Strap for Presence 34.5 Automatic Yellow Roman Bracelet Two Tone

The Longines Presence L4.721.2.11.7 has a lug width of 18 mm, a rare and characteristic measurement for this specific reference. To verify strap compatibility, measure the space between the two lugs: the new strap must fit with approximately 0.5 mm tolerance on both sides, neither forcing nor sitting loose.

We recommend a French-grade alligator strap in vegetable tanned leather, in shades of beaver brown or black. The scale texture creates a discreet luxury effect, and vegetable tanning develops a patina that evolves over time. Alternatively, Italian calf leather with velvety finish offers tactile softness, whilst a grey NATO strap maintains practicality for summer and sports contexts.

To change the strap, use a dedicated tool (spring bar remover) available from watch accessory suppliers. Gently press the ball-shaped button at the end of the spring, extracting the strap from the lugs. Insert the new strap by aligning the holes with the lugs, then position the spring ensuring it is locked securely on both sides. A straightforward operation requiring precision to avoid scratching the case.

Yes, any strap with an 18 mm lug width is compatible with the Longines Presence L4.721.2.11.7, provided that visual proportions respect the 34.50 mm case diameter. Artisanal brands such as Casati Milano offer custom straps in fine leather (alligator, shell cordovan, Italian calf) made to measure. Online you will find several ready-to-ship options in our 18 mm catalogue.

A quality leather strap (alligator, shell cordovan or Italian calf), with regular maintenance, typically lasts 3–5 years with daily wear. An alligator strap in vegetable tanning develops patina and strengthens over time, potentially lasting 7–8 years. Canvas NATO or FKM rubber straps have similar longevity but greater resistance to wear. Key factors: frequency of use, climate, sun exposure and periodic maintenance with leather-specific balms.