calf with vegetable tanning, or NATO and FKM rubber, which respect the proportions of the 34.50mm case and the formal character of the model.

A high-quality alligator or box calf strap has an average lifespan of 3–5 years with daily wear, depending on usage frequency, environmental humidity, and maintenance. Vegetable-tanned leather tends to age more visibly, developing patina and natural scratches that characterise its appeal. Casati Milano warranty on bespoke straps: 18 months.