Strap for Presence 25.5 Automatic PVD Gold / White / Bracelet

The lug width of the Longines Presence L4.321.2.18.7 is 13mm. This measurement is specific to the ladies' model and represents the distance between the two poles of the lug seat on the case. Do not confuse this dimension with the total case diameter (25.50mm). To verify the measurement, simply remove the original strap and measure the lug seat directly with a digital calliper.

The ideal strap depends on usage and personal preference. For formal occasions and professional environments, black or burgundy alligator combines discrete elegance with temporal versatility. If you seek natural patina development, vegetable-tanned calf evolves chromatically over months of wear. For a contemporary sporting approach, a mercerised cotton NATO maintains the lightness of the case. Satinized FKM rubber remains the technical choice for environmental resistance, though less visually refined than leather options.

Strap replacement on the Presence L4.321.2.18.7 requires extraction of the spring bars from the lug seats. Using a dedicated extractor tool (provided with Milano Straps straps), position the lever on the lateral groove of the spring bar, press gently and slide the strap outward. Insert the new strap by aligning the spring bars in the seats, verifying that the spring bar is completely inserted. The procedure requires precision to avoid case scratching, which is why Casati Milano atelier offers replacement service by appointment.

Yes, Milano Straps offers a complete collection of compatible 13mm aftermarket straps for the Presence L4.321.2.18.7. The selection includes hand-dyed alligator, vegetable-tanned calf, NATO fabrics and satinized FKM rubber, all available in standard sizes and customisable with initials and stitching thread choice. Compatibility is guaranteed by the 13mm lug width, identical to the original Longines strap. Straps are ready to ship and include fitting instructions.

The lifespan of a leather strap depends on material, usage and maintenance. Quality artisanal alligator or calf, used daily with proper care (protection from excessive moisture, limited direct sunlight exposure, periodic cleaning with damp cloth), has a useful life of 4-7 years. Vegetable tanning develops patina and matures over time, often extending use to 8-10 years for particularly well-maintained pieces. Milano Straps provides 18-month warranty on artisanal straps and recommends strap replacement when stitching begins to separate or leather shows wear in the bending area near the buckle.