Strap for Presence 25.5 Automatic PVD Gold / Champagne

The Longines Présence L4.321.2.42.2 is fitted with a 13-millimetre lug width. This dimension, characteristic of Longines models from the 1990s, represents an obsolete standard in contemporary production. Measuring the lug width correctly requires positioning a ruler between the two shoulders of the case where the strap attaches, and reading the distance. For the Présence L4.321.2.42.2, the structural constraint is fixed at 13mm, making the selection of specifically calibrated straps essential.

The choice of the best strap depends on intended use and aesthetic preference. American alligator, with its natural grain and nervous texture, emphasises the architectural character of the case and guarantees robustness for daily wear rotations. Tuscan calf leather with vegetable tanning privileges natural ageing, accumulating patina over time. Hungarian shell cordovan creates severe contrast with stainless steel, highlighting the design's sobriety. Cotton NATO represents the pragmatic solution, reversible and comfortable, ideal for those seeking versatility without aesthetic compromise.

Changing the strap on the Présence L4.321.2.42.2 requires the use of a specific tool: a spring bar remover. Position the watch on a soft surface, identify the small lateral pins beneath the lug on each side of the case, and use the remover to gently push the pin inward, allowing the strap to slide free. Replace the old strap with the new one, ensuring the pins engage correctly in the case holes. If you are uncertain of the procedure, consulting an expert avoids the risk of damaging the case components.

Yes, the Présence is fully compatible with aftermarket straps of quality provided they are specifically manufactured for 13-millimetre lugs. However, the rarity of this dimension contemporarily requires careful selection: the majority of contemporary strap makers work with 14mm, 16mm or larger lugs. Opting for bespoke leather straps guarantees perfect geometric fit and compatibility with the case pins, in addition to the possibility of personalising thickness, colour and stitching thread according to individual preferences.

The lifespan of a leather strap depends on frequency of use, selected material and ambient humidity conditions. Alligator, thanks to its dense and naturally oily fibre, can last three to five years of daily wear before requiring replacement. Tuscan calf leather with vegetable tanning, more sensitive to humidity, tends to exhibit structural failure after approximately twenty-four months. Shell cordovan, for its almost woody density, can exceed eight years. All materials benefit from rotation with other straps, reducing constant exposure to humidity and perspiration. The Casati Milano atelier provides an 18-month warranty on all straps produced, covering manufacturing defects and first-level structural failures.