Louis Erard
Excellence 86236AA25.BDC555— lug 22mm

The lug width of the Louis Erard Excellence 86236AA25.BDC555 is 22 mm (measured centre to centre between the pin holes). This measurement is standard for 42 mm case diameter models and ensures correct aesthetic balance and ergonomic comfort on the wrist. Any aftermarket strap must respect this 22 mm specification to avoid play or abnormal tension on the lug pins.

For this model, we recommend an Italian calf leather strap with vegetable tanning (preferably in dark Havana tone) or high-grade alligator. Both materials respect the sober, technical identity of the Excellence. Calf leather offers versatility and develops a fascinating natural patina over time, whilst alligator delivers formal elegance without compromise. For intensive use or humid environments, a quality Neoprene rubber strap guarantees durability and comfort.

To change the strap, use a dedicated tool called a spring bar tool or one-action press to remove the lug pins. Gently separate the existing strap from the case lugs, starting with one side. Align the new strap holes with the pins and press firmly until fully seated (you will hear a slight click). Verify that the strap is completely locked before wearing the watch. If uncertain, entrust the task to a professional to avoid damage to the pins or case.

Yes, provided the strap is certified for 22 mm lug width. Milano Straps supplies exclusively handcrafted straps tested for compatibility with watches in this category. Before purchase, verify that the width is exactly 22 mm (centre to centre of pins) and that the material (leather, rubber, NATO) matches your intended use and aesthetic preferences. Quality aftermarket straps often deliver superior drape and comfort compared to originals.

The lifespan of a natural leather strap depends on usage, care, and material quality. A vegetable-tanned calf strap (as recommended for the Excellence) typically lasts between 3 and 7 years with moderate daily wear. Avoid prolonged exposure to direct sunlight, salt water, and intense perspiration to significantly extend service life. The patina that develops is protective and beneficial. If exposed to extreme conditions (water sports, gym), switch to a rubber or NATO strap. Periodic maintenance with leather-specific creams nourishes the hide and restores flexibility.