Strap for Presence 34.5 Automatic Yellow

The lug width of the Longines Presence L4.821.2.42.7 is 18 millimetres. This measurement is crucial for strap compatibility and is calculated by measuring the distance between the two attachment points on the case, excluding the depth of the lug seat. It is essential to use straps exactly 18 mm wide to avoid mechanical stress on the watch structure.

The best strap for the Longines Presence depends on usage and personal preference. For maximum formal elegance, we recommend dark brown or black alligator; for superior daily versatility, vegetable-tanned calf leather offers comfort and develops character over time. NATO canvas straps represent a modern and practical alternative, whilst rubber is ideal for dynamic work environments.

To change the strap, you must remove the current strap using a specialised tool (without holes) that allows you to extract the pins connecting the strap to the case. Position the watch with the lug facing upwards, insert the tool into the lateral hole of the lug seat and gently push the pin outwards. Once removed, insert the new 18 mm strap and reposition the pins with equal care.

Yes, it is absolutely possible and recommended. High-quality aftermarket 18 mm straps, such as those in alligator, shell cordovan or vegetable-tanned calf, fit perfectly on your Longines. Always verify that the width is exactly 18 mm and that the thickness is compatible with the depth of the lug seat.

The durability of a leather strap depends on the quality of the material, daily use and environmental conditions. A high-quality alligator or calf strap, used moderately, lasts an average of 3-5 years. If exposed to constant moisture or used intensively, the lifespan reduces to 2-3 years. Vegetable-tanned leather, although more resistant to ageing, still requires periodic replacement after approximately 4-6 years of regular use.