Louis Erard
Excellence 34248AA64.BVA150— lug 22mm

The lug width of this model is 22mm. This measurement is calculated from the lug shoulder to the inside of the lateral lug and represents the construction standard of the reference. It is essential to choose a strap with spring bars dimensioned for 22mm to ensure stable and secure seating.

The best strap depends on the intended use. For formal and professional contexts, an alligator or Italian calf strap with vegetable tanning offers elegance and durability. For a more sport-casual approach, a cotton NATO or butyl rubber band ensures practicality and moisture resistance. The aesthetic choice remains personal, but the construction quality of the leather should reflect the mechanical integrity of the watch.

Strap change is performed using the spring bars (elastic pins) housed in the lateral lugs of the case. Using a dedicated tool (spring bar tool), the pins are slightly compressed, the old strap is removed, and the new one is positioned in the sockets. It is advisable to perform the operation on a soft surface to avoid case scratches. If you lack experience, consulting a professional is the safest choice.

Yes, any strap with spring bars dimensioned at 22mm is perfectly compatible with this model. Quality aftermarket straps, made from vegetable-tanned leather, alligator, or NATO fabric, maintain the same safety standards as original straps. The important thing is to verify that the spring bars are of appropriate section (standard 1.5-1.8mm) and that the strap is handcrafted with robust terminals.

A quality leather strap with vegetable tanning and handcrafted construction has an average lifespan of 3-5 years with regular daily use. Longevity depends on factors such as moisture exposure, perspiration type, frequency of wear, and maintenance. A strap periodically treated with natural oils or conditioning creams maintains flexibility and structural integrity longer. Butyl rubber, conversely, has a lifespan of 2-3 years due to elastomer wear.